Pinpoint Test T - DTC: B1413:11 and B1413:93

Refer to Supplemental Restraint System for schematic and connector information.

Normal Operation and Fault Conditions 

The RCM monitors the LH front impact severity sensor circuits for the following faults:

• Open circuit
• Short to voltage
• Short to ground
• Faulted LH front impact severity sensor

If a fault is detected, the RCM stores DTC B1413:11 or B1413:93 in memory and sends a message to the IPC to illuminate the airbag warning indicator.

DTC Fault Trigger Conditions 

Possible Causes 

• Wiring, terminals or connectors
• LH front impact severity sensor
• RCM

Visual Inspection and Diagnostic Pre-checks 

• Inspect for a damaged LH front impact severity sensor.
• Inspect the LH front impact severity sensor mounting and orientation.
• Inspect for damaged wiring harness(es).
• Inspect for loose or damaged connectors.

PINPOINT TEST A : B1413:11 AND B1413:93 

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: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.
3. 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.
4. 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.
5. NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
6. NOTE: Do not probe any impact sensor. The impact sensor cannot be tested using a multi-meter
7. A1 RETRIEVE RCM (RESTRAINTS CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
   
   
   • WARNING: Before beginning any service procedure, refer to Safety Warnings in General Information. Failure to follow this instruction may result in serious personal injury.

     REFER to: Pyrotechnic Device Health and Safety Precautions .

   • Ignition ON.
   • Using a diagnostic scan tool, perform RCM self-test.

   Was DTC B1413:11 or B1413:93 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 self-test. For DTC B1413:11, GO to  A2. For DTC B1413:93, GO to  A5

   No	This is an intermittent fault when present as a Continuous Memory Diagnostic Trouble Code (CMDTC) only. GO to  A10

8. A2 CHECK THE LEFT FRONTAL RESTRAINTS SENSOR DTC (DIAGNOSTIC TROUBLE CODE) FOR A FAULT STATUS CHANGE (SHORT TO GROUND INDICATED)
   
   
   NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the reported fault changes, this indicates the RCM is functioning correctly and is not the source of the fault.
   • Ignition OFF.
   • Depower the SRS. Refer to: Supplemental Restraint System (SRS) Depowering .
   • Disconnect: LH Front Impact Severity Sensor C1465 .
     • Remove the air cleaner. Refer to: Air Cleaner .

   • Repower the SRS.

     Do not  prove out the SRS at this time. Refer to: Supplemental Restraint System (SRS) Repowering .

   • Ignition ON.
   • Using a diagnostic scan tool, perform RCM self-test.

   Did the on-demand DTC change from B1413:11 to B1413:93? 

   Yes	INSTALL a new LH front impact severity sensor. Refer to: Front Impact Severity Sensor . Go to  A11

   No

   GO to  A3

9. A3 CHECK THE LH (LEFT-HAND) FRONT IMPACT SEVERITY SENSOR FEED CIRCUIT FOR A SHORT TO GROUND
   
   
   • Ignition OFF.
   • Depower the SRS. Refer to: Supplemental Restraint System (SRS) Depowering .
   • Disconnect: RCM C310A and C310B .
   • Measure:

     Positive Lead	Measurement / Action	Negative Lead
     C1465-1	Courtesy of FORD MOTOR COMPANY	Ground

   Is the resistance greater than 10, 000 ohms? 

   Yes

   GO to  A4

   No	REPAIR the circuit. Refer to Connector Repair Procedures for schematic and connector information. Go to  A11

10. A4 CHECK FOR A SHORT BETWEEN LH (LEFT-HAND) FRONT IMPACT SEVERITY SENSOR CIRCUITS
    
    
    • Measure:

      Positive Lead	Measurement / Action	Negative Lead
      C1465-1	Courtesy of FORD MOTOR COMPANY	C1465-2

    Is the resistance greater than 10, 000 ohms? 

    Yes

    GO to  A9

    No	REPAIR the circuits. Refer to Connector Repair Procedures for schematic and connector information. Go to  A11

11. A5 CHECK THE LH (LEFT-HAND) FRONT IMPACT SEVERITY SENSOR AND RCM (RESTRAINTS CONTROL MODULE) CONNECTIONS (NO OPERATION INDICATED)
    
    
    • Ignition OFF.
    • Depower the SRS. Refer to: Supplemental Restraint System (SRS) Depowering .
    • Inspect the LH Front Impact Severity Sensor electrical connector C1465 to make sure it is fully seated and locked. Seat and lock the connector as necessary.
      • Remove the air cleaner. Refer to: Air Cleaner .

    • Gain access to the RCM and inspect C310A and C310B to make sure they are fully seated and locked. Seat and lock the connector as necessary
    • Repower the SRS.

      Do not  prove out the SRS at this time. Refer to: Supplemental Restraint System (SRS) Repowering .

    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.

    Was DTC B1413:93 retrieved on-demand during self-test? 

    Yes

    GO to  A6

    No	The fault has been corrected. GO to  A11

12. A6 CHECK THE LH (LEFT-HAND) FRONT IMPACT SEVERITY SENSOR FEED CIRCUIT FOR A SHORT TO VOLTAGE (NO OPERATION INDICATED)
    
    
    • Ignition OFF.
    • Depower the SRS. Refer to: Supplemental Restraint System (SRS) Depowering .
    • Disconnect: LH Front Impact Severity Sensor C1465 .
    • Disconnect: RCM C310A and C310B .
    • Repower the SRS.

      Do not  prove out the SRS at this time. Refer to: Supplemental Restraint System (SRS) Repowering .

    • Ignition ON.
    • Measure:

      Positive Lead	Measurement / Action	Negative Lead
      C1465-1	Courtesy of FORD MOTOR COMPANY	Ground

    Is any voltage present? 

    Yes	REPAIR the circuit. Refer to Connector Repair Procedures for schematic and connector information. Go to  A11

    No

    GO to  A7

13. A7 CHECK THE LH (LEFT-HAND) FRONT IMPACT SEVERITY SENSOR CIRCUITS FOR AN OPEN
    
    
    • Ignition OFF.
    • Depower the SRS. Refer to: Supplemental Restraint System (SRS) Depowering .
    • Measure:

      Positive Lead	Measurement / Action	Negative Lead
      C310A-17	Courtesy of FORD MOTOR COMPANY	C1465-1
      C310A-18	Courtesy of FORD MOTOR COMPANY	C1465-2

    Are the resistances less than 0.5 ohm? 

    Yes

    GO to  A8

    No	REPAIR the circuit(s). Refer to Connector Repair Procedures for schematic and connector information. Go to  A11

14. A8 CHECK THE LEFT FRONTAL RESTRAINTS SENSOR DTC (DIAGNOSTIC TROUBLE CODE) FOR A FAULT STATUS CHANGE (NO OPERATION INDICATED)
    
    
    NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the reported fault changes, this indicates the RCM is functioning correctly and is not the source of the fault.
    • Connect: RCM C310A and C310B .
    • Connect a fused jumper wire as shown:

      Lead 1	Measurement / Action	Lead 2
      C1465-1	Courtesy of FORD MOTOR COMPANY	C1465-2

    • Repower the SRS.

      Do not  prove out the SRS at this time. Refer to: Supplemental Restraint System (SRS) Repowering .

    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.

    Did the on-demand DTC change from B1413:93 to B1413:11? 

    Yes	REMOVE the fused jumper wire and INSTALL a new LH front impact severity sensor. Refer to: Front Impact Severity Sensor . Go to  A11

    No	REMOVE the fused jumper wire and GO to  A9

15. A9 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.
    • Depower the SRS. Refer to: Supplemental Restraint System (SRS) Depowering .
    • 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 damaged, 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 Connector Repair Procedures for schematic and connector information.

    • Connect: LH Front Impact Severity Sensor C1465 .
    • Connect: RCM C310A and C310B .
    • Repower the SRS.

      Do not  prove out the SRS at this time. Refer to: Supplemental Restraint System (SRS) Repowering .

    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.

    Was the original DTC 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) . 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. Install SRS components only when directed to do so in the pinpoint test. GO to  A10

16. A10 CHECK FOR AN INTERMITTENT FAULT
    
    
    • Ignition OFF.
    • Depower the SRS. Refer to: Supplemental Restraint System (SRS) Depowering .
    • Disconnect: LH Front Impact Severity Sensor C1465 .
      • Remove the air cleaner. Refer to: Air Cleaner .

    • Disconnect: RCM C310A and C310B .
    • Inspect:
      • harness and component connectors for loose or spread terminals and loose or frayed wire connections at terminals.
      • wire harness for any damage, pinched, cut or pierced wires.
      • RCM C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation.
      • repair any concerns found. Refer to Connector Repair Procedures for schematic and connector information.

    • Connect: LH Front Impact Severity Sensor C1465 .
    • Connect: RCM C310A and C310B .
    • Repower the SRS.

      Do not  prove out the SRS at this time. Refer to: Supplemental Restraint System (SRS) Repowering .

    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.

    Was DTC B1413:11 or B1413:93 retrieved on-demand during the self-test? 

    Yes	This fault cannot be cleared until it is corrected and the DTC is no longer retrieved on-demand during self-test. For DTC B1413:11, GO to  A2. For DTC B1413:93, GO to  A5

    No	The fault is not present and cannot be recreated at this time. 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  A11

17. A11 CHECK FOR ADDITIONAL SRS (SUPPLEMENTAL RESTRAINT SYSTEM) DIAGNOSTIC TROUBLE CODES (DTCS)
    
    
    • Ignition OFF.
    • Reconnect all SRS components (if previously disconnected).
    • If previously directed to depower the SRS, repower the SRS.

      Do not  prove out the SRS at this time. Refer to: Supplemental Restraint System (SRS) Repowering .

    • 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) .

    No	The repair is complete. RETURN the vehicle to the customer.