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Pinpoint Test Ah : The PRNDL/PRNDM Indicator Is Never On Or Never Displays P

  1. Normal Operation and Fault Conditions 

    See PRNDL/PRNDM. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .

    If the transmission gear display or transmission gear display mode message is missing for less than 5 seconds, the PRNDL/PRNDM display remains in the last indication state (on or off), based upon the last message received.

    If the transmission gear display or transmission gear display mode message is missing for 5 seconds or longer, the IPC defaults the PRNDL/PRNDM display off.

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    IPC P1706:00 High Vehicle Speed Observed in Park: No Sub Type Information A continuous and on-demand DTC that sets in the IPC if the IPC detects a park detect input with vehicle speed over 16 km/h (10 mph), indicating the vehicle is in park while in motion.

    Possible Sources 

    • Wiring, terminals or connectors
    • Communication concern
    • Park detect switch (part of the shift lever)
    • Transmission concern
    • GWM
    • BCM
    • PCM
    • IPC

    Visual Inspection and Pre-checks 

    • Verify the vehicle is not in transport mode.

  2. AH1 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST

    • Ignition ON.

    • Using a diagnostic scan tool, perform the IPC self-test.

    Are any DTCs recorded? 

    Yes  For DTC P1706:00, GO to  AH5 For all other Diagnostic Trouble Codes (DTCs), REFER to Diagnostic Trouble Code (DTC) Chart .
    No  GO to  AH2

  3. AH2 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

    • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to: Communications Network .
    No  GO to  AH3

  4. AH3 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST

    • Using a diagnostic scan tool, perform the PCM self-test.

    Are any transmission related DTCs recorded? 

    Yes  DIAGNOSE all PCM Diagnostic Trouble Codes (DTCs). REFER to the appropriate Electronic Engine Controls article.
    No  If equipped with a gearshift lever, GO to  AH4 If equipped with a rotary shifter, GO to  AH15

  5. AH4 PERFORM THE BCM (BODY CONTROL MODULE) SELF-TEST

    • Using a diagnostic scan tool, perform the BCM self-test.

    Are any DTCs recorded? 

    Yes  REFER to: Body Control Module (BCM) .
    No  GO to  AH5

  6. AH5 BYPASS THE SELECTOR LEVER AND CHECK THE IPC (INSTRUMENT PANEL CLUSTER) PARK DETECT INPUT

    • Ignition OFF.

    • Disconnect Selector Lever C2008.

    • Connect a fused jumper wire:
      Lead 1 Measurement / Action Lead 2
      C2008-2
      GFD515749Courtesy of FORD MOTOR COMPANY
      		 Ground

    • Ignition ON.

    • Monitor the PRNDL indicator with the fused jumper wire installed and with the fused jumper wire removed.

    Does the PRNDL display P with the fused jumper wire connected and blank with the fused jumper wire disconnected? 

    Yes  REMOVE the fused jumper wire. GO to  AH8
    No  REMOVE the fused jumper wire. GO to  AH6

  7. AH6 CHECK THE SELECTOR LEVER INPUT CIRCUIT FOR AN OPEN

    • Ignition OFF.

    • Disconnect IPC C220.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C220-4
      GFD515748Courtesy of FORD MOTOR COMPANY
      		 C2008-2

    Is the resistance less than 3 ohms? 

    Yes  GO to  AH7
    No  REPAIR the circuit.

  8. AH7 CHECK THE SELECTOR LEVER INPUT CIRCUIT FOR A SHORT TO GROUND

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C220-4
      GFD515748Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  AH15
    No  REPAIR the circuit.

  9. AH8 CHECK THE PARK DETECT SWITCH CONTROL CIRCUIT FOR A SHORT TO VOLTAGE

    • Ignition OFF.

    • Disconnect IPC C220.

    • Disconnect BCM C2280B.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280B-46
      GFD515750Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  GO to  AH9
    No  GO to  AH10

  10. AH9 CHECK THE SELECTOR LEVER CONTROL CIRCUIT FOR A SHORT TO VOLTAGE

    • Ignition OFF.

    • Disconnect Selector Lever C2008.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280B-46
      GFD515750Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit.
    No  INSTALL a new selector lever. REFER to: Selector Lever Assembly .

  11. AH10 CHECK THE PARK DETECT SWITCH CONTROL CIRCUIT FOR AN OPEN

    • Ignition OFF.

    • Disconnect Selector Lever C2008.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280B-46
      GFD515748Courtesy of FORD MOTOR COMPANY
      		 C2008-4

    Is the resistance less than 3 ohms? 

    Yes  GO to  AH11
    No  REPAIR the circuit.

  12. AH11 CHECK THE PARK DETECT SWITCH CONTROL CIRCUIT FOR A SHORT TO GROUND

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280B-46
      GFD515748Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  AH12
    No  REPAIR the circuit.

  13. AH12 CHECK THE PARK DETECT SWITCH OPERATION IN PARK

    • Place the selector lever in PARK (P).

    • With the selector lever in PARK (P), measure:
      Positive Lead Measurement / Action Negative Lead
      Selector Lever Pin 4 (Component Side)
      GFD515748Courtesy of FORD MOTOR COMPANY
      		 Selector Lever Pin 2 (Component Side)

    Is the resistance less than 3 ohms? 

    Yes  GO to  AH13
    No  INSTALL a new selector lever. REFER to: Selector Lever Assembly .

  14. AH13 CHECK THE PARK DETECT SWITCH OPERATION OUT OF PARK

    • Apply the parking brake.

    • Move the selector lever out of PARK (P).

    • With the selector lever out of PARK (P), measure:
      Positive Lead Measurement / Action Negative Lead
      Selector Lever Pin 4 (Component Side)
      GFD515748Courtesy of FORD MOTOR COMPANY
      		 Selector Lever Pin 2 (Component Side)

    Is the resistance greater than 3 ohms? 

    Yes  GO to  AH14
    No  INSTALL a new selector lever. REFER to: Selector Lever Assembly .

  15. AH14 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect the BCM connectors.

    • Repair:

      • corrosion (install new connector 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. 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 BCM. Refer to Body Control Module (BCM) .
    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.

  16. AH15 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION

    • Ignition OFF.

    • Disconnect and inspect the IPC connector.

    • Repair:

      • corrosion (install new connector or terminals - clean module pins)
      • damaged or bent pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary

    • Reconnect the IPC connector. 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 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 IPC. REFER to: Instrument Panel Cluster (IPC) .
    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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