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Pinpoint Test L: All Door Locks Are Inoperative From One Door Lock Control Switch

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
  1. Refer to REMOTE KEYLESS ENTRY AND ALARM for schematic and connector information.

    Normal Operation and Fault Conditions 

    REFER to: Handles, Locks, Latches and Entry Systems - System Operation and Component Description .

    Possible Sources 

    • Wiring, terminals or connectors
    • Door lock control switch
    • PDM
    • DDM

    Visual Inspection and Pre-checks 

    • Check the door lock control switch for damage.

  2. L1 CHECK FOR COMMUNICATION TO THE DDM (DRIVER DOOR MODULE) AND PDM (PASSENGER DOOR MODULE)

    • Ignition ON.

    • Using a diagnostic scan tool, carry out the network test.

    Does the DDM and the PDM pass the network test? 

    Yes  GO to  L2
    No  REFER to: ETHERNET MODULE COMMUNICATIONS NETWORK .

  3. L2 BYPASS THE DOOR LOCK CONTROL SWITCH

    • Ignition OFF.

    • Disconnect suspect door lock control switch.

    • For the driver door lock control switch, connect:
      Positive Lead Measurement / Action Negative Lead
      C541-2, (with memory seats)
      GFD562064Courtesy of FORD MOTOR COMPANY
      		 C541-3
      Positive Lead Measurement / Action Negative Lead
      C505-4, (without memory seats)
      GFD562064Courtesy of FORD MOTOR COMPANY
      		 C505-3

    • For the passenger door lock control switch, connect:
      Positive Lead Measurement / Action Negative Lead
      C605-1
      GFD562064Courtesy of FORD MOTOR COMPANY
      		 C605-2

    • Remove the fused jumper wire.

    • For the driver door lock control switch, connect:
      Positive Lead Measurement / Action Negative Lead
      C541-1, (with memory seats)
      GFD562064Courtesy of FORD MOTOR COMPANY
      		 C541-3
      Positive Lead Measurement / Action Negative Lead
      C505-2, (without memory seats)
      GFD562064Courtesy of FORD MOTOR COMPANY
      		 C505-3

    • For the passenger door lock control switch, connect:
      Positive Lead Measurement / Action Negative Lead
      C605-3
      GFD562064Courtesy of FORD MOTOR COMPANY
      		 C605-2

    • Remove the fused jumper wire.

    Do the doors lock and unlock? 

    Yes  INSTALL a new door lock control switch. REFER to: Front Door Lock Control Switch .
    No  GO to  L3

  4. L3 CHECK THE DOOR LOCK CONTROL SWITCH GROUND CIRCUIT FOR AN OPEN

    • Disconnect DDM C501B (driver door lock control switch).

    • Disconnect PDM C652B (passenger door lock control switch).

    • For the driver door lock control switch, measure:
      Positive Lead Measurement / Action Negative Lead
      C541-3, (with memory seats)
      GFD561510Courtesy of FORD MOTOR COMPANY
      		 C501B-16
      Positive Lead Measurement / Action Negative Lead
      C505-3, (without memory seats)
      GFD561510Courtesy of FORD MOTOR COMPANY
      		 C501B-16

    • For the passenger door lock control switch, measure:
      Positive Lead Measurement / Action Negative Lead
      C605-2
      GFD561510Courtesy of FORD MOTOR COMPANY
      		 C652B-16

    Is the resistance less than 3 ohms? 

    Yes  For the concern with the passenger door lock control switch, GO to  L4 For the concern with the driver door lock control switch, GO to  L5
    No  REPAIR the circuit.

  5. L4 CHECK FOR CORRECT PDM (PASSENGER DOOR MODULE) OPERATION

    • Disconnect and inspect all the 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 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 service articles: TSB, GSB, SSM, or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new 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.

  6. L5 CHECK FOR CORRECT DDM (DRIVER DOOR MODULE) OPERATION

    • Disconnect and inspect all the DDM 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 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 service articles: TSB, GSB, SSM, or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DDM. REFER to: Driver Door Module (DDM) .
    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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