For circuit and connector information, refer to Wiring Diagrams Cell 46.
Normal Operation and Fault Symptoms
The RCM monitors the driver side front door and right rear pillar side crash sensors and circuits for the following faults:
Open circuit
Short to voltage
Short to Ground
Driver front door side impact sensor fault
Right Rear Pillar Side Crash Sensor Faulty
When a fault is detected, the RCM stores DTC B1414:11, B1414:93, B1419:11 or B1419:93 in memory and sends a message to the IPC to illuminate the airbag warning indicator.
The RCM communicates with each crash sensor. If the RCM cannot communicate with the sensor, the DTC is stored in memory. A continuous memory diagnostic trouble code (CMDTC) no operation (failure type: 93) may be set by a short to voltage in the crash sensor return circuit.
DTC Fault Trigger Conditions
Trouble Code
Description
Fault Trigger Conditions
B1414:11
Driver Side Supplemental Restraint System Sensor 1: Short to Ground
The fault is indicated when the RCM detects a short in the driver side front door side crash sensor, a short in the right second row side crash sensor, a short to ground in the driver side front door crash sensor supply circuit, or a short to ground in the supply circuit of the right second row side crash sensor.
B1414:93
Driver Side Restraint System Sensor 1: Inoperative
The fault is indicated when the RCM detects a faulty driver side front door side crash sensor, a short to voltage in the supply or return circuit of the driver side front door crash sensor, a short to voltage in the supply or return circuit of the right second row side crash sensor, or an open in the supply or return circuit of the driver side front door side crash sensor.
B1419:11
Passenger Side Secondary Restraint Sensor 2: Short to Ground
The fault is indicated when the RCM detects a short in the driver side front door side crash sensor, a short in the right second row side crash sensor, a short to ground in the driver side front door crash sensor supply circuit, or a short to ground in the supply circuit of the right second row side crash sensor.
B1419:93
Passenger Side Restraint System Sensor 2: Inoperative
The fault is indicated when the RCM detects a faulty right second row side crash sensor, a short to voltage in the supply or return circuit of the right second row side crash sensor, a short to voltage in the supply or return circuit of the driver side front door side crash sensor, or an open in the supply or return circuit of the right second row side crash sensor.
Possible Causes
Wiring, Terminals or Connectors
Driver Front Door Side Impact Sensor
Right Rear Pillar Side Crash Sensor
RCM
Visual Inspection and Preliminary Diagnosis
Inspect the wiring harness for damage.
PINPOINT TEST A: B1414:11, B1414:93, B1419:11, B1419:93
NOTE: Most concerns are related to connector and/or wiring issues. Perform a thorough inspection and check before proceeding to the Pinpoint Test.
NOTE: Only disconnect or reconnect SRS components when instructed to do so in the Pinpoint Test step. Failure to follow this instruction may result in an incorrect SRS diagnosis.
NOTE: Always verify the correct SRS component is installed. Parts released for other vehicles may be incompatible even if they appear physically similar. Check the part number listed in the Ford parts catalog to confirm the correct component is installed. If an incorrect SRS component is installed, diagnostic trouble codes (DTCs) may be set.
NOTE: Before returning the vehicle to the customer, the SRS must be fully functional and operating correctly.
NOTE: Do not probe the impact sensor. The impact sensor cannot be tested with a multimeter.
A1 REMOVE RCM (RESTRAINTS CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
WARNING: Before starting any service procedure in this section, refer to the Safety Warnings in Section 100-00 General Information. Failure to follow this instruction may result in serious personal injury. REFER TO: Pyrotechnic Device Handling Precautions (100-00 General Information, Description and Operation).
The ignition is on.
Using the diagnostic scanner, perform the RCM self-test.
Were any diagnostic trouble codes (DTCs) retrieved on demand during the self-test?
Yes
The fault(s) cannot be resolved until the cause is repaired and the diagnostic trouble codes (DTCs) are no longer retrieved on demand during the self-test. For DTC B1414:11 AND B1419:11, GO to A2. For DTC B1414:93 AND B1419:93, GO to A6. For DTC B1414:93 ONLY, GO to A8. For DTC B1419:93 ONLY, GO to A11. For any other DTCs REFER TO: Supplemental Restraint System (SRS) (501-20 Supplemental Restraint System).
No
The fault is intermittent if it is present only as a continuous memory diagnostic trouble code (CMDTC). GO to A15.
A2 CHECK THE DRIVER SIDE IMPACT SENSOR 1 DTC (DIAGNOSTIC TROUBLE CODE) FOR A CHANGE IN FAULT STATUS (SHORT TO GROUND INDICATED)
Ignition OFF.
De-power the SRS. REFER to: Supplemental Restraint System (SRS) Disabling and Re-enabling (501-20B Supplemental Restraint System, General Procedures).
Disconnect: Driver Side Front Door Impact Sensor C567.
Reset the SRS. Do not check the SRS at this time. REFER TO: Supplemental Restraint System (SRS) Disarming and Rearming (501-20B Supplemental Restraint System, General Procedures).
The ignition is on.
Using the diagnostic scanner, perform the RCM self-test.
Did the DTCs on demand change from B1414:11 and B1419:11 to B1414:93?
Yes
INSTALL a new driver side front door impact sensor. REFER TO: Front Door Impact Sensor (501-20B Supplemental Restraint System, Removal and Installation). GO to A16.
No
GO to A3
A3 CHECK THE PASSENGER SIDE IMPACT SENSOR 2 DTC (DIAGNOSTIC TROUBLE CODE) FOR A CHANGE IN FAULT STATUS (SHORT TO GROUND INDICATED)
Ignition OFF.
De-power the SRS. REFER to: Supplemental Restraint System (SRS) Disabling and Re-enabling (501-20B Supplemental Restraint System, General Procedures).
Connect: Driver Side Front Door Impact Sensor C567.
Disconnect the right rear pillar impact sensor C3211.
Reset the SRS. Do not check the SRS at this time. REFER TO: Supplemental Restraint System (SRS) Disarming and Rearming (501-20B Supplemental Restraint System, General Procedures).
The ignition is on.
Using the diagnostic scanner, perform the RCM self-test.
Did the DTC on demand change from B1414:11 and B1419:11 to B1419:93?
Yes
INSTALL a new right rear pillar impact sensor. REFER TO: Rear Pillar Impact Sensor (501-20B Supplemental Restraint System, Removal and Installation). GO to A16.
No
GO to A4
A4 CHECK THE DRIVER SIDE FRONT DOOR IMPACT SENSOR POWER CIRCUIT FOR A SHORT TO GROUND AND BETWEEN SENSOR CIRCUITS
Ignition OFF.
De-power the SRS. REFER to: Supplemental Restraint System (SRS) Disabling and Re-enabling (501-20B Supplemental Restraint System, General Procedures).
Disconnect: Driver Side Front Door Impact Sensor C567.
Disconnect: RCM C310A and C310B.
Action: Click to display the connectors
Positive lead
Measurement/Action
Negative lead
C567-1
C567-2
Action: Click to display the connectors
Positive lead
Measurement/Action
Negative lead
C567-1
Ground
Is the resistance greater than 10000 ohms?
Yes
GO to A5
No
REPAIR the faulty circuit(s). For schematics and connector information, refer to Wiring Diagrams Cell 5. GO to A16.
A5 CHECK THE RIGHT (RH) REAR PILLAR IMPACT SENSOR POWER CIRCUIT FOR A SHORT TO GROUND AND BETWEEN SENSOR CIRCUITS
Action: Click to display the connectors
Positive lead
Measurement/Action
Negative lead
C3211-1
C3211-2
Action: Click to display the connectors
Positive lead
Measurement/Action
Negative lead
C3211-1
Ground
Is the resistance greater than 10000 ohms?
Yes
GO to A14
No
REPAIR the faulty circuit(s). For schematics and connector information, refer to Wiring Diagrams Cell 5. GO to A16.
A6 CHECK THE DRIVER SIDE FRONT DOOR IMPACT SENSOR CIRCUITS FOR A SHORT TO VOLTAGE (NO FUNCTION INDICATED)
Ignition OFF.
De-power the SRS. REFER to: Supplemental Restraint System (SRS) Disabling and Re-enabling (501-20B Supplemental Restraint System, General Procedures).
Disconnect: Driver Side Front Door Impact Sensor C567.
Disconnect: RCM C310A and C310B.
Reset the SRS. Do not check the SRS at this time. REFER TO: Supplemental Restraint System (SRS) Disarming and Rearming (501-20B Supplemental Restraint System, General Procedures).
The ignition is on.
Action: Click to display the connectors
Positive lead
Measurement/Action
Negative lead
C567-1
Ground
C567-2
Ground
Is there voltage present?
Yes
REPAIR the damaged circuits. For schematics and connector information, refer to Wiring Diagrams Cell 5. GO to A16.
No
GO to A7
A7 CHECK THE RIGHT (RH) REAR PILLAR IMPACT SENSOR CIRCUITS FOR A SHORT TO VOLTAGE (NO FUNCTION INDICATED)
Ignition OFF.
De-power the SRS. REFER to: Supplemental Restraint System (SRS) Disabling and Re-enabling (501-20B Supplemental Restraint System, General Procedures).
Disconnect the right rear pillar impact sensor C3211.
Reset the SRS. Do not check the SRS at this time. REFER TO: Supplemental Restraint System (SRS) Disarming and Rearming (501-20B Supplemental Restraint System, General Procedures).
The ignition is on.
Action: Click to display the connectors
Positive lead
Measurement/Action
Negative lead
C3211-1
Ground
C3211-2
Ground
Is there voltage present?
Yes
REPAIR the damaged circuits. For schematics and connector information, refer to Wiring Diagrams Cell 5. GO to A16.
No
GO to A14
A8 CHECK THE DRIVER SIDE FRONT DOOR IMPACT SENSOR AND RCM (RESTRAINTS CONTROL MODULE) CONNECTIONS (NO FUNCTION INDICATED)
Ignition OFF.
De-power the SRS. REFER to: Supplemental Restraint System (SRS) Disabling and Re-enabling (501-20B Supplemental Restraint System, General Procedures).
Access the driver side front door impact sensor C567 and inspect to make sure it is fully seated and locked. Seat and lock the connector as necessary. REFER TO: Front Door Impact Sensor (501-20B Supplemental Restraint System, Removal and Installation).
Access the RCM and inspect C310A and C310B to make sure they are fully seated and locked. Seat and lock the connector(s) as necessary. REFER TO: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation).
Reset the SRS. Do not check the SRS at this time. REFER TO: Supplemental Restraint System (SRS) Disarming and Rearming (501-20B Supplemental Restraint System, General Procedures).
The ignition is on.
Using the diagnostic scanner, perform the RCM self-test.
Was DTC B1414:93 retrieved on demand during the self-test?
Yes
GO to A9
No
The fault is repaired. GO to A16.
A9 CHECK THE DRIVER SIDE FRONT DOOR IMPACT SENSOR CIRCUITS FOR AN OPEN (NO FUNCTION INDICATED)
Ignition OFF.
Depower the SRS. REFER TO: Supplemental Restraint System (SRS) Re-enabling (501-20B Supplemental Restraint System, General Procedures).
Disconnect: RCM C310A and C310B.
Disconnect: Driver Side Front Door Impact Sensor C567.
Action: Click to display the connectors
Positive lead
Measurement/Action
Negative lead
C310B-44
C567-1
C310B-43
C567-2
Is the resistance less than 0.5 Ohms?
Yes
GO to A10
No
REPAIR the faulty circuit. For schematics and connector information, refer to Wiring Diagrams Cell 5. GO to A16.
A10 CHECK THE DRIVER SIDE FRONT DOOR IMPACT SENSOR 1 DTC (DIAGNOSTIC TROUBLE CODE) FOR A CHANGE IN FAULT STATUS (NO FUNCTION INDICATED)
Connect: RCM C310A and C310B.
Connect a fused jumper wire: Click to display connectors
Lead 1
Measurement/Action
Lead 2
C567-1
C567-2
Reset the SRS. Do not check the SRS at this time. REFER TO: Supplemental Restraint System (SRS) Disarming and Rearming (501-20B Supplemental Restraint System, General Procedures).
The ignition is on.
Using the diagnostic scanner, perform the RCM self-test.
Did the DTC change from B1414:93 to B1414:11 and B1419:11?
Yes
REMOVE the fuse link and INSTALL a new driver side front door impact sensor. REFER TO: Front Door Impact Sensor (501-20B Supplemental Restraint System, Removal and Installation). GO to A16.
No
REMOVE the fuse link and GO to A14.
A11 CHECK THE RIGHT (RH) REAR PILLAR IMPACT SENSOR AND RCM (RESTRAINTS CONTROL MODULE) CONNECTIONS (NO FUNCTION INDICATED)
Ignition OFF.
De-power the SRS. REFER to: Supplemental Restraint System (SRS) Disabling and Re-enabling (501-20B Supplemental Restraint System, General Procedures).
Access the right rear pillar impact sensor and inspect C3211 to make sure it is fully seated and locked. Seat and lock the connector as necessary. REFER TO: Rear Pillar Impact Sensor (501-20B Supplemental Restraint System, Removal and Installation).
Access the RCM and inspect C310A and C310B to make sure they are fully seated and locked. Seat and lock the connector(s) as necessary. REFER TO: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation).
Reset the SRS. Do not check the SRS at this time. REFER TO: Supplemental Restraint System (SRS) Disarming and Rearming (501-20B Supplemental Restraint System, General Procedures).
The ignition is on.
Using the diagnostic scanner, perform the RCM self-test.
Was DTC B1419:93 retrieved on demand during the self-test?
Yes
GO to A12
No
The fault is repaired. GO to A16.
A12 CHECK THE RIGHT (RH) REAR PILLAR IMPACT SENSOR CIRCUITS FOR AN OPEN (NO FUNCTION INDICATED)
Ignition OFF.
De-power the SRS. REFER to: Supplemental Restraint System (SRS) Disabling and Re-enabling (501-20B Supplemental Restraint System, General Procedures).
Disconnect: RCM C310A and C310B.
Disconnect the right rear pillar impact sensor C3211.
Action: Click to display the connectors
Positive lead
Measurement/Action
Negative lead
C310B-32
C3211-1
C310B-31
C3211-2
Is the resistance less than 0.5 Ohms?
Yes
GO to A13
No
REPAIR the faulty circuit. For schematics and connector information, refer to Wiring Diagrams Cell 5. GO to A16.
A13 CHECK THE PASSENGER SIDE IMPACT SENSOR 2 DTC (DIAGNOSTIC TROUBLE CODE) FOR A CHANGE IN FAULT STATUS (NO FUNCTION INDICATED)
Connect: RCM C310A and C310B.
Connect a fused jumper wire: Click to display connectors
Lead 1
Measurement/Action
Lead 2
C3211-1
C3211-2
Reset the SRS. Do not check the SRS at this time. REFER TO: Supplemental Restraint System (SRS) Disarming and Rearming (501-20B Supplemental Restraint System, General Procedures).
The ignition is on.
Using the diagnostic scanner, perform the RCM self-test.
Did the DTC change from B1419:93 to B1419:11 and B1414:11?
Yes
REMOVE the jumper and INSTALL a new right rear pillar impact sensor. REFER TO: Rear Pillar Impact Sensor (501-20B Supplemental Restraint System, Removal and Installation). GO to A16.
No
REMOVE the fuse link and GO to A14.
A14 CONFIRM THE RCM (RESTRAINTS CONTROL MODULE) IS THE CAUSE
Ignition OFF.
De-power the SRS. REFER to: Supplemental Restraint System (SRS) Disabling and Re-enabling (501-20B Supplemental Restraint System, General Procedures).
Before reconnecting any previously disconnected SRS component:
inspect the connector(s) (including any integral connectors) for pushed-out, loose or spread terminals, and loose or chafed wire connections at the terminals.
Inspect the wiring harness for damage, pinching, cuts or punctures in the wires.
check the RCM C310A and C310B connector position assurance (CPA) lever/latch for proper operation.
repair any problems found. Refer to Wiring Diagrams Cell 5 for schematic and connector information.
Connect: Rear Pillar Side Impact Sensor - Right C3211 (if previously disconnected).
Connect: Driver Side Door Side Impact Sensor C567 (if previously disconnected).
Connect: RCM C310A and C310B.
Reset the SRS. Do not check the SRS at this time.
The ignition is on.
Using the diagnostic scanner, perform the RCM self-test.
Was the original DTC retrieved on demand during the self-test?
Yes
CHECK 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 TSB applies to this concern, INSTALL a new RCM. REFER TO: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation). GO to A16
No
During diagnosis, the condition has become intermittent. Do not install new SRS components at this time. Install SRS components only if directed by a pinpoint test. GO to A15
A15 CHECK FOR INTERMITTENT CONCERN
Ignition OFF.
De-power the SRS. REFER to: Supplemental Restraint System (SRS) Disabling and Re-enabling (501-20B Supplemental Restraint System, General Procedures).
Disconnect the right rear pillar impact sensor C3211.
Disconnect: Driver Side Front Door Impact Sensor C567.
Disconnect: RCM C310A and C310B.
Inspect:
harness and component connectors for loose or spread terminals and loose or corroded wire connections at the terminals.
wiring harness for damage, pinching, cuts or punctures in the wires.
RCM C310A and C310B Connector Position Assurance (CPA) lever/latch for proper operation
repair any problems found. Refer to Wiring Diagrams Cell 5 for schematic and connector information.
Connect: Rear Pillar Side Impact Sensor - Right C3211.
Connect: Driver Side Front Door Impact Sensor C567.
Connect: RCM C310A and C310B.
Reset the SRS. Do not check the SRS at this time. REFER TO: Supplemental Restraint System (SRS) Disarming and Rearming (501-20B Supplemental Restraint System, General Procedures).
The ignition is on.
Using the diagnostic scanner, perform the RCM self-test.
Was DTC B1414:11, B1414:93, B1419:11 or B1419:93 retrieved on demand during the self-test?
Yes
The fault(s) cannot be cleared until it is repaired and the DTC is no longer retrieved on demand during the self-test. For DTC B1414:11 AND B1419:11, GO to A2 For DTC B1414:93 AND B1419:93, GO to A6 For DTC B1414:93 ONLY , GO to A8 For DTC B1419:93 ONLY , GO to A11
No
The fault is not present and cannot be duplicated at this time. Do not install any new SRS components at this time. Install SRS components only when directed by the pinpoint test. GO to A16
Reconnect all SRS components (if previously disconnected).
If previously instructed to disable the SRS, re-enable the SRS. Do not check the SRS at this time. Refer to: Supplemental Restraint System (SRS) Disabling and Arming (501-20B Supplemental Restraint System, General Procedures).
The ignition is on.
NOTE: When Restraints is selected in the Self Test menu, DTCs are retrieved from the RCM and OCSM. Using the diagnostic scanner, perform the Restraints Self Test.
Are any RCM and/or OCSM Diagnostic Trouble Codes (DTCs) retrieved on demand during the self-test?
Yes
Do not clear any Diagnostic Trouble Codes (DTCs) until all DTCs have been resolved. DIAGNOSE and REPAIR the RCM and/or OCSM DTCs. REFER TO: Supplemental Restraint System (SRS) (501-20 Supplemental Restraint System).
No
CLEAR all RCM and OCSM continuous memory diagnostic trouble codes (CMDTCs). VERIFY SRS. Repair is complete. RETURN the vehicle to the customer.
?
Test yourself
A quick Ford Fiesta quiz: every answer comes with an explanation and a link to the manual page.
WARNING: Before starting any service procedure in this section, refer to the Safety Warnings in Section 100-00 General Information. Failure to follow this instruction may result in serious personal injury. 
