Ford Fusion: Starting System - 1.5L EcoBoost (118 kW/160 HP) - I4 / Starting System. Diagnosis and Testing

Inspection and Verification

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).

1
Verify the customer concern.
2
Check the battery for loose, damaged or corroded connections.
3
Check the battery condition and state of charge.
Refer to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).
4
Remove the accessory drive belt.
Refer to: Accessory Drive Belt (303-05A Accessory Drive, 1.5 L EcoBoost (118 kW/160 L HP) - I4, Removal and Installation).
Make sure the crankshaft and each of the components driven by the accessory drive belt rotate freely and are not seized or damaged.
5
If any aftermarket accessories have been added to the vehicle, make sure they are correctly connected.
6
If an obvious cause for an observed or reported concern is found, correct it (if possible) before proceeding.
7
Using the diagnostic scan tool, retrieve all Diagnostic Trouble Codes (DTCs). Refer to the appropriate DTC chart in this section.

Diagnostic Trouble Code Charts

BCM Diagnostic Trouble Code Chart

Trouble Code	Description	Action
C113A:11	PCM Wake-Up Signal: Short to Ground	GO to Pinpoint Test C
C113A:15	PCM wake-up signal: short to battery or open circuit	GO to Pinpoint Test C
All other Diagnostic Trouble Codes	-	REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).

PCM Diagnostic Trouble Code Chart

Trouble Code	Description	Action
P06E4	Module Wake-Up Circuit Characteristics	RETRIEVE and RECORD all DTCs. If BCM DTC C113A:11 or C113A:15 is present, GO to Diagnostic Test C. Clear all diagnostic trouble codes (DTCs). REPEAT the PCM self-test. If the DTC returns, CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If no TSBs address the concern, Click here to access the guided routine (PCM). Internet Explorer version 11 or later is required to perform this Pinpoint test.
P06E9	Engine Starter Motor Performance	If the engine cranks, refer to the Powertrain Control/Emissions Diagnostics (PC/ED) manual, Powertrain section. If the engine does not crank, GO to Diagnostic Test A.
P0706	Transmission Range Sensor "A" Circuit Range/Performance	Refer to: Automatic Transmission - 1.5 L EcoBoost (118 kW/160 L PS) - I4 (307-01A Automatic Transmission - 6-Speed Automatic Transmission 6F35, Diagnosis and Testing).
P0707	Transmission Range Sensor "A" Circuit Low Signal	Refer to: Automatic Transmission - 1.5 L EcoBoost (118 kW/160 L PS) - I4 (307-01A Automatic Transmission - 6-Speed Automatic Transmission 6F35, Diagnosis and Testing).
P0708	Transmission Range Sensor "A" Circuit High Signal	Refer to: Automatic Transmission - 1.5 L EcoBoost (118 kW/160 L PS) - I4 (307-01A Automatic Transmission - 6-Speed Automatic Transmission 6F35, Diagnosis and Testing).
P162F	Starter Disabled - Engine Cranking Time Too Long	This DTC is set in the PCM when the engine has cranked for more than 60 seconds without giving the starter enough time to cool. Diagnose all other DTCs and symptoms. Check the charging system voltage and correct as necessary. Clear the DTC.
P2534	Ignition Switch Run/Start Circuit Low	GO to Pinpoint Test D
P2535	Ignition Switch RUN/START Circuit - High Signal Level	GO to Pinpoint Test D
All other Diagnostic Trouble Codes	-

RTM DTC Chart

Trouble Code	Description	Action
All DTCs	-	SEE: Tire Pressure Monitoring System (TPMS) (204-04B Tire Pressure Monitoring System (TPMS), Diagnosis and Testing).

Symptom Chart

Symptom Chart: Starting System

Symptom Chart

Condition	Possible Sources	Action
Engine Does Not Crank	Refer to Pinpoint Test.	GO to Pinpoint Test A
Engine Cranks Slowly	Refer to Pinpoint Test.	PERFORM the starter system component test. REFER TO Starter - Positive Circuit Test in this section.
Engine Cranks But Does Not Start	Fuses PCM Fuel pump Fuel Pump Relay Start/Crank Relay Starter Motor Wiring	Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.
Abnormal Starter Motor Noise	Refer to Pinpoint Test.	GO to Pinpoint Test B
Starter Motor Cranks but Engine Does Not Crank	Starter motor	CHECK the starter mounting and engagement. REPAIR as necessary.
Starter Motor Cranks but Engine Does Not Crank	Damaged Flexplate	CHECK the flexplate for damaged, missing or worn teeth. REPAIR as necessary.
Starter Motor Does Not Disengage from Flexplate	Starter Relay Wiring, Terminals or Connectors	REMOVE the starter relay. If the engine stops cranking, INSTALL a new relay. If the engine continues to crank, REPAIR the CDC35 (BU/WH) circuit for a short to battery voltage.
Remote start does not work	Remote start function is not enabled Passive Key Hood switch input PCM Wiring, Terminals or Connectors	REFER TO: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).
Remote start has poor range	Passive key or battery Aftermarket systems High-power devices Television/radio transmitting towers RTM	Diagnose RKE transmitter poor range, REFER TO: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing).

Symptom Chart: Auto-Start-Stop System

Symptom Chart

Condition	Possible Sources	Action
Auto-Start-Stop System Does Not Operate or Operates Incorrectly	One or more of the required entry criteria for the Auto Start-Stop operation are not met.	REVIEW the owner's guide and REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for proper system operation.
	Electronic Control Modules	RETRIEVE all Continuous Memory Diagnostic Trouble Codes (CMDTCs). For PCM DTC information, REFER to the PCM DTC Chart in this section. For BCM DTC information, REFER to the BCM DTC Chart in this section. For all other Diagnostic Trouble Codes (DTCs) REFER TO: Diagnostic Trouble Code (DTC) Charts (100-00 General Information, Diagnosis and Testing).
	Vehicle battery	Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. Section 3 Symptom Chart.
Auto-Start-Stop System Cannot Be Disabled by Driver	Wiring, Terminals or Connectors Automatic Start-Stop Switch FCIM	For circuit and connector information, refer to the Wiring Diagrams section, cell 40. REFER to the BCM DTC Chart in this section. Refer to the appropriate section in group 415 for the Auto-Start-Stop switch.

Pinpoint Test(s)

Engine Does Not Crank

For circuit and connector information, refer to Wiring Diagrams Cell 20.

Normal Operation and Fault Symptoms

REFER TO: Starting System - System Operation and Component Description (303-06A Starting System - 1.5 L EcoBoost (118 kW/160 L hp) - I4, Description and Operation).

DTC Fault Trigger Conditions

Trouble Code	Description	Fault Trigger Conditions
P06E9	Engine Starter Motor Performance	No engine cranking detected during start attempt

Possible Sources

Battery
Battery Cables
PCM
Starter motor
BJB Starter Relay

Visual Inspection and Preliminary Diagnosis

Inspect the run/start relay.
Inspect the high-current connections at the BJB.
Check BJB fuse 84 (10A).
Check BCM fuse 12 (7.5A).
Inspect the Integrated Key Transmitter (IKT).

DIAGNOSTIC TEST A: ENGINE DOES NOT CRANK

A1 INSPECT AND VERIFY CONCERN

Perform the Inspection and Verification procedure in this section.

Was an obvious cause for the observed or reported concern found?

Yes

If necessary, repair the cause.

GO to A2

A2 CHECK THE MESSAGE CENTER FOR KEY NOT DETECTED MESSAGE

NOTE: There are certain areas inside the vehicle where the IA key may not be detected, and the message center displays NO KEY DETECTED. If the IA key is in the far outer edges of the interior (for example, in the door trim pocket or above the sun visor), it may not be detected. Move the IA key to another location and try to start the vehicle again. Check the message displayed in the message center when pressing the ignition switch - start button.

Is NO KEY DETECTED displayed?

Yes

Diagnose the NO KEY DETECTED concern.
REFER TO: Passive Anti-Theft System (PATS) (419-01B Passive Anti-Theft System (PATS), Diagnosis and Testing).

GO to A3

A3 CHECK THE BCM (BODY CONTROL MODULE), IPC (INSTRUMENT PANEL CLUSTER) AND PCM (POWERTRAIN CONTROL MODULE) NETWORK TEST

The ignition is on.

Using a scan tool, perform the network test.

Did the BCM, IPC and PCM pass the network test?

Yes

GO to A4

No	REFER TO: Communication Network (418-00 Communication Network, Diagnosis and Testing).

A4 RETRIEVE DIAGNOSTIC TROUBLE CODES (DTCS)

Using the diagnostic scan tool, perform a self-test of the BCM and PCM.

Are any diagnostic trouble codes (DTCs) present?

Yes

For all BCM Diagnostic Trouble Codes (DTCs), refer to the BCM DTC chart in this section.
For PCM DTC P06E9, GO to A5.
For all other PCM DTCs:

GO to A5

A5 CHECK STOP LAMP OPERATION

While observing the stop lamps, depress the brake pedal.

Do the stoplamps illuminate?

Yes

GO to A6

No	Diagnose all stop lamps inoperative. REFER TO: Stop Lamps (417-01 Exterior Lighting, Diagnosis and Testing).

A6 CHECK BRAKE PEDAL POSITION (BOO1) PID (PARAMETER IDENTIFICATION)

Using a diagnostic scan tool, view the PCM Parameter Identifications (PIDs).

Monitor the PCM B001 PID while depressing the brake pedal.

Is the PID reading?

Yes

GO to A8

GO to A7

A7 CHECK BPP (BRAKE PEDAL POSITION) VOLTAGE SWITCHING CIRCUIT AT THE PCM

Ignition OFF.

Disconnect the PCM C1915B.

While depressing the brake pedal, measure:
Click to display connectors

Positive lead Measurement/Action Negative lead

C1915B-66 Ground

Is the voltage greater than 11 volts?

Yes

GO to A21

No	REPAIR the circuit.

A8 CHECK BCM (BODY CONTROL MODULE) IGN_SW_STATE PID (PARAMETER IDENTIFICATION)

Using the diagnostic scan tool, view the BCM parameter identification (PID) data.

Make sure the transmission is in PARK or NEUTRAL.

Monitor the BCM PID IGN_SW_STATE while pressing the ignition switch - start button and the brake pedal.

Does the PID change from OFF to RUN when the ignition switch - start button and brake pedal are pressed?

Yes

GO to A9

No	DIAGNOSE No power. REFER TO: Steering Wheel and Column Electrical Components (211-05 Steering Wheel and Column Electrical Components, Diagnosis and Testing).

A9 CHECK PCM (POWERTRAIN CONTROL MODULE) IN GEAR - TRANSMISSION APPLIES LOAD TO ENGINE (IN_GEAR) PID (PARAMETER IDENTIFICATION)

Using a diagnostic scan tool, view the PCM Parameter Identifications (PIDs).

Monitor the PCM PID IN_GEAR while placing the shift selector in PARK, then NEUTRAL.

Does the PID show "No" in both positions?

Yes

GO to A10

No	Refer to: Automatic Transmission - 1.5 L EcoBoost (118 kW/160 L PS) - I4 (307-01A Automatic Transmission - 6-Speed Automatic Transmission 6F35, Diagnosis and Testing).

A10 CHECK PCM (POWERTRAIN CONTROL MODULE) ENGINE CRANK (ENG_CRANK) WIRE PID (PARAMETER IDENTIFICATION)

Make sure the transmission is in PARK or NEUTRAL.

Using a diagnostic scan tool, view the PCM Parameter Identifications (PIDs).

Monitor the PCM PID ENG_CRANK while pressing the ignition switch - start button and the brake pedal.

Does the PID change from inactive to active?

Yes

GO to A11

GO to A21

A11 CHECK STARTER RELAY OPERATION

NOTICE: The following step uses a test light to simulate normal circuit loads. Use only the test light recommended in the Special Service Tools table at the beginning of this section. To avoid damaging connector terminals, use the Flex Probe Kit to connect the test light probe to the vehicle. Do not use the test light probe directly on any connector.

Remove the BJB starter relay.

Action:

Positive lead Measurement/Action Negative lead

BJB starter relay Pin 1 BJB starter relay Pin 2

Make sure the transmission is in PARK or NEUTRAL.

While holding the ignition switch - start button and the brake pedal, observe the indicator lamp.

Does the indicator lamp come on when the ignition switch - start button is pressed?

Yes

GO to A12

No	GO to A19.

A12 CHECK THE VOLTAGE AT THE STARTER RELAY

Action:

Positive lead Measurement/Action Negative lead

BJB starter relay Pin 3 Ground

Is the voltage greater than 11 volts?

Yes

GO to A13

No	CHECK BJB fuse 84 (10A) is OK. If OK, REPAIR the circuit for an open. If not OK, REFER to the wiring diagrams to determine possible causes of a short circuit.

A13 CHECK STARTER OPERATION AT THE STARTER RELAY

Ignition OFF.

With the transmission in PARK or NEUTRAL, momentarily jumper the fused circuit:

Positive lead Measurement/Action Negative lead

BJB starter relay Pin 3 BJB starter relay Pin 5

Did the starter engage and the engine start?

Yes

INSTALL a new starter relay.

GO to A14

A14 CHECK THE BATTERY GROUND CABLES

Action:

Positive lead Measurement/Action Negative lead

Ground G108

Ground G109

Is the voltage greater than 11 volts?

Yes

GO to A15

No	CLEAN or INSTALL new negative battery cables, as necessary. REFER TO: Battery Cables - 1.5 L EcoBoost (118 kW/160 L hp) - I4 (414-01 Battery, Mounting and Cables, Removal and Installation).

A15 CHECK THE STARTER GROUND

Action:

Positive lead Measurement/Action Negative lead

Starter motor housing

Is the voltage greater than 11 volts?

Yes

GO to A16

No	CLEAN the starter mounting flange and ENSURE the starter is installed correctly. REFER TO: Starter (303-06A Starting System - 1.5 L EcoBoost (118 kW/160 L hp) - I4, Removal and Installation).

A16 CHECK THE VOLTAGE AT THE STARTER

Action:
Click to display the connectors

Positive lead Measurement/Action Negative lead

C197A-1 ("B" terminal) Ground

Is the voltage greater than 11 volts?

Yes

GO to A17

No	INSTALL a new positive battery cable. REFER TO: Battery Cables - 1.5 L EcoBoost (118 kW/160 L hp) - I4 (414-01 Battery, Mounting and Cables, Removal and Installation).

A17 CHECK FOR PROPER STARTER OPERATION

In this section, check the starter positive circuit.

Was an obvious cause found?

Yes

If necessary, repair the cause.

GO to A18

A18 CHECK FOR A STARTER CRANK INPUT AT THE STARTER

Connect the Starter Relay BJB.

Disconnect the starter solenoid C197B. .

While holding the key in the START position, measure:
Click to display connectors

Positive lead Measurement/Action Negative lead

C197B-1 ("S" terminal) Ground

Is the voltage greater than 11 volts?

Yes

CLEAN the starter solenoid "S" terminal and starter solenoid connector. CHECK the wiring and starter for loose or intermittent connection.

No	REPAIR the circuit for an open.

A19 CHECK THE PCM (POWERTRAIN CONTROL MODULE) STARTER RELAY CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Disconnect the PCM C1915B.

Action:
Click to display the connectors

Positive lead Measurement/Action Negative lead

C1915B-43 Ground

C1915B-62 Ground

Is the resistance greater than 10000 ohms?

Yes

GO to A20

No	REPAIR the faulty circuit.

A20 CHECK THE PCM (POWERTRAIN CONTROL MODULE) STARTER RELAY CIRCUITS FOR AN OPEN

Action:
Click to display the connectors

Positive lead Measurement/Action Negative lead

C1915B-43 BJB starter relay Pin 2

C1915B-62 BJB starter relay Pin 1

Is the resistance less than 3 ohms?

Yes

GO to A21

No	REPAIR the faulty circuit.

A21 CHECK PCM (POWERTRAIN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all PCM connectors.

Repair:
- corrosion (install new connectors or terminals - clean the module contacts)
- damaged or bent terminals/pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Connect the PCM connectors. Make sure they are fully seated and locked.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK in OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, STOP this test and FOLLOW the TSB instructions. If no TSBs apply to this concern,
Ford Fusion. Starting System. Diagnosis and Testing

Click here to access the guided routine (PCM). Ford Fusion. Starting System. Diagnosis and Testing

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No	The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal issues.

Abnormal Starter Motor Noise

Normal Operation and Fault Symptoms

Proper starter operation depends on correct starter installation to the engine, correct engagement of the starter ring gear with the flexplate, and correct operation of the starter assembly (internal gears, bearings).

Possible Sources

Engine
Starter motor
Starter Mounting

Visual Inspection and Preliminary Diagnosis

Inspect the starter.
Inspect the starter mounting.

DIAGNOSTIC TEST B: ABNORMAL STARTER NOISE

B1 CHECK THE STARTER MOUNTING

Inspect the starter mounting bolts for looseness.

Is the starter installed correctly?

Yes

GO to B2

No	INSTALL the starter correctly. REFER TO: Starter (303-06A Starting System - 1.5 L EcoBoost (118 kW/160 L hp) - I4, Removal and Installation).

B2 CHECK STARTER NOISE

Ignition OFF.

Connect a remote starter switch between the starter solenoid C197A-1 (terminal "B") and C197B-1 (terminal "S").

Activate the starter and make sure the noise is caused by starter operation.

Is the noise caused by starter engagement?

Yes

REFER TO: Starter Pinion and Flywheel Ring Gear Inspection (303-06A Starting System - 1.5 L EcoBoost (118 kW/160 L hp) - I4, General Procedures).

No	REFER TO: Engine (303-00 Engine System - General Information, Diagnosis and Testing). Continue diagnosis.

C113A:11 or C113A:15

For wiring diagrams and connector information, refer to Wiring Diagrams Cell 23.

Normal Operation and Fault Symptoms

The wake-up control circuit wakes up the PCM before engine cranking. The PCM must wake up before a start request so that it has time to complete its initialization. The wake-up control circuit is controlled by the BCM. The BCM activates the wake-up control circuit when the driver door is opened, the key is inserted in the ignition lock, or when the ignition is in the ON or START position.

DTC Fault Trigger Conditions

Trouble Code	Description	Fault Trigger Conditions
C113A:11	PCM Wake-Up Signal: Short to Ground	Set by the BCM when a short to ground is detected in the wake-up control circuit.
C113A:15	PCM wake-up signal: short to battery or open circuit	Set by the BCM when a short to voltage or an open is detected in the wake-up control circuit.

Possible Sources

BCM
PCM
Wiring, Terminals or Connectors

DIAGNOSTIC TEST C: C113A:11 OR C113A:15

C1 CHECK THE BCM (BODY CONTROL MODULE) DTCS

The ignition is on.

Using a scan tool, perform the BCM self-test.

Is DTC C113A:11 present?

Yes

GO to C2

No	If DTC C113A:15 is present, GO to C4. For all other Body Control Module (BCM) Diagnostic Trouble Codes (DTCs) REFER TO: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

C2 CHECK THE PCM (POWERTRAIN CONTROL MODULE) WAKE-UP CONTROL CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect the PCM C1915B.

The ignition is on.

Using a scan tool, clear the BCM diagnostic trouble codes (DTCs).

Using a scan tool, perform the BCM self-test.

Is BCM DTC C113A:11 present?

Yes

GO to C3

GO TO C7

C3 CHECK THE PCM (POWERTRAIN CONTROL MODULE) WAKE-UP SIGNAL CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Action:
Click to display the connectors

Positive lead Measurement/Action Negative lead

C1915B-28 Ground

Is the resistance greater than 10000 Ohms?

Yes

GO TO C7

No	REPAIR the circuit.

C4 CHECK THE PCM (POWERTRAIN CONTROL MODULE) WAKE-UP SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect the PCM C1915B, if necessary.

Disconnect C2280C.

The ignition is on.

Action:
Click to display the connectors

Positive lead Measurement/Action Negative lead

C1915B-28 Ground

Is there voltage present?

Yes

REPAIR the circuit.

GO to C5

C5 CHECK THE PCM (POWERTRAIN CONTROL MODULE) WAKE-UP SIGNAL CIRCUIT FOR AN OPEN

Ignition OFF.

Action:
Click to display the connectors

Positive lead Measurement/Action Negative lead

C1915B-28 C2280C-18

Is the resistance less than 3 ohms?

Yes

GO to C6

No	REPAIR the circuit.

C6 CHECK THE BCM (BODY CONTROL MODULE) FOR PROPER OPERATION

Ignition OFF.

Disconnect and inspect all BCM connectors.

Repair:
- corrosion (install new connectors or terminals - clean the module contacts)
- damaged or bent terminals/pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the BCM connectors. Make sure they are fully seated and locked.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access the guided procedure (BCM). Ford Fusion. Starting System. Diagnosis and Testing

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No	The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal issues.

C7 CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect all PCM connectors.

Repair:
- corrosion (install new connectors or terminals - clean the module contacts)
- damaged or bent terminals/pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Connect the PCM connectors. Make sure they are fully seated and locked.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access the guided routine (PCM). Ford Fusion. Starting System. Diagnosis and Testing

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No	The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal issues.

P2534 or P2535

For circuit and connector information, refer to Wiring Diagrams Cell 20.

Normal Operation and Fault Symptoms

When the engine start/stop switch is pressed, the PCM receives a voltage signal on the start detection circuit. The PCM then supplies voltage and ground to the starter relay coil when the required inputs are received.

DTC Fault Trigger Conditions

Trouble Code	Description	Fault Trigger Conditions
P2534	Ignition Switch Run/Start Circuit Low	This DTC sets when the PCM or BCM detects a low voltage on the start detection circuit with the engine running.
P2535	Ignition Switch RUN/START Circuit - High Signal Level	This DTC sets when the PCM detects a short to battery voltage on the start detection circuit with the engine running.

Possible Sources

BCM
Ignition Switch - Push Button Start
PCM
Wiring, Terminals or Connectors

DIAGNOSTIC TEST D: DTC P2534 OR P2535

D1 RETRIEVE THE DIAGNOSTIC TROUBLE CODES (DTCS)

The ignition is on.

Using the diagnostic scan tool, perform a PCM self-test.

Is DTC P2534 or P2535 recorded?

Yes

GO to D2

No	For all PCM Diagnostic Trouble Codes (DTCs), refer to the PCM DTC Chart in this section.

D2 CHECK THE FACTORY-INSTALLED VOLTAGE DETECTION CIRCUIT FROM THE PCM (POWERTRAIN CONTROL MODULE) FOR AN OPEN

Ignition OFF.

Disconnect the PCM C1915B.

The ignition is on.

Action:
Click to display the connectors

Positive lead Measurement/Action Negative lead

C1915B-47 Ground

Is there voltage present?

Yes

GO to D3

GO to D5

D3 CHECK THE HANDLE VOLTAGE DETECTION CIRCUIT FOR A SHORT TO VOLTAGE FROM THE IGNITION LOCK - START BUTTON FOR AN OPEN

Ignition OFF.

Disconnect the Ignition Switch - Push Button Start C2195.

Action:
Click to display the connectors

Positive lead Measurement/Action Negative lead

C1915B-47 Ground

Is there voltage present?

Yes

GO to D4

No	INSTALL a new ignition lock - start button. REFER TO: Ignition Switch - Vehicles With: Push-Button Start (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).

D4 CHECK THE HANDLE VOLTAGE DETECTION CIRCUIT FOR A SHORT TO VOLTAGE FROM THE BCM (BODY CONTROL MODULE) FOR AN OPEN

Ignition OFF.

Disconnect C2280G.

Action:
Click to display the connectors

Positive lead Measurement/Action Negative lead

C1915B-47 Ground

Is there voltage present?

Yes

REPAIR the circuit.

GO to D6

D5 CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR CORRECT OPERATION

Disconnect and inspect all PCM connectors.

Repair:
- corrosion (install new connectors or terminals - clean the module contacts)
- damaged or bent terminals/pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Connect all connectors. Make sure they are fully seated and locked.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access the guided routine (PCM). Ford Fusion. Starting System. Diagnosis and Testing

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No	The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal issues.

D6 CHECK BCM (BODY CONTROL MODULE) OPERATION

Disconnect and inspect all BCM connectors.

Repair:
- corrosion (install new connectors or terminals - clean the module contacts)
- damaged or bent terminals/pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Connect all connectors. Make sure they are fully seated and locked.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access the guided procedure (BCM). Ford Fusion. Starting System. Diagnosis and Testing

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No	The system is currently operating correctly. The concern may have been caused by module connections. ADDRESS the root cause of any connector or terminal issues.

Component Test(s)

Starter - Positive Circuit Test

1
Make sure the battery is fully charged.
Refer to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).
2
Perform the battery drain test.
REFER TO: Battery Drain Test (414-01 Battery, Mounting and Cables, General Procedures).
3
Connect a remote starter switch between the starter solenoid "S" terminal and the battery positive terminal.
4
Connect the positive multimeter lead to the battery positive post. Connect the negative lead to the starter solenoid "M" terminal.

1
Place the gear selector lever in the Park or Neutral position.
2
Activate the remote starter switch. Read and record the voltage. The voltage reading must be 0.5 volts or less.
3
If the voltage reading is 0.5 V or less, perform the Starter - Ground Circuit Test in this section.
4
A voltage reading above 0.5 volts indicates excessive resistance in the connections, the battery positive cable or the starter solenoid. Disconnect the cables from the solenoid "B", "C" and "M" terminals. Clean the cables and connections and reconnect the cables to their correct terminals. Repeat steps 3 through 6.
5
If the voltage reading is still above 0.5 volts when checked at the "M" terminal, move the negative multimeter lead to the starter solenoid "B" terminal.
6
With the gear selector lever in the Park or Neutral position, activate the remote starter switch. Read and record the voltage.
7
If the voltage reading at the "B" terminal is below 0.5 volt, the problem is in the starter solenoid connections or the solenoid contacts. Install a new starter.
REFER TO: Starter Motor (303-06A Starting System - 1.5 L EcoBoost (118 kW/160 L hp) - I4, Removal and Installation).
8
If the voltage reading at the solenoid "B" terminal is above 0.5 volt after cleaning the cables and the solenoid connection, the problem is in the positive battery cable connection or the positive battery cable itself. Clean the positive battery cable connection. If this does not resolve the issue, install a new positive battery cable.
REFER TO: Battery Cables - 1.5 L EcoBoost (118 kW/160 L hp) - I4 (414-01 Battery, Mounting and Cables, Removal and Installation).

Starter - Ground Circuit Test

Slow cranking can be caused by high resistance in the ground or the starter circuit. This procedure tests the voltage drop in the ground circuit.

1
Connect a remote starter switch between the starter solenoid "S" terminal and the battery positive terminal.
2
Connect the positive multimeter lead to the starter motor housing. The connection must be clean, free of rust or grease. Connect the negative lead to the negative battery terminal.
3
Place the gear selector lever in the Park or Neutral position.
4
Activate the remote starter switch and crank the engine. Read and record the voltage reading. The reading must be 0.5 volts or less.

1
If the voltage reading is more than 0.5 V, clean the negative battery cable connections, the body ground connections and the starter ground connection. Retest.
2
If the voltage reading is above 0.5 volt, install a new negative battery cable.
REFER TO: Battery Cables - 1.5 L EcoBoost (118 kW/160 L hp) - I4 (414-01 Battery, Mounting and Cables, Removal and Installation).
3
If the voltage reading is below 0.5 volt and the engine still cranks slowly, install a new starter.
REFER TO: Starter Motor (303-06A Starting System - 1.5 L EcoBoost (118 kW/160 L hp) - I4, Removal and Installation).

Starting System - Diagnosis and Testing

Inspection and Verification

Diagnostic Trouble Code Charts

BCM Diagnostic Trouble Code Chart

PCM Diagnostic Trouble Code Chart

RTM DTC Chart

Symptom Chart

Symptom Chart: Starting System

Symptom Chart

Symptom Chart: Auto-Start-Stop System

Symptom Chart

Pinpoint Test(s)

Engine Does Not Crank

Normal Operation and Fault Symptoms

DTC Fault Trigger Conditions

Possible Sources

Visual Inspection and Preliminary Diagnosis

Abnormal Starter Motor Noise

Normal Operation and Fault Symptoms

Possible Sources

Visual Inspection and Preliminary Diagnosis

C113A:11 or C113A:15

Normal Operation and Fault Symptoms

DTC Fault Trigger Conditions

Possible Sources

P2534 or P2535

Normal Operation and Fault Symptoms

DTC Fault Trigger Conditions

Possible Sources

Component Test(s)

Starter - Positive Circuit Test

Starter - Ground Circuit Test

Test yourself