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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1975 (Supplemental Restraint System) >> Diagnosis And Testing >> Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Test - Supplemental Restraint System (SRS) >> Pinpoint Test V: DTC C1982 >> Pinpoint Test V: C1982

Pinpoint Test V: C1982

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Do not handle, move or change the original horizontal mounting position of the restraints control module (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.
WARNING: Never probe the electrical connectors on air bag, Safety Canopy® or side air curtain modules. Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
WARNING: Never disassemble or tamper with safety belt buckle/retractor pretensioners or adaptive load limiting retractors or probe the electrical connectors. Failure to follow this instruction may result in the accidental deployment of the safety belt pretensioners or adaptive load limiting retractors which increases the risk of serious personal injury or death.
NOTE: Use the correct probe adapter(s) from the Flex Probe Kit when making 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: 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.
  1. V1 RETRIEVE RCM DTCs 
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .
    • Was DTC C1982 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. GO to V2  .
    • No:  This is an intermittent fault when present as a Continuous Memory Diagnostic Trouble Code (CMDTC) only. GO to  V4.
  2. V2 CHECK DRIVER SEAT TRACK POSITION SENSOR CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: RCM  C310A and C310B.
    • Disconnect: Driver Seat Track Position Sensor C356.
    • Disconnect: Driver Side Air Bag Module C328.
    • Disconnect: Driver Safety Belt Retractor Pretensioner C323.
    • Repower the SRS  . Do not  prove out the SRS  at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Ignition ON.
    • Measure the voltage between driver seat track position sensor C356-2, circuit VR215 (YE/VT), harness side and ground.
      Fig 1: Measuring Voltage Between Driver Seat Track Position Sensor C356-2 And Ground
      G06063789Courtesy of FORD MOTOR CO.
    • Is any voltage present? 
    • Yes:  REPAIR circuit VR215 (YE/VT). GO to  V5.
    • No:  GO to V3  .
  3. V3 CONFIRM THE RCM FAULT 
    NOTE: Make sure all restraint system components, sensor electrical connectors and the RCM  electrical connectors are connected before carrying out the on-demand self test. If not, DTCs will be recorded.
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • 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 C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation. Refer to RESTRAINTS CONTROL MODULE (RCM) .
      • repair any concerns found.

        Refer to SYSTEM WIRING DIAGRAMS for Edge or SYSTEM WIRING DIAGRAMS for MKX for schematic and connector information.

    • Connect: RCM  C310A and C310B.
    • Connect: Driver Seat Track Position Sensor C356.
    • Repower the SRS  . Do not  prove out the SRS  at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .
    • Was DTC C1982 retrieved on-demand during self-test? 
    • Yes:  INSTALL a new RCM  . REFER to RESTRAINTS CONTROL MODULE (RCM) . GO to  V5.
    • 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 V4  .
  4. V4 CHECK FOR AN INTERMITTENT FAULT 
    • 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.
    • Disconnect driver seat track position sensor C356:
      • inspect connector(s) (including any in-line connectors) for corrosion, 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 SYSTEM WIRING DIAGRAMS for Edge or SYSTEM WIRING DIAGRAMS for MKX for schematic and connector information.

    • Connect: All Previously Disconnected Component (s)/Connector(s).
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .
    • Was DTC C1982 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. GO to  V2.
    • No:  CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key frequently. 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  . REPAIR any intermittent wiring, terminal or connector concerns found. GO to V5  .
  5. V5 CHECK FOR ADDITIONAL SRS 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).
    • 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 .
    • 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  .
    • Are 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 CHARTS  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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