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Home >> Audi >> 2014 >> A5 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 767 (Handles, Locks, Latches And Entry Systems) >> Diagnosis And Testing >> Handles, Locks, Latches and Entry Systems - Without Intelligent Access (IA) >> Pinpoint Tests >> Pinpoint Test O : The Doors Do Not Lock/Unlock Using The Keyless Entry Keypad >> Pinpoint Test O : The Doors Do Not Lock/Unlock Using The Keyless Entry Keypad

Pinpoint Test O : The Doors Do Not Lock/Unlock Using The Keyless Entry Keypad

WARNING: This page is about a different car, the 2016 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

  1. O1 CHECK POWER LOCK OPERATION FROM THE DOOR LOCK CONTROL SWITCH

    • Press the lock and unlock button on the door lock control switch.

    Do the doors lock and unlock? 

    Yes  GO to  O2.
    No  GO to Pinpoint Test I .

  2. O2 CHECK FOR BCM DTC B121B:01

    • Ignition ON.
    • Using a diagnostic scan tool, carry out the BCM self-test.

    Is DTC B121B:01 present? 

    Yes  GO to  O3.
    No  GO to  O5.

  3. O3 ISOLATE THE KEYLESS ENTRY KEYPAD

    • Ignition OFF.
    • Disconnect: Keyless Entry Keypad C500 .
    • Ignition ON.
    • Using a diagnostic scan tool, clear the BCM DTCs.
    • Using a diagnostic scan tool, carry out the BCM self-test.

    Is DTC B121B:01 still present? 

    Yes  GO to  O4.
    No  INSTALL a new keyless entry keypad. REFER to Keyless Entry Keypad .

  4. O4 CHECK THE KEYLESS ENTRY KEYPAD INPUT CIRCUITS FOR A SHORT TO GROUND

    • Ignition OFF.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C500-1
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 Ground
      C500-3
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 Ground
      C500-6
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  O11.
    No  REPAIR the circuit in question.

  5. O5 CHECK THE BCM KEYPAD CODE

    • Using a diagnostic scan tool, view the factory keyless entry code.
    • Enter the 5-digit factory set entry code on the keyless entry keypad, then press the 3/4 button.
    • Simultaneously press the 7/8 and 9/0 buttons for 3 seconds.

    Do the doors unlock when the factory code is entered and lock when the 7/8 and 9/0 buttons are pressed? 

    Yes  The system is operating as designed. INFORM the customer of the correct system operation.
    No  GO to  O6.

  6. O6 CHECK THE KEYLESS ENTRY KEYPAD PIDs

    • Using a diagnostic scan tool, view the BCM PIDs.
    • Press each keyless entry keypad button while observing the following BCM PIDs :
      • Keypad button 1/2 (KYPD_BTN_1/2)
      • Keypad button 3/4 (KYPD_BTN_3/4)
      • Keypad button 5/6 (KYPD_BTN_5/6)
      • Keypad button 7/8 (KYPD_BTN_7/8)
      • Keypad button 9/0 (KYPD_BTN_9/0)

    Do all of the PIDs indicate the buttons operate correctly? 

    Yes  GO to  O11.
    No  GO to  O7.

  7. O7 CHECK THE KEYLESS ENTRY KEYPAD GROUND CIRCUIT FOR AN OPEN

    • Ignition OFF.
    • Disconnect: Keyless Entry Keypad C500 .
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C500-5
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance less than 3 ohms? 

    Yes  GO to  O8.
    No  REPAIR the circuit.

  8. O8 BYPASS THE KEYLESS ENTRY KEYPAD

    • Ignition ON.
    • Using a diagnostic scan tool, view the BCM PIDs.
    • Using a diagnostic scan tool, monitor the following BCM PIDs :
      • Keypad button 1/2 (KYPD_BTN_1/2)
      • Keypad button 7/8 (KYPD_BTN_7/8)
      • Keypad button 9/0 (KYPD_BTN_9/0)
    • Connect:

      Keypad Button 1/2 

      Lead 1 Measurement / Action Lead 2
      C500-1
      GFD135987Courtesy of FORD MOTOR COMPANY
      		 C500-5
    • Remove the fused jumper wire.
    • Connect:

      Keypad Button 7/8 

      Lead 1 Measurement / Action Lead 2
      C500-3
      GFD135987Courtesy of FORD MOTOR COMPANY
      		 C500-5
    • Remove the fused jumper wire.
    • Connect:

      Keypad Button 9/0 

      Lead 1 Measurement / Action Lead 2
      C500-6
      GFD135987Courtesy of FORD MOTOR COMPANY
      		 C500-5
    • Remove the fused jumper wire.

    Do the PIDs indicate correctly when the jumper wire is connected? 

    Yes  INSTALL a new keyless entry keypad. REFER to Keyless Entry Keypad .
    No  GO to  O9.

  9. O9 CHECK THE KEYLESS ENTRY KEYPAD INPUT CIRCUITS FOR AN OPEN

    • Ignition OFF.

    Are the resistances less than 3 ohms? 

    Yes  GO to  O10.
    No  REPAIR the circuit in question.

  10. O10 CHECK THE KEYLESS ENTRY KEYPAD INPUT CIRCUITS FOR A SHORT TO EACH OTHER

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C500-1
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C500-3
      C500-1
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C500-6
      C500-3
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C500-6

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  O11.
    No  REPAIR the circuits in question.

  11. O11 CHECK FOR CORRECT BCM OPERATION

    • Disconnect and inspect all 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 On-Line Automotive Service Information System(OASIS) for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no 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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