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Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1795 (Supplemental Restraint System) >> Diagnosis And Testing >> Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Test - Supplemental Restraint System (SRS) >> Pinpoint Test N: DTCs B0091:11, B0091:93, B0097:11 and B0097:93 >> PINPOINT TEST N: DTCs B0091:11, B0091:93, B0097:11 AND B0097:93

PINPOINT TEST N: DTCs B0091:11, B0091:93, B0097:11 AND B0097:93

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use the correct probe adapter(s) from the Flex Probe Kit when taking measurements. Failure to use the correct probe adapter(s) may damage the connector.
Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.
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: Supplemental Restraint System (SRS) components should only be disconnected or reconnected when instructed to do so within a pinpoint test step. Failure to follow this instruction may result in incorrect diagnosis of the SRS.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
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.
  1. N1 RETRIEVE RCM DTCs 
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM.
    • Was any DTCs retrieved on-demand during self-test? 
    • Yes  : Fault(s) cannot be cleared until corrected and the DTC(s) are no longer retrieved on-demand during self-test.

      For DTC B0091:11 AND  B0097:11, GO to N2  .

      For DTC B0091:93 AND  B0097:93, GO to  N6.

      For DTC B0091:93, ONLY  , GO to  N8.

      For DTC B0097:93, ONLY  , GO to  N11.

      For any other DTCs, REFER to the DTC TABLE  in this service information.

    • No  : The fault is intermittent when present as a Continuous Memory Diagnostic Trouble Code (CMDTC) only. GO to  N15.
  2. N2 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.
  3. N3 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.
    • Yes  : INSTALL a new passenger second row C-pillar side impact sensor. REFER to SIDE IMPACT SENSOR - C-PILLAR  in this service information. GO to  N16.
    • No  : GO to N4  .
  4. N4 CHECK THE DRIVER FRONT DOOR SIDE IMPACT SENSOR FEED CIRCUIT FOR A SHORT TO GROUND AND SHORT BETWEEN SENSOR CIRCUITS 
    • Ignition OFF.
    • Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this service information.
    • Disconnect: Driver Front Door Side Impact Sensor C567.
    • Disconnect: RCM C310A and C310B.
    • Measure the resistance between driver front door side impact sensor
      • C567-1, circuit VR217 (GY/YE), harness side and ground.
      • C567-1, circuit VR217 (GY/YE), harness side and C567-2, circuit RR131 (VT/GY), harness side.
        Fig 1: Checking Driver Front Door Side Impact Sensor Feed Circuit For Short To Ground And Short Between Sensor Circuits
        G07783862Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 
    • Yes  : GO to N5  .
    • No  : REPAIR circuit VR217 (GY/YE) and/or RR131 (VT/ GY). Refer to SYSTEM WIRING DIAGRAMS article for schematic and connector information. GO to  N16.
  5. N5 CHECK THE PASSENGER SECOND ROW C-PILLAR SIDE IMPACT SENSOR FEED CIRCUIT FOR A SHORT TO GROUND AND SHORT BETWEEN SENSOR CIRCUITS 
    • Measure the resistance between passenger second row C-pillar side impact sensor:
      • C3249-1, circuit VR220 (VT/OG), harness side and ground.
      • C3249-1, circuit VR220 (VT/OG), harness side and C3249-2, circuit RR134 (BN/BU), harness side.
        Fig 2: Checking Passenger Second Row C-Pillar Side Impact Sensor Feed Circuit For Short To Ground And Short Between Sensor Circuits
        G07783863Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 
    • Yes  : GO to  N14.
    • No  : REPAIR circuit VR220 (VT/OG) and/or RR134 (BN/ BU). Refer to SYSTEM WIRING DIAGRAMS article for schematic and connector information.. GO to  N16.
  6. N6 CHECK THE DRIVER FRONT DOOR SIDE IMPACT SENSOR CIRCUITS FOR A SHORT TO VOLTAGE (NO OPERATION INDICATED) 
    • Ignition OFF.
    • Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this service information.
    • Disconnect: RCM C310A and C310B.
    • Disconnect: Driver Front Door Side Impact Sensor C567.
    • Repower the SRS. Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this service information.
    • Ignition ON.
    • Measure the voltage between driver front door side impact sensor:
      • C567-1, circuit VR217 (GY/YE), harness side and ground.
      • C567-2, circuit RR131 (VT/GY), harness side and ground.
        Fig 3: Checking Driver Front Door Side Impact Sensor Circuits For Short To Voltage (No Operation Indicated)
        G07783864Courtesy of FORD MOTOR CO.
    • Is voltage present on either circuit? 
    • Yes  : REPAIR circuit VR217 (GY/YE) or RR131 (VT/GY). Refer to SYSTEM WIRING DIAGRAMS article for schematic and connector information. GO to  N16.
    • No  : GO to N7  .
  7. N7 CHECK THE PASSENGER SECOND ROW C-PILLAR SIDE IMPACT SENSOR CIRCUITS FOR A SHORT TO VOLTAGE (NO OPERATION INDICATED) 
    • Ignition OFF.
    • Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this service information.
    • Disconnect: Passenger Second Row C-Pillar Side Impact Sensor C3249.
    • Repower the SRS. Do not prove out at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this service information.
    • Ignition ON.
    • Measure the voltage between passenger second row C-pillar side impact sensor:
      • C3249-1, circuit VR220 (VT/OG), harness side and ground.
      • C3249-2, circuit RR134 (BN/BU), harness side and ground.
        Fig 4: Checking Passenger Second Row C-Pillar Side Impact Sensor Circuits For Short To Voltage (No Operation Indicated)
        G07783865Courtesy of FORD MOTOR CO.
    • Is voltage present on either circuit? 
    • Yes  : REPAIR circuit VR220 (VT/OG) or RR134 (BN/BU). Refer to SYSTEM WIRING DIAGRAMS article for schematic and connector information. GO to  N16.
    • No  : GO to  N14.
  8. N8 CHECK THE DRIVER FRONT DOOR SIDE IMPACT SENSOR AND RCM CONNECTIONS (NO OPERATION INDICATED) 
    • 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.
    • 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  in this service information.
    • 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)  in this service information.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM.
    • Was DTC B0091:93 retrieved on-demand during self-test? 
    • Yes  : GO to N9  .
    • No  : Fault corrected. GO to  N16.
  9. N9 CHECK THE DRIVER FRONT DOOR SIDE IMPACT SENSOR CIRCUITS FOR AN OPEN (NO OPERATION INDICATED) 
    • Ignition OFF.
    • Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this service information.
    • Disconnect: RCM C310A and C310B.
    • Disconnect: Driver Front Door Side Impact Sensor C567.
    • Measure the resistance between RCM C310B, harness side and driver front door side impact sensor C567, harness side using the following chart.
      RCM REFERENCE CHART

      RCM Circuit Driver Front Door Side Impact Sensor
      C310B-36 VR217 (GY/YE) C567-1
      C310B-35 RR131 (VT/GY) C567-2
      Fig 5: Measuring Resistance Between RCM C310B And Driver Front Door Side Impact Sensor C567, Harness Side
      G07783866Courtesy of FORD MOTOR CO.
    • Are the resistances less than 0.5 ohm? 
    • Yes  : GO to N10  .
    • No  : REPAIR circuit VR217 (GY/YE) or RR131 (VT/GY). Refer to SYSTEM WIRING DIAGRAMS article for schematic and connector information. GO to  N16.
  10. N10 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.
    • Connect: RCM C310A and C310B.
    • Connect a fused jumper wire between driver front door side impact sensor C567-1, circuit VR217 (GY/YE), harness side and C567-2, circuit RR131 (VT/GY), harness side.
      Fig 6: Connecting Fused Jumper Wire Between Driver Front Door Side Impact Sensor C567-1, Circuit VR217 (GY/YE) And C567-2, Circuit RR131 (VT/GY), Harness Side
      G07783867Courtesy of FORD MOTOR CO.
    • Repower the SRS. Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this service information.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM.
    • Did the DTC change from B0091:93 to B0091:11 and B0097:11? 
    • Yes  : REMOVE the fused jumper wire and INSTALL a new driver front door side impact sensor. REFER to SIDE IMPACT SENSOR - FRONT DOOR  in this service information. GO to  N16.
    • No  : REMOVE the fused jumper wire and GO to  N14.
  11. N11 CHECK THE PASSENGER SECOND ROW C-PILLAR SIDE IMPACT SENSOR AND RCM CONNECTIONS (NO OPERATION INDICATED) 
    • 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.
    • Gain access to the passenger second row 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  in this service information.
    • 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)  in this service information.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM.
    • Was DTC B0097:93 retrieved on-demand during self-test? 
    • Yes  : GO to N12  .
    • No  : Fault corrected. GO to  N16.
  12. N12 CHECK THE PASSENGER SECOND ROW C-PILLAR SIDE IMPACT SENSOR CIRCUITS FOR AN OPEN (NO OPERATION INDICATED) 
    • Ignition OFF.
    • Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this service information.
    • Disconnect: RCM C310A and C310B.
    • Disconnect: Passenger Second Row C-Pillar Side Impact Sensor C3249.
    • Measure the resistance between RCM C310B, harness side and passenger second row C-pillar side impact sensor C3249, harness side using the following chart.
      RCM REFERENCE CHART

      RCM Circuit Passenger Second Row C-pillar Side Impact Sensor
      C310B-37 VR220 (VT/OG) C3249-1
      C310B-38 RR134 (BN/BU) C3249-2
      Fig 7: Measuring Resistance Between RCM C310B And Passenger Second Row C-Pillar Side Impact Sensor C3249, Harness Side
      G07783868Courtesy of FORD MOTOR CO.
    • Are the resistances less than 0.5 ohm? 
    • Yes  : GO to N13  .
    • No  : REPAIR circuit VR220 (VT/OG) or RR134 (BN/BU). Refer to SYSTEM WIRING DIAGRAMS article for schematic and connector information. GO to  N16.
  13. N13 CHECK THE RIGHT SIDE RESTRAINTS SENSOR 2 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.
    • Connect: RCM C310A and C310B.
    • Connect a fused jumper wire between passenger second row C-pillar side impact sensor C3249-1, circuit VR220 (VT/OG), harness side and C3249-2, circuit RR134 (BN/BU), harness side.
      Fig 8: Connecting Fused Jumper Wire Between Passenger Second Row C-Pillar Side Impact Sensor C3249-1, Circuit VR220 (VT/OG) And C3249-2, Circuit RR134 (BN/BU)
      G07783869Courtesy of FORD MOTOR CO.
    • Repower the SRS. Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this service information.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM.
    • Did the DTC change from B0097:93 to B0097:11 and B0091:11? 
    • Yes  : REMOVE the fused jumper wire and INSTALL a new passenger second row C-pillar side impact sensor. REFER to SIDE IMPACT SENSOR - C-PILLAR  in this service information. GO to  N16.
    • No  : REMOVE the fused jumper wire and GO to N14  .
  14. N14 CONFIRM THE RCM FAULT 
    NOTE: Make sure all restraint system components and the RCM electrical connectors are connected before carrying out the self-test. If not, DTCs will be recorded.
    • Ignition OFF.
    • Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this service information.
    • Prior to reconnecting any previously disconnected SRS component:
      • inspect connector(s) (including any in-line 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. Refer to RESTRAINTS CONTROL MODULE (RCM)  in this service information.
      • repair any concerns found. Refer to SYSTEM WIRING DIAGRAMS article for schematic and connector information.
    • Connect: RCM C310A and C310B.
    • Connect: Driver Front Door Side Impact Sensor C567 (if previously disconnected).
    • Connect: Passenger Second Row C-Pillar Side Impact Sensor C3249 (if previously disconnected).
    • Repower the SRS. Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this service information.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM.
    • Was the original DTC retrieved on-demand during self-test? 
    • Yes  : INSTALL a new RCM. REFER to RESTRAINTS CONTROL MODULE (RCM)  in this service information. GO to  N16.
    • 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 N15  .
  15. N15 CHECK FOR AN INTERMITTENT FAULT 
    • Ignition OFF.
    • Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this service information.
    • Disconnect: Affected Driver Front Door Side Impact Sensor C567 and/or Passenger Second Row C-Pillar Side Impact Sensor C3249.
    • Disconnect: RCM C310A and C310B.
    • 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)  in this service information.
      • repair any concerns found. Refer to SYSTEM WIRING DIAGRAMS article for schematic and connector information.
    • Connect: All Previously Disconnected Component(s)/Connector(s).
    • Repower the SRS. Do not prove out the SRS at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this service information.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM.
    • Was DTC B0091:11, B0091:93, B0097:11 or B0097:93 retrieved on-demand during self-test? 
    • 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  N2.

      For DTC B0091:93 AND  B0097:93, GO to  N6.

      For DTC B0091:93 ONLY  , GO to  N8.

      For DTC B0097:93 ONLY  , GO to  N11.

    • No  : The fault is not present and cannot be recreated at this time. 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 N16  .
  16. N16 CHECK FOR ADDITIONAL SRS DTCs 
    • 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.
    • 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) DEPOWERING AND REPOWERING  in this service information.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - Restraints.
      NOTE: When selecting Restraints from the Self Test menu, DTCs will be retrieved from the RCM and OCSM.
    • Was any RCM and/or OCSM DTCs retrieved on-demand during self-test? 
    • Yes  : Do not clear any DTCs until all DTCs have been resolved. GO to the DTC TABLES  in this service information for pinpoint test direction.
    • No  : CLEAR all RCM and OCSM CMDTCs. PROVE OUT the SRS. Repair is complete. RETURN the vehicle to the customer.
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