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Pinpoint Test P - DTC: B11D8:12 and B11D8:14

WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Supplemental Restraint System for schematic and connector information.

Normal Operation and Fault Conditions 

The RCM transmits an event notification signal which communicates crash status and SRS deployment status to the BCM and PCM. When the BCM and PCM receives the event notification signal which indicates a crash, they initiate fuel cut-off.

The RCM monitors the event notification signal circuit for the following faults:

If a fault is detected, the RCM stores DTC B11D8:12 or B11D8:14 in memory. The airbag warning indicator does not illuminate if B11D8:12 or B11D8:14 is set.

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
B11D8:12 Restraint Event Notification: Circuit Short to Battery A fault is indicated when the RCM senses a short to voltage on the event notification signal circuit for more than 15 seconds.
B11D8:14 Restraint Event Notification: Circuit Short to Ground or Open A fault is indicated when the RCM senses a short to ground or an open on the event notification signal circuit for more than 15 seconds.

Possible Sources 

PINPOINT TEST A : B11D8:12, B11D8:14 

  1. WARNING: Incorrect repair techniques or actions can cause an accidental Supplemental Restraint System (SRS) deployment. Never compromise or depart from these instructions. Failure to precisely follow all instructions could result in serious personal injury from an accidental deployment.
  2. NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
  3. NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.
  4. 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.
  5. NOTE: Install new components only when directed to do so in the pinpoint test.
  6. 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.
  7. NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.

  8. A1 RETRIEVE RCM (RESTRAINTS CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

    WARNING: Before beginning any service procedure, refer to Safety Warnings. Failure to follow this instruction may result in serious personal injury.

    • Ignition ON.

    • Using a diagnostic scan tool, perform the RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

    Was DTC B11D8:12 or B11D8:14 retrieved on-demand during self-test? 

    Yes  This fault cannot be cleared until it is corrected and the DTC is no longer retrieved on-demand during the self-test. For DTC B11D8:14, GO to  A2. For DTC B11D8:12, GO to  A7
    No  This is an intermittent fault when present as a CM DTC only. GO to  A10

  9. A2 CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR A FAULT STATUS CHANGE

    • Ignition OFF.

    • Disconnect PCM C1232B (With 2.7L engine).

    • Disconnect PCM C1551B (With 3.3L engine).

    • Disconnect PCM C1915B (With 3.5L engine).

    • Disconnect PCM C1381B (With 5.0L engine).

    • Ignition ON.

    • Using a diagnostic scan tool, perform the RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

    Was DTC B11D8:14 retrieved on-demand during self-test? 

    Yes  GO to  A3
    No  Refer to PCM Guided Routine Testing . GO to  A11

  10. A3 CHECK THE BCM (BODY CONTROL MODULE) FOR A FAULT STATUS CHANGE

    • Ignition OFF.

    • Prior to reconnecting any previously disconnected 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.
      • Repair any concerns found. Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

    • Connect All PCM connectors.

    • Disconnect BCM C2280E.

    • Ignition ON.

    • Using a diagnostic scan tool, perform the RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

    Was DTC B11D8:14 retrieved on-demand during self-test? 

    Yes  GO to  A4
    No  CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, Refer to BCM Guided Routine . GO to  A11

  11. A4 CHECK THE EVENT NOTIFICATION SIGNAL CIRCUIT FOR A SHORT TO GROUND

    • Ignition OFF.

    • Disconnect RCM C310A and C310B.

    • Disconnect PCM C1232B (With 2.7L engine).

    • Disconnect PCM C1551B (With 3.3L engine).

    • Disconnect PCM C1915B (With 3.5L engine).

    • Disconnect PCM C1381B (With 5.0L engine).

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280E-49
      GFD465490Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  A5
    No  REPAIR the circuit. Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to  A11

  12. A5 CHECK THE EVENT NOTIFICATION SIGNAL CIRCUIT FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C310B-42
      GFD465490Courtesy of FORD MOTOR COMPANY
      		 C2280E-49

    • With 2.7L engine, measure:
      Positive Lead Measurement / Action Negative Lead
      C310B-42
      GFD465490Courtesy of FORD MOTOR COMPANY
      		 C1232B-37

    • With 3.3L engine, measure:
      Positive Lead Measurement / Action Negative Lead
      C310B-42
      GFD465490Courtesy of FORD MOTOR COMPANY
      		 C1551B-37

    • With 3.5L engine, measure:
      Positive Lead Measurement / Action Negative Lead
      C310B-42
      GFD465490Courtesy of FORD MOTOR COMPANY
      		 C1915B-90

    • With 5.0L engine, measure:
      Positive Lead Measurement / Action Negative Lead
      C310B-42
      GFD465490Courtesy of FORD MOTOR COMPANY
      		 C1381B-37

    Are the resistances less than 3 ohms? 

    Yes  GO to  A6
    No  REPAIR the circuit. Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to  A11

  13. A6 CONFIRM THE RCM (RESTRAINTS CONTROL MODULE) FAULT

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

    • Ignition OFF.

    • Prior to reconnecting any  previously disconnected 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.
      • Repair any concerns found. Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

    • Reconnect all  previously disconnected components.

    • Ignition ON.

    • Using a diagnostic scan tool, perform the RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

    Was DTC B11D8:14 retrieved on-demand during self-test? 

    Yes  CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, CLEAR the RCM Diagnostic Trouble Codes (DTCs) and REPEAT the RCM self-test. If DTC B11D8:14 returns, INSTALL a new RCM. REFER to: Restraints Control Module (RCM) . GO to  A11 If DTC B11D8:14 does not return, GO to  A11
    No  In the process of diagnosing the fault, the fault condition has become intermittent. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test. GO to  A10

  14. A7 CHECK THE BCM (BODY CONTROL MODULE) FOR A FAULT STATUS CHANGE

    • Ignition OFF.

    • Prior to reconnecting any previously disconnected 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.
      • Repair any concerns found. Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

    • Connect All PCM connectors.

    • Disconnect BCM C2280E.

    • Ignition ON.

    • Using a diagnostic scan tool, perform the RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

    Was DTC B11D8:12 retrieved on-demand during self-test? 

    Yes  GO to  A8
    No  CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, Refer to BCM Guided Routine . GO to  A11

  15. A8 CHECK THE EVENT NOTIFICATION SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE

    • Ignition OFF.

    • Disconnect RCM C310A and C310B.

    • Disconnect PCM C1232B (With 2.7L engine).

    • Disconnect PCM C1551B (With 3.3L engine).

    • Disconnect PCM C1915B (With 3.5L engine).

    • Disconnect PCM C1381B (With 5.0L engine).

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280E-49
      GFD465489Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit. Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to  A11
    No  GO to  A9

  16. A9 CONFIRM THE RCM (RESTRAINTS CONTROL MODULE) FAULT

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

    • Ignition OFF.

    • Prior to reconnecting any  previously disconnected components:

      • 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.
      • repair any concerns found. Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

    • Reconnect all  previously disconnected components.

    • Ignition ON.

    • Using a diagnostic scan tool, perform the RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

    Was the original DTC retrieved on-demand during self-test? 

    Yes  CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RCM. REFER to: Restraints Control Module (RCM) . GO to  A11
    No  In the process of diagnosing the fault, the fault condition has become intermittent. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test. GO to  A10

  17. A10 CHECK FOR AN INTERMITTENT FAULT

    • Ignition OFF.

    • Disconnect PCM C1232B (With 2.7L engine).

    • Disconnect PCM C1551B (With 3.3L engine).

    • Disconnect PCM C1915B (With 3.5L engine).

    • Disconnect PCM C1381B (With 5.0L engine).

    • Disconnect BCM C2280E.

    • Disconnect RCM C310A and C310B.

    • Inspect all  disconnected components:

      • inspect connector(s) (including any inline connectors) for loose or spread terminals and loose or frayed wire connections at terminals.
      • inspect wire harness for any damage, pinched, cut or pierced wires.
      • repair any concerns found. Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

    • Reconnect all  previously disconnected components.

    • Ignition ON.

    • Using a diagnostic scan tool, perform the RCM self-test to retrieve Diagnostic Trouble Codes (DTCs).

    Was DTC B11D8:12 or B11D8:14 retrieved on-demand during self-test? 

    Yes  The fault condition is now present. This fault cannot be cleared until it is corrected and the DTC is no longer retrieved on-demand during the self-test. For DTC B11D8:14, GO to  A2. For DTC B11D8:12, GO to  A7
    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. Only install SRS components when directed to do so in the pinpoint test. REPAIR any intermittent concerns found. GO to  A11

  18. A11 CHECK FOR ADDITIONAL SRS (SUPPLEMENTAL RESTRAINT SYSTEM) DIAGNOSTIC TROUBLE CODES (DTCS)

    • Ignition OFF.

    • Reconnect all  previously disconnected components.

    • Ignition ON.

    • NOTE: When selecting Restraints from the Self Test menu, DTCs are retrieved from the RCM, OCSM and BECMB.

      Using a diagnostic scan tool, carry out RCM self-test.

    Are any RCM, OCSM and/or BECMB 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 Diagnostic Trouble Codes (DTCs). REFER to: Airbag Supplemental Restraint System (SRS) .
    No  The repair is complete. RETURN the vehicle to the customer.
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