LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System - Diagnostic Routine N - Z >> Diagnostic Routine N >> Pinpoint Test

Pinpoint Test

WARNING: Do not handle, move or change the original horizontal mounting position of the RCM while the RCM is connected and the ignition switch is ON. Failure to follow this instruction may result in the accidental deployment of the Safety Canopy® and cause serious personal injury or death.
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 Catalog Advantage or equivalent to make sure the correct component is being installed. If an incorrect SRS component is installed, DTCs  may set.
NOTE: Do not probe any impact sensor. The impact sensor cannot be tested using a multi-meter
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
  1. RETRIEVE RCM DTCs 
    1. Ignition ON.
    2. Using a scan tool, perform RCM self-test to retrieve DTCs  .

    Were any DTCs retrieved on-demand during self-test? 

    1. Yes:
      • The fault(s) cannot be cleared until corrected and the DTCs  are no longer retrieved on-demand during self-test.
      • For DTCs  B0091:11 and B0097:11, GO to 2  .
      • For DTCs  B0091:93 and B0097:93, GO to  6.
      • For DTC B0091:93 only, GO to  8.
      • For DTC B0097:93 only, GO to  11.
      • For any other DTCs  , REFER to DTC Chart: Restraint Control Module (RCM) .
    2. No
      • The fault is intermittent when present as a CMDTC  only. GO to  15.
  2. CHECK THE LEFT SIDE RESTRAINTS SENSOR 1 DTC 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 fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.
    1. Ignition OFF.
    2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    3. Disconnect Driver Front Door Side Impact Sensor C567.
    4. Repower the SRS. Do not  prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    5. Ignition ON.
    6. Using a scan tool, perform RCM self-test to retrieve DTCs  .

    Did the on-demand DTCs change from B0091:11 and B0097:11 to B0091:93? 

    1. Yes:
    2. No
      • GO to 3  .
  3. CHECK THE RIGHT SIDE RESTRAINTS SENSOR 2 DTC 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 fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.
    1. Ignition OFF.
    2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    3. Connect Driver Front Door Side Impact Sensor C567.
    4. Disconnect Passenger C-Pillar Side Impact Sensor C3249.
    5. Repower the SRS. Do not  prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    6. Ignition ON.
    7. Using a scan tool, perform RCM self-test to retrieve DTCs  .

    Did the on-demand DTC change from B0091:11 and B0097:11 to B0097:93? 

    1. Yes:
    2. No
      • GO to 4  .
  4. CHECK THE DRIVER FRONT DOOR SIDE IMPACT SENSOR FEED CIRCUIT FOR A SHORT TO GROUND AND SHORT BETWEEN SENSOR CIRCUITS
    1. Ignition OFF.
    2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    3. Disconnect Driver Front Door Side Impact Sensor C567.
    4. Disconnect RCM C310A and C310B.
    5. Measure:
      Driver Front Door Side Impact Sensor Ground
      G08041361
      G08041362
      C567 Ground
      Pin Circuit Measurement Pin Circuit
      1 VR217 (GY/YE)
      G08041363
      		 - Ground
    6. Measure:
      Driver Front Door Side Impact Sensor Driver Front Door Side Impact Sensor
      G08041364
      G08041365
      C567 C567
      Pin Circuit Measurement Pin Circuit
      1 VR217 (GY/YE)
      G08041366
      		 2 RR131 (VT/GY)

    Are the resistances greater than 10, 000 ohms? 

    1. Yes:
      • GO to 5  .
    2. No
  5. CHECK THE PASSENGER C-PILLAR SIDE IMPACT SENSOR FEED CIRCUIT FOR A SHORT TO GROUND AND SHORT BETWEEN SENSOR CIRCUITS
    1. Measure:
      Passenger C-Pillar Side Impact Sensor Ground
      G08041367
      G08041368
      C3249 Ground
      Pin Circuit Measurement Pin Circuit
      1 VR220 (VT/OG)
      G08041369
      		 - Ground
    2. Measure:
      Passenger C-Pillar Side Impact Sensor Passenger C-Pillar Side Impact Sensor
      G08041370
      G08041371
      C3249 C3249
      Pin Circuit Measurement Pin Circuit
      1 VR220 (VT/OG)
      G08041372
      		 2 RR134 (BN/BU)

    Are the resistances greater than 10, 000 ohms? 

    1. Yes:
      • GO to  14.
    2. No
  6. CHECK THE DRIVER FRONT DOOR SIDE IMPACT SENSOR CIRCUITS FOR A SHORT TO VOLTAGE (NO OPERATION INDICATED)
    1. Ignition OFF.
    2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    3. Disconnect RCM C310A and C310B.
    4. Disconnect Driver Front Door Side Impact Sensor C567.
    5. Repower the SRS. Do not  prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    6. Ignition ON.
    7. Measure:
      Driver Front Door Side Impact Sensor Ground
      G08041373
      G08041374
      C567 Ground
      Pin Circuit Measurement Pin Circuit
      1 VR217 (GY/YE)
      G08041375
      		 - Ground
      2 RR131 (VT/GY)
      G08041376
      		 - Ground

    Is any voltage present? 

    1. Yes:
    2. No
      • GO to 7  .
  7. CHECK THE PASSENGER C-PILLAR SIDE IMPACT SENSOR CIRCUITS FOR A SHORT TO VOLTAGE (NO OPERATION INDICATED)
    1. Ignition OFF.
    2. Disconnect Passenger C-Pillar Side Impact Sensor C3249.
    3. Ignition ON.
    4. Measure:
      Passenger C-Pillar Side Impact Sensor Ground
      G08041377
      G08041378
      C3249 Ground
      Pin Circuit Measurement Pin Circuit
      1 VR220 (VT/OG)
      G08041379
      		 - Ground
      2 RR134 (BN/BU)
      G08041380
      		 - Ground

    Is any voltage present? 

    1. Yes:
    2. No
      • GO to  14.
  8. CHECK THE DRIVER FRONT DOOR SIDE IMPACT SENSOR AND RCM CONNECTIONS (NO OPERATION INDICATED)
    1. Ignition OFF.
    2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    3. Gain access to the driver front door side impact sensor and inspect C567 to be fully seated and locked. Seat and lock the connector as necessary. REFER to Side Impact Sensor - Front Door .
    4. Gain access to the RCM and inspect C310A and C310B to be fully seated and locked. Seat and lock the connector(s) as necessary. REFER to Restraints Control Module (RCM) .
    5. Repower the SRS. Do not  prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    6. Ignition ON.
    7. Using a scan tool, perform RCM self-test to retrieve DTCs  .

    Was DTC B0091:93 retrieved on-demand during self-test? 

    1. Yes:
      • GO to 9  .
    2. No
      • Fault corrected. GO to  16.
  9. CHECK THE DRIVER FRONT DOOR SIDE IMPACT SENSOR CIRCUITS FOR AN OPEN (NO OPERATION INDICATED)
    1. Ignition OFF.
    2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    3. Disconnect RCM C310A and C310B.
    4. Disconnect Driver Front Door Side Impact Sensor C567.
    5. Measure:
      RCM Driver Front Door Side Impact Sensor
      G08041381
      G08041382
      C310B C567
      Pin Circuit Measurement Pin Circuit
      36 VR217 (GY/YE)
      G08041383
      		 1 VR217 (GY/YE)
      35 RR131 (VT/GY)
      G08041384
      		 2 RR131 (VT/GY)

    Are the resistances less than 0.5 ohm? 

    1. Yes:
      • GO to 10  .
    2. No
  10. CHECK THE LEFT SIDE RESTRAINTS SENSOR 1 DTC 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 fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.
    1. Connect RCM C310A and C310B.
    2. Connect a fused jumper wire:
      Driver Front Door Side Impact Sensor Driver Front Door Side Impact Sensor
      G08041385
      G08041386
      C567 C567
      Pin Circuit Measurement Pin Circuit
      1 VR217 (GY/YE)
      G08041387
      		 2 RR131 (VT/GY)
    3. Repower the SRS. Do not  prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    4. Ignition ON.
    5. Using a scan tool, perform RCM self-test to retrieve DTCs  .

    Did the DTC change from B0091:93 to B0091:11 and B0097:11? 

    1. Yes:
    2. No
      • REMOVE the fused jumper wire and GO to  14.
  11. CHECK THE PASSENGER C-PILLAR SIDE IMPACT SENSOR AND RCM CONNECTIONS (NO OPERATION INDICATED)
    1. Ignition OFF.
    2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    3. Gain access to the passenger C-pillar side impact sensor and inspect C3249 to be fully seated and locked. Seat and lock the connector as necessary. REFER to Side Impact Sensor - C-Pillar .
    4. Gain access to the RCM and inspect C310A and C310B to be fully seated and locked. Seat and lock the connector(s) as necessary. REFER to Restraints Control Module (RCM) .
    5. Repower the SRS. Do not  prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    6. Ignition ON.
    7. Using a scan tool, perform RCM self-test to retrieve DTCs  .

    Was DTC B0097:93 retrieved on-demand during self-test? 

    1. Yes:
      • GO to 12  .
    2. No
      • Fault corrected. GO to  16.
  12. CHECK THE PASSENGER C-PILLAR SIDE IMPACT SENSOR CIRCUITS FOR AN OPEN (NO OPERATION INDICATED)
    1. Ignition OFF.
    2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    3. Disconnect RCM C310A and C310B.
    4. Disconnect Passenger C-Pillar Side Impact Sensor C3249.
    5. Measure:
      RCM Passenger C-Pillar Side Impact Sensor
      G08041388
      G08041389
      C310B C3249
      Pin Circuit Measurement Pin Circuit
      37 VR220 (VT/OG)
      G08041390
      		 1 VR220 (VT/OG)
      38 RR134 (BN/BU)
      G08041391
      		 2 RR134 (BN/BU)

    Are the resistances less than 0.5 ohm? 

    1. Yes:
      • GO to 13  .
    2. No
  13. CHECK THE RIGHT SIDE RESTRAINTS SENSOR 2 DTC FOR A FAULT STATUS CHANGE (NO OPERATION INDICATED)
    NOTE: This pinpoint test step will attempt to change the fault reported by the RCM by inducing a different fault condition. If the fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.
    1. Connect RCM C310A and C310B.
    2. Connect a fused jumper wire:
      Passenger C-Pillar Side Impact Sensor Passenger C-Pillar Side Impact Sensor
      G08041392
      G08041393
      C3249 C3249
      Pin Circuit Measurement Pin Circuit
      1 VR220 (VT/OG)
      G08041394
      		 2 RR134 (BN/BU)
    3. Repower the SRS. Do not  prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    4. Ignition ON.
    5. Using a scan tool, perform RCM self-test to retrieve DTCs  .

    Did the DTC change from B0097:93 to B0097:11 and B0091:11? 

    1. Yes:
    2. No
      • REMOVE the fused jumper wire and GO to 14  .
  14. CONFIRM THE RCM FAULT
    NOTE: Make sure all SRS components and the RCM electrical connectors are connected before carrying out the self-test. If not, DTCs  will be recorded.
    1. Ignition OFF.
    2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    3. 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 CPA lever/lock for correct operation. REFER to Restraints Control Module (RCM) .
      • repair any concerns found.

        Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.

    4. Connect RCM C310A and C310B (if previously disconnected).
    5. Connect Driver Front Door Side Impact Sensor C567 (if previously disconnected).
    6. Connect Passenger C-Pillar Side Impact Sensor C3249 (if previously disconnected).
    7. Repower the SRS. Do not  prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    8. Ignition ON.
    9. Using a scan tool, perform RCM self-test to retrieve DTCs  .

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

    1. Yes:
      • CHECK OASIS for any applicable TSBs  . If a TSB exists for this concern, discontinue this test and follow TSB instructions. If no TSBs  address this concern, INSTALL a new RCM. REFER to Restraints Control Module (RCM) . GO to  16.
    2. 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 15  .
  15. CHECK FOR AN INTERMITTENT FAULT
    1. Ignition OFF.
    2. Depower the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    3. Disconnect the affected sensor(s) (Driver Front Door Side Impact Sensor C567 and/or Passenger C-Pillar Side Impact Sensor C3249).
    4. Disconnect RCM C310A and C310B.
    5. Inspect for the following:
      • inspect harness and component 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.
      • inspect RCM C310A and C310B CPA lever/lock for correct operation. REFER to Restraints Control Module (RCM) .
      • repair any concerns found.

        Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.

    6. Connect the affected sensor(s) (Driver Front Door Side Impact Sensor C567 and/or Passenger C-Pillar Side Impact Sensor C3249).
    7. Connect RCM C310A and C310B (if previously disconnected).
    8. Repower the SRS. Do not  prove out the SRS at this time. REFER to Supplemental Restraint System (SRS) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    9. Ignition ON.
    10. Using a scan tool, perform RCM self-test to retrieve DTCs  .

    Was DTC B0091:11, B0091:93, B0097:11 or B0097:93 retrieved on-demand during self-test? 

    1. Yes:
      • Fault(s) cannot be cleared until corrected and the DTC is no longer retrieved on-demand during self-test.
      • For DTC B0091:11 and B0097:11, GO to  2.
      • For DTC B0091:93 and B0097:93, GO to  6.
      • For DTC B0091:93 only, GO to  8.
      • For DTC B0097:93 only, GO to  11.
    2. 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 16  .
  16. CHECK FOR ADDITIONAL SRS DTCs 
    1. Ignition OFF.
      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.
    2. Reconnect all SRS components (if previously disconnected).
    3. 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) Depowering and Repowering - with Intelligent Access (IA) or REFER to Supplemental Restraint System (SRS) Depowering and Repowering - without Intelligent Access (IA) .
    4. Ignition ON.
    5. Using a scan tool, perform the Restraints  self-test to retrieve DTCs  .
      NOTE: When selecting Restraints from the Self Test menu, DTCs  are retrieved from the RCM and OCSM.

    Are any RCM and/or OCSM DTCs retrieved on-demand during self-test? 

    1. Yes:
    2. No
      • CLEAR all RCM and OCSM CMDTCs  . PROVE OUT the SRS. The repair is complete. RETURN the vehicle to the customer.
scientia non olet · About LEMON Manuals