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Pinpoint Test Ab : B1087:83 Or B1087:87

  1. AB1 CHECK IF THE DTC (DIAGNOSTIC TROUBLE CODE) SET IN THE DDM (DRIVER DOOR MODULE)

    • Review the results from the DDM self-test.

    Is DTC B1087:83 or B1087:87 set in the DDM? 

    Yes  GO to  AB2
    No  GO to  AB3

  2. AB2 ISOLATE THE WINDOW CONTROL SWITCH

    • Ignition OFF.
    • Disconnect Master Window Control Switch C535 .
    • Ignition ON.
    • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test.

    Is DTC B1087:83 or B1087:87 still present? 

    Yes  GO to  AB3
    No  INSTALL a new window control switch. REFER to: Front Door Window Control Switch .

  3. AB3 CHECK FOR VOLTAGE TO THE REAR DOOR MODULE

    • Ignition OFF.
    • Disconnect Driver Rear Door Module (DRDM) C728 (if DTC set in DDM).
    • Disconnect Passenger Rear Door Module (PRDM) C832 (if DTC set in PDM).
    • Measure:

      Left Door 

      Positive Lead Measurement / Action Negative Lead
      C728-1
      GFD66576Courtesy of FORD MOTOR COMPANY
      		 Ground

      Right Door 

      Positive Lead Measurement / Action Negative Lead
      C832-1
      GFD66576Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 11 volts? 

    Yes  GO to  AB5
    No  VERIFY the BCM fuse 29 (30A) (Driver Rear Door Module (DRDM)) or fuse 30 (30A) (Passenger Rear Door Module (PRDM)) is OK. If OK, GO to  AB4
    If not OK, REFER to the OEM WIRING DIAGRAMS (EXCEPT HYBRID) to identify the possible causes of the circuit short.

  4. AB4 CHECK THE REAR DOOR MODULE VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

    • Measure:

      Left Door 

      Positive Lead Measurement / Action Negative Lead
      C728-1
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 C2280F-1

      Right Door 

      Positive Lead Measurement / Action Negative Lead
      C832-1
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 C2280F-9

    Is the resistance less than 3 ohms? 

    Yes  GO to  AB11
    No  REPAIR the circuit.

  5. AB5 CHECK THE REAR DOOR MODULE GROUND CIRCUIT FOR AN OPEN

    • Measure:

      Left Door 

      Positive Lead Measurement / Action Negative Lead
      C728-2
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 Ground

      Right Door 

      Positive Lead Measurement / Action Negative Lead
      C832-2
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance less than 3 ohms? 

    Yes  GO to  AB6
    No  REPAIR the circuit.

  6. AB6 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO VOLTAGE

    • Disconnect DDM C501A (if DTC set in DDM).
    • Disconnect PDM C652A (if DTC set in PDM).
    • Ignition ON.
    • Measure:

      Left Door 

      Positive Lead Measurement / Action Negative Lead
      C728-16
      GFD66576Courtesy of FORD MOTOR COMPANY
      		 Ground

      Right Door 

      Positive Lead Measurement / Action Negative Lead
      C832-16
      GFD66576Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit.
    No  GO to  AB7

  7. AB7 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR A SHORT TO GROUND

    • Ignition OFF.
    • Measure:

      Left Door 

      Positive Lead Measurement / Action Negative Lead
      C728-16
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 Ground

      Right Door 

      Positive Lead Measurement / Action Negative Lead
      C832-16
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  AB8
    No  REPAIR the circuit.

  8. AB8 CHECK THE CHECK THE LIN (LOCAL INTERCONNECT NETWORK) CIRCUIT FOR AN OPEN

    • Measure:

      Left Door 

      Positive Lead Measurement / Action Negative Lead
      C728-16
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 C501A-5

      Right Door 

      Positive Lead Measurement / Action Negative Lead
      C832-16
      GFD66575Courtesy of FORD MOTOR COMPANY
      		 C652A-5

    Is the resistance less than 3 ohms? 

    Yes  GO to  AB9
    No  REPAIR the circuit.

  9. AB9 CHECK FOR CORRECT REAR DOOR MODULE OPERATION

    • Disconnect and inspect the Driver Rear Door Module (DRDM) or the Passenger Rear Door Module (PRDM) connector.
    • Repair:
      • corrosion (install new connectors or terminals - clean module pins)
      • damaged or bent pins - install new terminals pins
      • pushed-out pins - install new pins as necessary
    • Reconnect the Driver Rear Door Module (DRDM) or the Passenger Rear Door Module (PRDM) connector and make sure it seats and latches correctly.
    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    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 Driver Rear Door Module (DRDM) or the Passenger Rear Door Module (PRDM). REFER to: Rear Door Module (RDM) . TEST the system for normal operation. If the concern is still present, GO to  AB10.
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

  10. AB10 CHECK FOR CORRECT FRONT DOOR MODULE OPERATION

    • Disconnect and inspect all the DDM or PDM connectors.
    • Repair:
      • corrosion (install new connectors or terminals - clean module pins)
      • damaged or bent pins - install new terminals pins
      • pushed-out pins - install new pins as necessary
    • Reconnect the DDM or PDM connectors and make sure they seat and latch correctly.
    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    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 DDM or PDM. For a DDM, REFER to: Driver Door Module (DDM) . For a PDM, REFER to: Passenger Door Module (PDM) .
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

  11. AB11 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • Disconnect and inspect all the BCM connectors.
    • Repair:
      • corrosion (install new connectors or terminals - clean module pins)
      • damaged or bent pins - install new terminals pins
      • pushed-out pins - install new pins as necessary
    • Reconnect the BCM connectors and make sure they seat and latch correctly.
    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    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, Refer to BCM Hardware Testing .
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
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