501-20B Supplemental Restraint System 2014 Fiesta
Diagnosis and Testing Procedure revision date: 05/6/2013

Pinpoint Test - DTC: Y

BXXXX:4A (any BXXXX DTC with a 4A failure type) Incorrect Component Installed

Normal Operation and Fault Conditions

The RCM monitors all SRS device connections. If the RCM detects a device connected that is not stored in memory or is not configured for the component, the RCM sets a DTC and sends a message to the IPC to illuminate airbag warning indicator.



  DTC Fault Trigger Conditions


  DTC Description Fault Trigger Conditions
B0001:4A Driver Frontal Stage 1 Deployment Control: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B0002:4A Driver Frontal Stage 2 Deployment Control: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B0004:4A Driver Knee Bolster Deployment Control: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B0010:4A Passenger Frontal Stage 1 Deployment Control: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B0011:4A Passenger Frontal Stage 2 Deployment Control: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B0050:4A Driver Seatbelt Sensor: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B0052:4A Passenger Seatbelt Sensor: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B007E:4A Driver Seatbelt Pretensioner "C" Deployment Control: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B007F:4A Passenger Seatbelt Pretensioner "C" Deployment Control: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B0082:4A Passenger Seatbelt Load Limiter Deployment Control: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B00B5:4A Driver Seat Track Position Restraints Sensor: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B00C5:4A Passenger Seat Track Position Restraints Sensor: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B00D5:4A Restraint System Passenger Disable Indicator: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B1404:4A Driver Side Airbag Deployment Control: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B1405:4A Driver Side Curtain Deployment Control 1: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B1407:4A Passenger Side Airbag Deployment Control: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B1408:4A Passenger Side Curtain Deployment Control 1: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B1413:4A Driver Frontal Restraints Sensor: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B1414:4A Driver Side Restraints Sensor 1: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B1415:4A Driver Side Restraints Sensor 2: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B1417:4A Passenger Frontal Restraints Sensor: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B1418:4A Passenger Side Restraints Sensor 1: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B1419:4A Passenger Side Restraints Sensor 2: Incorrect Component Installed This DTC sets if the RCM detects the device but it is not configured for this component.
B1469:4A Unused Satellite Restraints Sensor 1: Incorrect Component Installed This DTC sets if the RCM detects an unexpected impact sensor.
B146A:4A Unused Satellite Restraints Sensor 2: Incorrect Component Installed This DTC sets if the RCM detects an unexpected impact sensor.


Possible Causes


PINPOINT TEST A : BXXXX:4A (ANY BXXXX DTC (DIAGNOSTIC TROUBLE CODE) WITH A 4A FAILURE TYPE) INCORRECT COMPONENT INSTALLED
NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.
NOTE: Only disconnect or reconnect SRS components when instructed to do so within a pinpoint test step. Failure to follow this instruction may result in incorrect diagnosis of the SRS .
NOTE: Always make sure the correct SRS component is being installed. Parts released for other vehicles may not be compatible even if they appear physically similar. Check the part number listed in the Ford parts catalog to make sure the correct component is being installed. If an incorrect SRS component is installed, Diagnostic Trouble Codes (DTCs) may set.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
A1   RETRIEVE RCM (RESTRAINTS CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, perform RCM self-test.

Were any incorrect component installed Diagnostic Trouble Codes (DTCs) retrieved on-demand during self-test?

Yes This fault cannot be cleared until it is corrected and the DTC is no longer retrieved during self-test.
If DTC B00A0:4A was retrieved,
REFER to: Pinpoint Test - DTC: K (501-20B Supplemental Restraint System, Diagnosis and Testing).

For all other incorrect component installed Diagnostic Trouble Codes (DTCs), GO to A2
No This is an intermittent fault when present as a Continuous Memory Diagnostic Trouble Code (CMDTC) only. GO to A7


A2   CHECK THE VEHICLE HISTORY
  • Ignition OFF.
  • Check the vehicle repair history.

Has a new RCM or OCSM been installed during this or a prior repair?

Yes GO to A3
No GO to A4


A3   CHECK THE RCM (RESTRAINTS CONTROL MODULE) AND OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) VEHICLE IDENTIFICATION PARAMETER IDENTIFICATIONS (PIDS)
  • Ignition ON.
  • Using a diagnostic scan tool, view RCM Parameter Identifications (PIDs).
  • View and record the value displayed by the following Parameter Identifications (PIDs):
    • V_ID_14229_RCM
    • OCS_MY
  • Using a diagnostic scan tool, view OCSM Parameter Identifications (PIDs).
  • View and record the value displayed by the following Parameter Identifications (PIDs):
    • V_ID_14229_OCS
    • MY_14229
  • Verify the correct vehicle application.

Do the PID values match the vehicle application?

Yes GO to A4
No INSTALL the correct RCM or OCSM .
REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation).
REFER to: Occupant Classification System (OCS) Sensor (501-20B Supplemental Restraint System, Removal and Installation).
GO to A8


A4   VERIFY THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE PART NUMBER
  • Ignition ON.
  • Using the Log Viewer function of the diagnostic scan tool, retrieve and record the ABS module part number.
  • Check the part number recorded against the number listed in the Ford parts catalog and verify the correct ABS module is present in the vehicle.

Is the correct ABS module installed?

Yes GO to A5
No INSTALL the correct ABS module.
REFER to: Hydraulic Control Unit (HCU) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal and Installation).
GO to A8


A5   VERIFY THE RCM (RESTRAINTS CONTROL MODULE) CONFIGURATION
  • Carry out PMI for the RCM . Use As-Built data when carrying out PMI . Refer to the diagnostic scan tool instructions to carry out PMI .
  • Using a diagnostic scan tool, perform RCM self-test.

Were any incorrect component installed Diagnostic Trouble Codes (DTCs) retrieved on-demand during self-test?

Yes GO to A6
No The fault is corrected. GO to A8


A6   CONFIRM THE RCM (RESTRAINTS CONTROL MODULE) FAULT

NOTE: Make sure all SRS components and the RCM electrical connectors are connected before carrying out the self-test. If not, Diagnostic Trouble Codes (DTCs) will be recorded.

  • Ignition OFF.
  • Disconnect: RCM C310A and C310B.
  • Prior to reconnecting any previously disconnected SRS component:
    • inspect connector(s) (including any inline connectors) for pushed-out, loose or spread terminals and loose or frayed wire connections at terminals.
    • inspect wire harness for any damage, pinched, cut or pierced wires.
    • inspect RCM C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation.
    • repair any concerns found.
      Refer to Wiring Diagrams Cell 5 for schematic and connector information.
  • Connect: RCM C310A and C310B.
  • Ignition ON.
  • Using a diagnostic scan tool, perform RCM self-test.

Were any incorrect component installed Diagnostic Trouble Codes (DTCs) retrieved on-demand during self-test?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new RCM .
REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation).
GO to A8
No In the process of diagnosing the fault, the fault condition has become intermittent. Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test. GO to A7


A7   CHECK FOR AN INTERMITTENT FAULT
  • Using a diagnostic scan tool, perform RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

Were any incorrect component installed Diagnostic Trouble Codes (DTCs) retrieved on-demand during self-test?

Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new RCM .
REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation).
GO to A8
No CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition frequently. ACTIVATE other systems in the same wire harness. Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test. GO to A8


A8   CHECK FOR ADDITIONAL SRS (SUPPLEMENTAL RESTRAINT SYSTEM) DIAGNOSTIC TROUBLE CODES (DTCS)

WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.

  • Ignition OFF.
  • Reconnect all SRS components (if previously disconnected).
  • Ignition ON.
  • NOTE: When selecting Restraints from the Self Test menu, DTCs are retrieved from the RCM and OCSM .

    Using a diagnostic scan tool, perform Restraints self-test.

Are any RCM and/or OCSM Diagnostic Trouble Codes (DTCs) retrieved on-demand during self-test?

Yes Do not clear any Diagnostic Trouble Codes (DTCs) until all Diagnostic Trouble Codes (DTCs) have been resolved. DIAGNOSE and REPAIR the RCM and/or OCSM Diagnostic Trouble Codes (DTCs).
REFER to: Airbag Supplemental Restraint System (SRS) (501-20B Supplemental Restraint System, Diagnosis and Testing).
No CLEAR all RCM and OCSM Continuous Memory Diagnostic Trouble Codes (CMDTCs). PROVE OUT the SRS . The repair is complete. RETURN the vehicle to the customer.





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