Ford Escape Quiz
Chassis

Diagnosis and Testing - Parking Brake

In this manual: Chassis
General Information — 26Chassis — 160Powertrain — 323Electrical — 356Body and Paint — 290
~40min read
0102030405054N·mlb·ft
Tightening torque found on this page

Diagnostic Trouble Code (DTC) Chart

The diagnosis in this manual assumes a certain level of skill and knowledge of Ford-approved diagnostic procedures.
REFER TO: Diagnostic Methods (100-00 General Information, Description and Operation).


Diagnostic Trouble Code Chart


Module Trouble Code Description Action
ABS B1111:53 Electric Parking Brake Activation: Deactivated GO to Pinpoint Test I
ABS B1111:54 Electric Parking Brake Activation: Calibration Missing GO to Pinpoint Test F
ABS C0609:01 Parking Brake Switch Circuit: General Electrical Failure GO to Pinpoint Test B
ABS C0616:9A Parking Brake Control Module Control Circuit Performance: Component or System Operating Conditions GO to Pinpoint Test B
ABS C1034:01 Parking Brake: General Electrical Failure GO to Pinpoint Test B
ABS C1034:07 Parking Brake: Mechanical Failure GO to Pinpoint Test B
ABS C1034:13 Parking Brake: Circuit Open GO to Pinpoint Test B
ABS C1034:25 Parking Brake: Signal/Waveform Error GO to Pinpoint Test B
ABS C1034:2F Parking Brake: Erratic Signal GO to Pinpoint Test B
ABS C1034:47 Parking Brake: Watchdog/Safety Microcontroller Failure GO to Pinpoint Test B
ABS C1034:48 Parking Brake: Monitoring Software Failure GO to Pinpoint Test B
ABS C1034:57 Parking Brake: Incorrect/Incompatible Software Component GO to Pinpoint Test B
ABS C1034:77 Parking Brake: Commanded Position Not Available GO to Pinpoint Test D
ABS C1034:78 Parking Brake: Incorrect Alignment or Adjustment GO to Pinpoint Test J
ABS C1034:97 Parking Brake: Component or System Operation Obstructed or Blocked GO to Pinpoint Test E
ABS C1A43:98 Engine Power: Component or System Overheating GO to Pinpoint Test E
ABS C2005:04 Right Actuator: Internal Control Module Failure GO to Pinpoint Test H
ABS C2005:1B Right Actuator: Circuit Resistance Above Threshold GO to Pinpoint Test E
ABS C2005:71 Right Actuator: Actuator Stuck GO to Pinpoint Test E
ABS C2005:74 Right Actuator: Actuator Slipping GO to Pinpoint Test C
ABS C2005:77 Right Actuator: Commanded Position Not Available GO to Pinpoint Test D
ABS C2005:92 Right Actuator: Performance or Incorrect Operation GO to Pinpoint Test A
ABS C2006:04 Left Actuator: Internal Control Module Failure GO to Pinpoint Test H
ABS C2006:1B Left Actuator: Circuit Resistance Above Threshold GO to Pinpoint Test E
ABS C2006:71 Left Actuator: Actuator Stuck GO to Pinpoint Test E
ABS C2006:74 Left Actuator: Actuator Slipping GO to Pinpoint Test C
ABS C2006:77 Left Actuator: Commanded Position Not Available GO to Pinpoint Test D
ABS C2006:92 Left Actuator: Performance or Incorrect Operation GO to Pinpoint Test A
ABS C2007:13 Right Motor: Circuit Open GO to Pinpoint Test E
ABS C2007:1C Right Motor: Circuit Voltage Out of Range GO to Pinpoint Test E
ABS C2007:92 Right Motor: Performance or Incorrect Operation GO to Pinpoint Test E
ABS C2007:96 Right motor: internal component failure GO to Pinpoint Test G
ABS C2008:13 Left motor: circuit open GO to Pinpoint Test E
ABS C2008:1C Left motor: circuit voltage out of range GO to Pinpoint Test E
ABS C2008: 92 Left motor: performance or incorrect operation GO to Pinpoint Test E
ABS C2008: 96 Left motor: internal component failure GO to Pinpoint Test G
ABS U2002:00 Switch: no sub-type information GO to Pinpoint Test L
ABS U2002:47 Switch: Watchdog/Safety µC Failure GO to Pinpoint Test B
HVAC B1541:11 Auto Hold indicator: short to ground GO to Pinpoint Test E
HVAC B1541:15 Auto Hold indicator: short to battery or open circuit GO to Pinpoint Test E

Global Customer Symptom Codes (GCSC) Table

The diagnosis in this manual assumes a certain level of skill and knowledge of Ford-approved diagnostic procedures.
REFER TO: Diagnostic Methods (100-00 General Information, Description and Operation).


Symptom Action
Driver Assistance and Information > Warning Indicators/Messages/Chimes > Brake System > Remains On GO to Pinpoint Test K
Stopping/Control/Driving > Parking Brake > Performance/Efficiency > Does Not Work GO to Pinpoint Test B
Stopping/Control/Driving > Parking Brake > Performance/Efficiency > Does Not Work GO to Pinpoint Test E
Stopping/Control/Driving > Parking Brake > Performance/Efficiency > Intermittent GO to Pinpoint Test B
Stopping/Control/Driving > Parking Brake > Performance/Efficiency > Intermittent GO to Pinpoint Test E
Stopping/Control/Driving > Parking Brake > Does Not Release/Drags > Always GO to Pinpoint Test B
Stopping/Control/Driving > Parking Brake > Does Not Release/Drags > Always GO to Pinpoint Test E
Stopping/Control/Driving > Parking Brake > Does Not Release/Drags > Cold GO to Pinpoint Test B
Stopping/Control/Driving > Parking Brake > Does Not Release/Drags > Cold GO to Pinpoint Test E
Stopping/Control/Driving > Parking Brake > Does Not Release/Drags > Hot GO to Pinpoint Test B
Stopping/Control/Driving > Parking Brake > Does Not Release/Drags > Hot GO to Pinpoint Test E
Stopping/Control/Driving > Parking Brake > Does Not Release/Drags > Intermittent GO to Pinpoint Test B
Stopping/Control/Driving > Parking Brake > Does Not Release/Drags > Intermittent GO to Pinpoint Test E

Symptom Chart

Symptom Chart: Parking Brake and Actuation

The diagnosis in this manual assumes a certain level of skill and knowledge of Ford-approved diagnostic procedures.
REFER TO: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Action
Module Does Not Respond to Diagnostic Scan Tool
REFER TO: Communication Network (418-00 Communication Network, Diagnosis and Testing).
Parking brake amber indicator is always on or never on GO to Pinpoint Test K
Message center displays parking brake fault Service Now GO to Pinpoint Test K
Message center shows parking brake function is limited. Service required. GO to Pinpoint Test K
Message center displays service mode GO to Pinpoint Test K
Rear brakes are dragging GO to Pinpoint Test E
Parking brake does not apply or does not hold the vehicle GO to Pinpoint Test E
Parking brake does not release using the parking brake switch GO to Pinpoint Test E
Parking brake automatic release function does not work GO to Pinpoint Test E

Pinpoint Tests


PINPOINT TEST A: C2005:92, C2006:92

For schematics and connectors, refer to Wiring Diagrams Cell 42.

Normal Operation and Fault Symptoms

The ABS module measures the current consumed by both actuator motors during each parking brake apply request. The current consumption measurement for these 2 Diagnostic Trouble Codes (DTCs) starts when the caliper piston and brake pad begin to move and stops when the brake pad contacts the brake disc, known as free running. If the free-running current consumption exceeds the programmed limit, the ABS module sets the DTC. This is most likely caused by high mechanical friction in the actuator or motor, a shorted motor, a locked motor, or a seized motor.

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
ABS C2005:92 Right Actuator: Performance or Incorrect Operation This DTC is stored in continuous memory and on demand if the current consumed by the actuator motor during free running exceeds 10 amperes.
ABS C2006:92 Left Actuator: Performance or Incorrect Operation This DTC is stored in continuous memory and on demand if the current consumed by the actuator motor during free running exceeds 10 amperes.

Possible Sources

  • High mechanical friction in the actuator
  • Shorted motor
  • Locked motor
A1 CHECK THE PARKING BRAKE ACTUATOR MOTOR OPERATION
  • Make sure the parking brakes are released.
  • Remove the parking brake actuator motor, do not disconnect the electrical connector.
    REFER TO: Parking Brake Actuator Motor (206-05 Parking Brake and Actuation, Removal and Installation).
  • NOTE: When performing this step, the ABS module sets DTC C2005:74 or C2006:74. Observe the actuator motor and, using the parking brake switch, apply and release the parking brake.

Does the actuator motor operate?
Yes GO to A2
No INSTALL a new parking brake actuator motor.
REFER TO: Parking Brake Actuator Motor (206-05 Parking Brake and Actuation, Removal and Installation).
A2 CHECK THE MECHANICAL RESISTANCE
  • Make sure the parking brakes are released.
  • Using a torque wrench, rotate the ball screw approximately 30 degrees left or right. Note the torque value required to rotate the ball screw.

Does the torque required to rotate the ball screw exceed 5 N·m?
Yes INSTALL a new brake caliper.
REFER TO: Brake Caliper (206-04 Rear Disc Brake, Removal and Installation).
No INSTALL a new parking brake actuator motor.
REFER TO: Parking Brake Actuator Motor (206-05 Parking Brake and Actuation, Removal and Installation).
PINPOINT TEST B: PARKING BRAKE DOES NOT OPERATE PROPERLY

For schematics and connectors, refer to Wiring Diagrams Cell 42.

Normal Operation and Fault Symptoms

The parking brake switch has 3 positions: APPLY (pushed up), RELEASE (pushed down), and NEUTRAL. The ABS module sends voltage to the parking brake switch, and this voltage returns through 1 of 3 circuits. An open, excessive resistance, or short to ground in the parking brake switch circuits or the parking brake switch causes the ABS module to set a DTC.

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
ABS C0609:01 Parking Brake Switch Circuit: General Electrical Failure This DTC is stored in continuous memory and on demand if the test voltage sent to the parking brake switch from the ABS module does not return or returns on an incorrect path.
ABS C0616:9A Parking Brake Control Module Control Circuit Performance: Component or System Operating Conditions This DTC is set when the vehicle is in roller dyno mode.
ABS C1034:01 Parking Brake: General Electrical Failure This DTC is stored in continuous memory and on demand if the test voltage sent to the parking brake switch from the ABS module does not return or returns on an incorrect path.
ABS C1034:07 Parking Brake: Mechanical Failure This DTC is stored in continuous memory and on demand if the test voltage sent to the parking brake switch from the ABS module does not return or returns on an incorrect path.
ABS C1034:13 Parking Brake: Circuit Open This DTC is stored in continuous memory and on demand if the test voltage sent to the parking brake switch from the ABS module does not return or returns on an incorrect path.
ABS C1034:25 Parking Brake: Signal/Waveform Error This DTC is stored in continuous memory and on demand if the test voltage sent to the parking brake switch from the ABS module does not return or returns on an incorrect path.
ABS C1034:2F Parking Brake: Erratic Signal This DTC is stored in continuous memory and on demand if the test voltage sent to the parking brake switch from the ABS module does not return or returns on an incorrect path.
ABS C1034:47 Parking Brake: Watchdog/Safety Microcontroller Failure This DTC is stored in continuous memory and on demand if the test voltage sent to the parking brake switch from the ABS module does not return or returns on an incorrect path.
ABS C1034:48 Parking Brake: Monitoring Software Failure This DTC is stored in continuous memory and on demand if
ABS C1034:57 Parking Brake: Incorrect/Incompatible Software Component This DTC is stored in continuous memory and on demand if
ABS U2002:47 Switch: Watchdog/Safety µC Failure This DTC is stored in continuous memory and on demand if the test voltage sent to the parking brake switch from the ABS module does not return or returns on an incorrect path.

Possible Sources

  • Wiring, Terminals or Connectors
  • Parking Brake Switch
  • ABS Module
B1 CHECK THE PARKING BRAKE SWITCH IN THE APPLIED POSITION
  • Ignition OFF.
  • Disconnect the parking brake switch C3675.
  • With the parking brake switch in the applied position (switch pushed up), measure:
    Positive lead Measurement/Action Negative lead
    C3675-8 Component side C3675-9 Component side
    C3675-7 Component side C3675-10 Component side
    C3675-4 Component side C3675-3 Component side

Is the resistance less than 5 ohms?
Yes GO to B2
No INSTALL a new parking brake switch.
REFER TO: Parking Brake Switch (206-05 Parking Brake and Actuation, Removal and Installation). To restore the functionality of the parking brake switch, CARRY OUT the following procedure: TURN the ignition from ON to OFF and back to ON.
PLACE the parking brake switch in the APPLY position, then RELEASE the switch to the NEUTRAL position. PLACE the switch in the RELEASE position, then RELEASE the switch to the NEUTRAL position.
REPEAT the procedure 1 time: PLACE the parking brake switch in the APPLY position, then RELEASE the switch to the NEUTRAL position. SET the switch to the RELEASE position, then RELEASE the switch to the NEUTRAL position.
B2 CHECK THE PARKING BRAKE SWITCH IN THE RELEASED POSITION
  • With the parking brake switch in the released position (switch pressed down), measure:
    Positive lead Measurement/Action Negative lead
    C3675-4 (component side) C3675-9 (component side)
    C3675-7 (component side) C3675-3 (component side)
    C3675-8 (component side) C3675-10 (component side)

Is the resistance less than 5 ohms?
Yes GO to B3
No INSTALL a new parking brake switch.
REFER TO: Parking Brake Switch (206-05 Parking Brake and Actuation, Removal and Installation). To restore the functionality of the parking brake switch, CARRY OUT the following procedure: TURN the ignition from ON to OFF and back to ON.
PLACE the parking brake switch in the APPLY position, then RELEASE the switch to the NEUTRAL position. PLACE the switch in the RELEASE position, then RELEASE the switch to the NEUTRAL position.
REPEAT the procedure 1 time: PLACE the parking brake switch in the APPLY position, then RELEASE the switch to the NEUTRAL position. SET the switch to the RELEASE position, then RELEASE the switch to the NEUTRAL position.
B3 CHECK THE PARKING BRAKE SWITCH CIRCUITS FOR A SHORT TO GROUND
  • Disconnect the ABS module C155.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C3675-3 Ground
    C3675-4 Ground
    C3675-9 Ground
    C3675-10 Ground
    C3675-7 Ground
    C3675-8 Ground

Is the resistance greater than 10000 ohms?
Yes GO to B4
No REPAIR the circuit.
B4 CHECK THE PARKING BRAKE SWITCH CIRCUITS FOR AN OPEN CIRCUIT
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C3675-3 C155-17
    C3675-4 C155-20
    C3675-8 C155-22
    C3675-7 C155-21
    C3675-9 C155-19
    C3675-10 C155-18

Is the resistance less than 3 ohms?
Yes GO to B5
No REPAIR the circuit.
B5 CHECK THE PARKING BRAKE SWITCH CIRCUITS FOR A SHORT CIRCUIT
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C3675-3 C3675-4
    C3675-3 C3675-8
    C3675-3 C3675-7
    C3675-3 C3675-9
    C3675-3 C3675-10
    C3675-4 C3675-8
    C3675-4 C3675-7
    C3675-4 C3675-9
    C3675-4 C3675-10
    C3675-8 C3675-7
    C3675-8 C3675-9
    C3675-8 C3675-10
    C3675-7 C3675-9
    C3675-7 C3675-10
    C3675-9 C3675-10

Is the resistance greater than 10000 ohms?
Yes GO to B6
No REPAIR the circuit.
B6 CHECK THE PARKING BRAKE SWITCH CIRCUITS FOR A SHORT TO VOLTAGE
  • The ignition is on.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    C3675-3 Ground
    C3675-4 Ground
    C3675-8 Ground
    C3675-7 Ground
    C3675-9 Ground
    C3675-10 Ground

Is there voltage present?
Yes REPAIR the circuit.
No GO to B7
B7 CHECK ALL ELECTRICAL CONNECTIONS
  • Ignition OFF.
  • Disconnect the ABS module and the parking brake switch.
  • Using a good light source, inspect all disconnected electrical connectors for the following:
    • corrosion - install a new connector or terminal and clean the module contacts
    • damaged or bent pins - install new terminals or pins
    • pushed-out pins - install new pins as necessary
    • spread terminals - install new terminals as necessary

Are there no signs of corrosion, damaged terminals, bent terminals, pushed-out terminals or stretched terminals in the connectors?
Yes GO to B8
No REPAIR the connector or terminals.
For wiring diagrams and connector information, refer to Wiring Diagrams, cell 5.
B8 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION
  • Connect the ABS module C155. Make sure that it is correctly installed and latched.
  • Connect the parking brake switch C3675. Make sure that it is correctly installed and latched.
  • The ignition is on.
  • Carry out the following steps to restore the functionality of the parking brake switch:
    • Set the switch to the APPLY position.
    • Release the switch to the NEUTRAL position.
    • Set the switch to the RELEASE position.
    • Release the switch to the NEUTRAL position.
    • Repeat steps 4.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, STOP this test and FOLLOW the service article instructions.
If no Technical Service Bulletin (TSB) exists for this concern, INSTALL a new ABS module.
REFER TO: Anti-Lock Brake System (ABS) Module - Vehicles With: Vacuum Brake Booster (206-09 Anti-Lock Brake System (ABS) and Stability Control System, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
PINPOINT TEST C: C2005:74, C2006:74

For schematics and connectors, refer to Wiring Diagrams Cell 42.

Normal Operation and Fault Symptoms

When the ABS module receives a parking brake apply request, the ABS module supplies voltage to the parking brake actuator motors. The ABS module also monitors the current drawn by the actuator motors to determine when the brake pads contact the brake disc, and to determine when the appropriate clamp force is applied to the brake disc. If the actuator motors cannot apply the appropriate clamp force within a set period of time, the ABS module sets a diagnostic trouble code. The most likely cause is a broken actuator motor shaft, missing or severely worn brake pads, or a damaged or severely worn brake disc. Once the root cause of the diagnostic trouble code has been repaired, the parking brake system must be re-enabled. To re-enable the parking brake system, turn the ignition OFF, then back ON, then apply and release the parking brake.

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
ABS C2005:74 Right Actuator: Actuator Slipping This diagnostic trouble code is stored in permanent memory and is set on demand when the clamp request from the ABS module takes longer than 8 seconds.
ABS C2006:74 Left Actuator: Actuator Slipping This diagnostic trouble code is stored in permanent memory and is set on demand when the clamp request from the ABS module takes longer than 8 seconds.

Possible Sources

  • Brake pads
  • Brake Disc
  • Parking Brake Actuator Motor
  • Rear brake caliper
C1 CHECK THE REAR BRAKE PADS
  • Place the transmission in NEUTRAL, raise and support the vehicle.
    REFER TO: Jacking and Lifting - Overview (100-02 Jacking and Lifting, Description and Operation).
  • Check the minimum thickness of the rear brake pads.
    REFER TO: Parking Brake (206-05 Parking Brake and Actuation, Diagnosis and Testing).

Are the brake pads present and at or above the minimum thickness?
Yes GO to C2
No INSTALL new rear brake pads.
REFER TO: Brake Pads (206-04 Rear Disc Brake, Removal and Installation).
C2 CHECK THE REAR BRAKE DISCS
  • Check the minimum thickness of the rear brake discs.
    REFER TO: Parking Brake (206-05 Parking Brake and Actuation, Diagnosis and Testing).

Are the brake discs at or above the minimum thickness?
Yes GO to C3
No INSTALL new rear brake discs.
REFER TO: Brake Disc (206-04 Rear Disc Brake, Removal and Installation).
C3 CHECK THE ACTUATOR PISTON OPERATION
  • Remove the parking brake actuator motor.
    REFER TO: Parking Brake Actuator Motor (206-05 Parking Brake and Actuation, Removal and Installation).
  • Using hand force, rotate the ball-screw on the brake caliper counterclockwise and observe the piston movement.

Does the piston move when the ball-screw is rotated?
Yes INSTALL a new parking brake actuator motor.
REFER TO: Parking Brake Actuator Motor (206-05 Parking Brake and Actuation, Removal and Installation).
No INSTALL a new rear brake caliper.
REFER TO: Brake Caliper (206-04 Rear Disc Brake, Removal and Installation).
PINPOINT TEST D: C1034:77, C2005:77, C2006:77

For schematics and connectors, refer to Wiring Diagrams Cell 42.

Normal Operation and Fault Symptoms

When the ABS module receives the parking brake apply or release request, the ABS module supplies voltage to the parking brake actuator motors. The ABS module also monitors the current drawn by the actuator motors to determine when the brake pads contact the brake disc, to determine when the appropriate clamping force is applied to the brake disc, and to determine when the brake pads are retracted to the home position. The actuator motors have a serviceable harness connector. Connection of the actuator motor to the body wire harness is at C410 for the left-hand actuator motor and the right-hand actuator motor.

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
ABS C1034:77 Parking Brake: Commanded Position Not Available This DTC is set in continuous memory and on demand if, during the apply or release, the ABS module detects uneven current consumption.
ABS C2005:77 Right Actuator: Commanded Position Not Available This DTC is set in continuous memory and on demand if, during the apply or release, the ABS module detects uneven current consumption.
ABS C2006:77 Left Actuator: Commanded Position Not Available This DTC is set in continuous memory and on demand if, during the apply or release, the ABS module detects uneven current consumption.

Possible Sources

  • Wiring, Terminals or Connectors
  • Brake Fluid Leak
  • Parking Brake Actuator Motor
  • Rear brake caliper
D1 CHECK OTHER ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)
  • The ignition is on.
  • Using the diagnostic scan tool, perform a self-test of the ABS module.

Is DTC C1034:77, C2005:74 or C2006:74 present?
Yes CHECK THE DIAGNOSIS OF DTC C2005:74 or C2006:74 before diagnosing DTC C1034:77, C2005:77 or C2006:77. GO to Pinpoint Test C.
No If DTC C2005:77 or C2006:77 is present, GO to D2.
For all other ABS module diagnostic trouble codes (DTCs), GO to the Anti-Lock Brake System (ABS) Module DTC Chart.
D2 CHECK THE ACTUATOR MOTOR CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect the ABS module C155.
  • Disconnect the suspect parking brake actuator motor electrical connector.
  • For the right-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4479-1 Ground
    C4479-2 Ground
  • For the left-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4478-1 Ground
    C4478-2 Ground

Is the resistance greater than 10000 ohms?
Yes GO to D3
No CHECK the actuator motor harness and connectors for correct routing, damaged connectors, spread terminals, bent or pushed-in pins, or any signs of corrosion. INSTALL a new jumper harness as necessary.
If the jumper harness is OK, REPAIR the circuit.
D3 CHECK THE ACTUATOR MOTOR CIRCUITS FOR A SHORT TOGETHER
  • For the right-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4479-1 C4479-2
  • For the left-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4478-1 C4478-2

Is the resistance greater than 10000 Ohms?
Yes GO to D4
No CHECK the actuator motor harness and connectors for correct routing, damaged connectors, spread terminals, bent or pushed-in pins, or any signs of corrosion. INSTALL a new jumper harness as necessary.
If the jumper harness is OK, REPAIR the circuit.
D4 CHECK THE ACTUATOR MOTOR CIRCUITS FOR AN OPEN
  • For the right-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4479-1 C155-3
    C4479-2 C155-2
  • For the left-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4478-1 C155-12
    C4478-2 C155-13

Is the resistance less than 3 ohms?
Yes GO to D5
No CHECK the actuator motor harness and connectors for correct routing, damaged connectors, spread terminals, bent or pushed-in pins, or any signs of corrosion. INSTALL a new jumper harness as necessary.
If the jumper harness is OK, REPAIR the circuit.
D5 CHECK THE ACTUATOR MOTOR CIRCUITS FOR A SHORT TO VOLTAGE
  • The ignition is on.
  • For the right-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4479-1 Ground
    C4479-2 Ground
  • For the left-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4478-1 Ground
    C4478-2 Ground

Is there voltage present?
Yes CHECK the actuator motor harness and connectors for correct routing, damaged connectors, spread terminals, bent or pushed-in pins, or any signs of corrosion. INSTALL a new jumper harness as necessary.
If the jumper harness is OK, REPAIR the circuit.
No GO to D6
D6 CHECK THE ACTUATOR MOTOR FOR SIGNS OF BRAKE FLUID OR WATER INGRESS
  • Ignition OFF.
  • Remove the parking brake actuator motor.
    REFER TO: Parking Brake Actuator Motor (206-05 Parking Brake and Actuation, Removal and Installation).
  • Inspect the actuator motor and brake caliper for brake fluid leakage or water ingress.

Are there signs of brake fluid leakage or water ingress?
Yes If signs of water ingress are found, IDENTIFY and CORRECT the root cause.
If signs of brake fluid leakage are found, INSTALL a new brake caliper and parking brake actuator motor assembly.
REFER TO: Parking Brake Actuator Motor (206-05 Parking Brake and Actuation, Removal and Installation).
REFER TO: Brake Caliper (206-04 Rear Disc Brake, Removal and Installation).
No GO to D7
D7 CHECK THE BRAKE CALIPER FOR BRAKE FLUID LEAKAGE
  • Clean the brake caliper of dirt or debris.
  • Press and release the brake pedal.
  • Inspect the brake caliper for signs of brake fluid leakage.

Are there signs of brake fluid leakage?
Yes INSTALL a new rear brake caliper and parking brake actuator motor.
REFER TO: Parking Brake Actuator Motor (206-05 Parking Brake and Actuation, Removal and Installation).
REFER TO: Brake Caliper (206-04 Rear Disc Brake, Removal and Installation).
No INSTALL a new parking brake actuator motor.
REFER TO: Parking Brake Actuator Motor (206-05 Parking Brake and Actuation, Removal and Installation).
PINPOINT TEST E: PARKING BRAKE DOES NOT HOLD THE VEHICLE, DOES NOT APPLY, DOES NOT RELEASE USING THE PARKING BRAKE SWITCH OR AUTO-RELEASE FUNCTION

For schematics and connectors, refer to Wiring Diagrams Cell 42.

Normal Operation and Fault Symptoms

When the ABS module receives the parking brake apply or release request, the ABS module supplies voltage to the parking brake actuator motors. The ABS module also monitors the current drawn by the actuator motors to determine when the brake pads contact the brake disc, to determine when the appropriate clamping force is applied to the brake disc, and to determine when the brake pads are retracted to the home position. A fault or problem with the HS-CAN causes the inability to release the parking brake. The ABS module runs self-tests before, during and after the apply or release request. These self-checks are performed to determine parking brake functionality. High resistance in the actuator motor circuit, a short to ground, a short to voltage, an open circuit, a mechanical or electrical failure of the actuator motor, or an internal ABS module fault can cause one or more of these self-checks to fail, causing the ABS module to set one or more diagnostic trouble codes (DTCs). The actuator motors have a serviceable jumper harness connecting the actuator motor to the body wire harness at C410 for the left-hand actuator motor and the right-hand actuator motor.

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
ABS C1034:97 Parking Brake: Component or System Operation Obstructed or Blocked This DTC is set if the parking brake switch remains in the Release or Apply position longer than the specified amount of time continuously while the vehicle is at rest.
ABS C1A43:98 Engine Power: Component or System Overheating This DTC is set when the ABS module field-effect transistor temperature reaches the specified limit.
ABS C2005:1B Right Actuator: Circuit Resistance Above Threshold This DTC is set in continuous memory and on demand if, during the apply (clamp) command, the measured resistance in the actuator motor circuit is above the predetermined threshold.
ABS C2006:1B Left Actuator: Circuit Resistance Above Threshold This DTC is set in continuous memory and on demand if, during the apply (clamp) command, the measured resistance in the actuator motor circuit is above the predetermined threshold.
ABS C2005:71 Right Actuator: Actuator Stuck This DTC is set in continuous memory and on demand if, during the apply or release command, the ABS module does not detect movement of the actuator motor.
ABS C2006:71 Left Actuator: Actuator Stuck This DTC is set in continuous memory and on demand if, during the apply or release command, the ABS module does not detect movement of the actuator motor.
ABS C2007:13 Right Motor: Circuit Open This DTC is stored in continuous memory and on demand if the ABS module detects a current difference between the positive side and the negative side of the actuator motor.
ABS C2008:13 Left motor: circuit open This DTC is stored in continuous memory and on demand if the ABS module detects a current difference between the positive side and the negative side of the actuator motor.
ABS C2007:1C Right Motor: Circuit Voltage Out of Range This DTC is stored in continuous memory and on demand if the ABS module detects a short to ground or a short to voltage on the drive motor circuit.
ABS C2008:1C Left motor: circuit voltage out of range This DTC is stored in continuous memory and on demand if the ABS module detects a short to ground or a short to voltage on the drive motor circuit.
ABS C2007:92 Right Motor: Performance or Incorrect Operation This DTC is stored in continuous memory and on demand if the ABS module detects current greater than 23 amps after application or release request, detects a motor control mismatch (power instead of ground or ground instead of power), or detects power loss exceeding the specified threshold during the application or release function.
ABS C2008:92 Left motor: performance or incorrect operation This DTC is stored in continuous memory and on demand if the ABS module detects current greater than 23 amps after application or release request, detects a motor control mismatch (power instead of ground or ground instead of power), or detects power loss exceeding the specified threshold during the application or release function.
HVAC B1541:11 Auto Hold indicator: short to ground This fault code is stored in continuous memory and on demand if the HVAC module detects a short to ground. The Autohold indicator will not illuminate and the Autohold button function is disabled.
HVAC B1541:15 Auto Hold indicator: short to battery or open circuit This fault code is stored in continuous memory and on demand if the HVAC module detects a short to ground. The Autohold indicator will be illuminated at all times and the Autohold button function will be deactivated.

Possible Sources

  • Automatic release functional requirements are not met
  • BCM concern
  • PCM Concern
  • Wiring, Terminals or Connectors
  • Brake Caliper
  • Parking Brake Actuator Motor
  • ABS Module
  • parking brake switch
E1 CHECK ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)
  • The ignition is on.
  • Using the diagnostic scan tool, perform a self-test of the ABS module.

Are any ABS module Diagnostic Trouble Codes (DTCs) listed in the DTC Fault Trigger Conditions table present?
Yes GO to E9
No If any "bad data" or "no communication" Diagnostic Trouble Codes (DTCs) are present, GO to the ABS Module DTC table.
If no "bad data" or "no communication" Diagnostic Trouble Codes (DTCs) are present, GO to E2.
E2 CHECK AUTOMATIC RELEASE FUNCTIONALITY
  • With the transmission in PARK, apply the parking brake.
  • Fasten the driver seat belt.
  • Close the driver's door.
  • Start the engine.
  • Select DRIVE.
  • NOTE: When the accelerator pedal is depressed, the parking brake releases automatically. Keep depressing the accelerator pedal until the parking brake releases and the vehicle begins to move.

Does the parking brake release automatically when the accelerator pedal is depressed?
Yes The system is currently operating correctly. The concern may have been related to the automatic release functional requirements not being met. EXPLAIN the automatic release functional requirements to the customer.
REFER TO: Parking Brake - Overview (206-05 Parking Brake and Actuation, Description and Operation).
No GO to E3
E3 CHECK HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)
  • Select PARK.
  • Ignition OFF.
  • The ignition is on.
  • Using the scan tool, perform the HVAC module self-test.
  • Retrieve and record all HVAC module Diagnostic Trouble Codes (DTCs).

Are HVAC Diagnostic Trouble Codes (DTCs) B1541:11 or B1541:15 present?
Yes GO to E4
No GO to E9
E4 CHECK AUTOHOLD SWITCH IN THE ON AND NOT PRESSED POSITIONS
  • Ignition OFF.
  • Disconnect the EPB switch C3675.
  • Press the Autohold ON and OFF button.
  • Action:

    Auto Hold Switch


    Positive lead Measurement/Action Negative lead
    C3675-11 Component side C3675-2 Component side

    Autohold indicator


    Positive lead Measurement/Action Negative lead
    C3675-5 Component side C3675-2 Component side

Is the resistance less than 3 ohms?
Yes GO to E5
No Replace the EPB switch.
REFER TO: Parking Brake Switch (206-05 Parking Brake and Actuation, Removal and Installation).
E5 CHECK PARKING BRAKE SWITCH GROUND CIRCUIT FOR OPEN
  • Ignition OFF.
  • Action:
    Positive lead Measurement/Action Negative lead
    C3675-2 Ground

Is the resistance less than 3 ohms?
Yes GO to E6
No REPAIR the circuit.
E6 CHECK PARKING BRAKE SWITCH CIRCUITS FOR OPEN
  • Ignition OFF.
  • Disconnect the HVAC module C228A.
  • Action:
    Positive lead Measurement/Action Negative lead
    C228A-6 C3675-5
    C228A-5 C3675-11

Is the resistance less than 3 ohms?
Yes GO to E7
No REPAIR the faulty circuit.
E7 CHECK PARKING BRAKE SWITCH CIRCUITS FOR SHORT TO GROUND
  • Ignition OFF.
  • Action:
    Positive lead Measurement/Action Negative lead
    C228A-6 Ground
    C228A-5 Ground

Is the resistance greater than 10000 ohms?
Yes GO to E8
No REPAIR the faulty circuit.
E8 CHECK PARKING BRAKE SWITCH CIRCUITS FOR SHORT TO BATTERY VOLTAGE
  • The ignition is on.
  • Action:
    Positive lead Measurement/Action Negative lead
    C228A-6 Ground
    C228A-5 Ground

Is any voltage present?
Yes REPAIR the faulty circuit.
No GO to E17
E9 CHECK DRIVE MOTOR CIRCUITS FOR OPEN
  • Ignition OFF.
  • Disconnect the ABS module C155.
  • Disconnect the suspect parking brake actuator motor electrical connector.
  • For the right-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4479-1 C155-3
    C4479-2 C155-2
  • For the left-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4478-1 C155-12
    C4478-2 C155-13

Is the resistance less than 3 ohms?
Yes If DTCs C2007:13 or C2008:13 are the only Diagnostic Trouble Codes (DTCs) present, GO to E13.
If other Diagnostic Trouble Codes (DTCs) are present, GO to E10.
No CHECK the actuator motor harness and connectors for correct routing, damaged connectors, spread terminals, bent or pushed-in pins, or any signs of corrosion. INSTALL a new jumper harness as necessary.
If the jumper harness is OK, REPAIR the circuit.
E10 CHECK DRIVE MOTOR CIRCUITS FOR SHORT TO GROUND
  • For the right-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4479-1 Ground
    C4479-2 Ground
  • For the left-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4478-1 Ground
    C4478-2 Ground

Is the resistance greater than 10000 ohms?
Yes GO to E11
No CHECK the actuator motor harness and connectors for correct routing, damaged connectors, spread terminals, bent or pushed-in pins, or any signs of corrosion. INSTALL a new jumper harness as necessary.
If the jumper harness is OK, REPAIR the circuit.
E11 CHECK DRIVE MOTOR CIRCUITS FOR SHORT TOGETHER
  • For the right-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4479-1 C4479-2
  • For the left-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4478-1 C4478-2

Is the resistance greater than 10000 Ohms?
Yes GO to E12
No CHECK the actuator motor harness and connectors for correct routing, damaged connectors, spread terminals, bent or pushed-in pins, or any signs of corrosion. INSTALL a new jumper harness as necessary.
If the jumper harness is OK, REPAIR the circuit.
E12 CHECK DRIVE MOTOR CIRCUITS FOR SHORT TO VOLTAGE
  • The ignition is on.
  • For the right-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4479-1 Ground
    C4479-2 Ground
  • For the left-hand actuator motor, measure:
    Click to display connectors
    Positive lead Measurement/Action Negative lead
    C4478-1 Ground
    C4478-2 Ground

Is there voltage present?
Yes CHECK the actuator motor harness and connectors for correct routing, damaged connectors, spread terminals, bent or pushed-in pins, or any signs of corrosion. INSTALL a new jumper harness as necessary.
If the jumper harness is OK, REPAIR the circuit.
No GO to E13
E13 CHECK BRAKE CALIPER BALL SCREW DRIVE
  • Ignition OFF.
  • Remove the suspect drive motor.
    REFER TO: Parking Brake Actuator Motor (206-05 Parking Brake and Actuation, Removal and Installation).
  • Using a torque wrench, rotate the brake caliper ball screw drive counterclockwise. It must not take more than 5 N·m to rotate the ball screw.

Does the ball screw rotate with a turning effort less than 5 N·m?
Yes GO to E14
No INSTALL a new brake caliper.
REFER TO: Brake Caliper (206-04 Rear Disc Brake, Removal and Installation).
E14 CHECK DRIVE MOTOR RESISTANCE
  • Ignition OFF.
  • Action:
    Click to display the connectors
    Positive lead Measurement/Action Negative lead
    Pin 1 of the suspect drive motor electrical connector, component side Pin 2 of the suspect drive motor electrical connector, component side

Is the resistance less than 500 Ohms?
Yes GO to E15
No INSTALL a new parking brake actuator motor.
REFER TO: Parking Brake Actuator Motor (206-05 Parking Brake and Actuation, Removal and Installation).
E15 CHECK ALL ELECTRICAL CONNECTIONS
  • Ignition OFF.
  • Disconnect the ABS module and the suspect parking brake drive motor.
  • Using a good light source, inspect the ABS module C155, parking brake drive motor C4478 or C4479 for the following:
    • corrosion - install a new connector or terminal and clean the module contacts
    • damaged or bent pins - install new terminals or pins
    • pushed-out pins - install new pins as necessary
    • spread terminals - install new terminals as necessary

Are there no signs of corrosion, damaged terminals, bent terminals, pushed-out terminals or stretched terminals in the connectors?
Yes GO to E16
No REPAIR the connector or terminals.
For wiring diagrams and connector information, refer to Wiring Diagrams, cell 5.
E16 CHECK ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION
  • Connect the ABS module C155. Make sure that it is correctly installed and latched.
  • Connect the suspect parking brake drive motor connector. Make sure that it is fully seated and latched.
  • The ignition is on.
  • Carry out the following steps to restore the functionality of the parking brake switch:
    • Set the switch to the APPLY position.
    • Release the switch to the NEUTRAL position.
    • Set the switch to the RELEASE position.
    • Release the switch to the NEUTRAL position.
    • Repeat steps 4.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, STOP this test and FOLLOW the service article instructions.
If no Technical Service Bulletin (TSB) exists for this concern, INSTALL a new ABS module.
REFER TO: Anti-Lock Brake System (ABS) Module - Vehicles With: Vacuum Brake Booster (206-09 Anti-Lock Brake System (ABS) and Stability Control System, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
E17 CHECK HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE OPERATION
  • Connect the HVAC module C228A. Make sure that it is fully seated and latched.
  • Connect the EPB switch C3675. Make sure it is correctly installed and clicks into place.
  • With the transmission in PARK, apply the parking brake.
  • Fasten the driver seat belt.
  • Close the driver's door.
  • Start the engine.
  • Select DRIVE.
  • NOTE: When the accelerator pedal is depressed, the parking brake releases automatically. Keep depressing the accelerator pedal until the parking brake releases and the vehicle begins to move.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service information: TSB, GSB, SSM or FSA. If a service article exists for this condition, STOP this test and FOLLOW the service article instructions.
If no Technical Service Bulletin (TSB) exists for this condition, INSTALL a new HVAC module.
REFER TO: Heating, Ventilation and Air Conditioning (HVAC) Module (412-00 Climate Control System - General Information, Removal and Installation).
No The system is currently operating correctly. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
PINPOINT TEST F: B1111:54

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
ABS B1111:54 Electric Parking Brake Activation: Calibration Missing This DTC is only present when a new ABS module is installed or the ABS module configuration is changed.

Possible Sources

  • ABS configured incorrectly
  • The EPB Apply and Release procedure has not been performed.
F1 CHECK VEHICLE HISTORY
  • Check the vehicle history for recent service actions involving the ABS.

Has any recent ABS service been performed?
Yes GO to F2
No GO to F3
F2 PERFORM ABS SELF-TEST
  • Using the diagnostic scan tool, perform the ABS self-test.

Are any other ABS module diagnostic trouble codes (DTCs) set?
Yes Diagnose the other ABS diagnostic trouble codes (DTCs) first. Refer to the ABS DTC Chart in this section.
No GO to F3
F3 PERFORM EPB INITIALIZATION PROCEDURE
  • Using the diagnostic scan tool, perform the EPB initialization procedure.
  • NOTE: To restore parking brake system operation and to clear diagnostic trouble codes (DTCs), the parking brake switch must be moved through all 3 positions twice within 5 seconds. Apply and release the parking brake switch as follows, pausing approximately half a second each time the switch is in the NEUTRAL position:
    • APPLY
    • NEUTRAL - pause half a second
    • RELEASE
    • NEUTRAL - pause half a second
    • APPLY
    • NEUTRAL - pause half a second
    • RELEASE
    • NEUTRAL
  • Ignition OFF.
  • The ignition is on.
  • Using the diagnostic scan tool, clear the ABS diagnostic trouble code.
  • Using the diagnostic scan tool, perform the ABS self-test.

Is DTC B1111:54 present?
Yes GO to F4
No The system is now operating correctly. The EPB Apply and Release program has cleared the DTC.
F4 PERFORM ABS PMI PROCEDURE

  • REFER TO: Module Programming (418-01 Module Configuration, General Procedures).
  • Ignition OFF.
  • The ignition is on.
  • Using the diagnostic scan tool, perform the ABS self-test.

Is DTC B1111:54 present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSB), GSB, SSM or FSA. If a service article exists for this condition, STOP this test and FOLLOW the service article instructions.
If no service article resolves the condition, INSTALL a new ABS module.
REFER TO: Hydraulic Control Unit (HCU) - Vehicles With: Vacuum Brake Booster (206-09 Anti-Lock Control System (ABS) and Stability Control System, Removal and Installation).
No The system is now operating correctly. An incorrectly configured ABS module set the diagnostic trouble code.
PINPOINT TEST G: C2007:96, C2008:96

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
ABS C2007:96 Right motor: internal component failure The ABS module checks the parking brake drive motors by sending voltage pulses through the circuits and motors. This DTC sets when the test results are outside the expected range.
ABS C2008:96 Left motor: internal component failure The ABS module checks the parking brake drive motors by sending voltage pulses through the circuits and motors. This DTC sets when the test results are outside the expected range.

Possible Sources

  • Parking Brake Actuator Motor
G1 PERFORM ABS SELF-TEST
  • Using the diagnostic scan tool, perform the ABS self-test.

Are any diagnostic trouble codes (DTCs) other than C2007:96 or C2008:96 set?
Yes Diagnose the other ABS diagnostic trouble codes (DTCs). Refer to the ABS DTC Chart in this section.
No GO to G2
G2 CLEAR THE DIAGNOSTIC TROUBLE CODE
  • Using the diagnostic scan tool, clear the ABS diagnostic trouble codes (DTCs).
  • Ignition OFF.
  • The ignition is on.
  • Using the diagnostic scan tool, perform the ABS self-test.

Are diagnostic trouble codes (DTCs) C2007:96 or C2008:96 set?
Yes Replace the suspect parking brake drive motor.
REFER TO: Parking Brake Drive Motor (206-05 Parking Brake and Drive, Removal and Installation).
No The system is currently operating correctly.
PINPOINT TEST H: C2005:04 OR C2006:04

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
ABS C2005:04 Right Actuator: Internal Control Module Failure This DTC sets when an apply or release request is pending, but the ABS module cannot process the request due to an internal fault.
ABS C2006:04 Left Actuator: Internal Control Module Failure This DTC sets when an apply or release request is pending, but the ABS module cannot process the request due to an internal fault.

Possible Sources

  • ABS module.
  • The EPB Apply and Release procedure has not been performed.
H1 PERFORM EPB APPLY AND RELEASE PROCEDURE
  • Using the diagnostic scan tool, perform the EPB apply and release procedure.
  • Ignition OFF.
  • The ignition is on.
  • Using the diagnostic scan tool, clear the ABS diagnostic trouble code.
  • Using the diagnostic scan tool, perform the ABS self-test.

Are diagnostic trouble codes (DTCs) C2005:04 or C2006:04 set?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSB), GSB, SSM or FSA. If a service article exists for this condition, STOP this test and FOLLOW the service article instructions.
If no service article resolves the condition, INSTALL a new ABS module.
REFER TO: Anti-Lock Brake System (ABS) Module - Vehicles With: Vacuum Brake Booster (206-09 Anti-Lock Control System (ABS) and Stability Control System, Removal and Installation).
No The system is now operating correctly. The EPB Apply and Release program has cleared the DTC.
PINPOINT TEST I: B1111:53

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
ABS B1111:53 Electric Parking Brake Activation: Deactivated This DTC sets when both parking brake drives do not reset upon exiting the Service Mode procedure. This is most likely caused by an interruption of the Service Mode procedure.

Possible Sources

  • ABS module.
  • The EPB Apply and Release procedure has not been performed.
I1 PERFORM EPB APPLY AND RELEASE PROCEDURE
  • Using the diagnostic scan tool, perform the EPB apply and release procedure.
  • Ignition OFF.
  • The ignition is on.
  • Using the diagnostic scan tool, clear the ABS diagnostic trouble code.
  • Using the diagnostic scan tool, perform the ABS self-test.

Is DTC B1111:53 set?
Yes Exit the Service Mode.
No The system is now operating correctly. The EPB Apply and Release program has cleared the DTC.
PINPOINT TEST J: C1034:78

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
ABS C1034:78 Parking Brake: Incorrect Alignment or Adjustment This DTC is stored in permanent memory if the parking brake component software sends an indication that the drive position is incorrect.

Possible Sources
J1 PERFORM ABS SELF-TEST
  • The ignition is on.
  • Using the diagnostic scan tool, read the ABS diagnostic trouble code.

Is DTC C1034:78 set?
Yes Using a diagnostic scan tool, clear the DTC.
No The system is currently operating correctly.
PINPOINT TEST K: PARKING BRAKE MESSAGES ARE DISPLAYED IN THE MESSAGE CENTER

Possible Sources

  • Parking brake system in Service Mode.
  • An invalid parking brake state is stored in memory.
  • ABS module.
  • The EPB Apply and Release procedure has not been performed.
K1 PERFORM ABS SELF-TEST
  • Using the diagnostic scan tool, perform the ABS self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes Diagnose the other ABS diagnostic trouble codes (DTCs). Refer to the ABS DTC Chart in this section.
No GO to K2
K2 PERFORM EPB APPLY AND RELEASE PROCEDURE
  • Using the diagnostic scan tool, perform the EPB apply and release procedure.
  • Ignition OFF.
  • The ignition is on.
  • Using the diagnostic scan tool, clear the ABS diagnostic trouble code.
  • Using the diagnostic scan tool, perform the ABS self-test.

Are any diagnostic trouble codes (DTCs) present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSB), GSB, SSM or FSA. If a service article exists for this condition, STOP this test and FOLLOW the service article instructions.
If no service article resolves the condition, INSTALL a new ABS module.
REFER TO: Hydraulic Control Unit (HCU) - Vehicles With: Vacuum Brake Booster (206-09 Anti-Lock Control System (ABS) and Stability Control System, Removal and Installation).
No The system is now operating correctly. The EPB Apply and Release program has cleared the DTC.
PINPOINT TEST L: U2002:00

DTC Fault Trigger Conditions

Trouble Code Description Fault Trigger Condition
ABS U2002:00 Switch: no sub-type information This DTC sets when roller table mode is detected. Informational DTC only.

Possible Sources
L1 PERFORM ABS SELF-TEST
  • The ignition is on.
  • Using the diagnostic scan tool, read the ABS diagnostic trouble code.

Is DTC U2002:00 set?
Yes Using a diagnostic scan tool, clear the DTC.
No The system is currently operating correctly.

Test yourself

A quick Ford Escape quiz: every answer comes with an explanation and a link to the manual page.