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Home >> Ford >> 2015 >> Explorer Limited, 3.5L Eng VIN 8, AWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Door Handles, Door Locks, Door Latches And Entry Systems - With Intelligent Access (IA) >> Diagnosis And Testing >> Handles, Locks, Latches and Entry Systems >> Pinpoint Tests >> PINPOINT TEST F : The Doors Do Not Lock or Unlock Using The Keyless Entry Keypad >> PINPOINT TEST F : The Doors Do Not Lock or Unlock Using The Keyless Entry Keypad

PINPOINT TEST F : The Doors Do Not Lock or Unlock Using The Keyless Entry Keypad

  1. F1 CHECK THE KEYLESS ENTRY KEYPAD ILLUMINATION

    • Touch the keyless entry keypad in several places.

    Do the keypad numbers illuminate? 

    Yes  GO to  F5.
    No  GO to  F2.

  2. F2 CHECK THE KEYLESS ENTRY KEYPAD INDICATOR

    • Touch the keyless entry keypad in several places.

    Does the round indicator on the top of the keypad light up? 

    Yes  GO to Pinpoint Test G .
    No  GO to  F3.

  3. F3 CHECK FOR VOLTAGE TO THE KEYLESS ENTRY KEYPAD

    • Ignition OFF.
    • Disconnect: Keyless Entry Keypad.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C500-1
      GFD33595Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 11 volts? 

    Yes  GO to  F4.
    No  VERIFY the BCM fuse 21 (10A) is OK. If OK, REPAIR the circuit for an open. If not OK, REFER to the SYSTEM WIRING DIAGRAMS article to identify the possible causes of the circuit short.

  4. F4 CHECK THE KEYPAD GROUND CIRCUIT FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C500-6
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance less than 3 ohms? 

    Yes  INSTALL a new keyless entry keypad. REFER to Keyless Entry Keypad .
    No  REPAIR the circuit.

  5. F5 COMPARE THE KEYCODE PID

    • Using a scan tool, retrieve and record the keyless entry keypad code.
    • Obtain the keyless entry keypad code from the label on the BCM or from the Owner's Literature.

    Does the keycode from the scan tool correspond with the keycode from the BCM label or Owner's Literature? 

    Yes  GO to  F6.
    No  PERFORM the keyless entry keypad code reset. REFER to Remote Function Actuator (RFA) Module Keyless Entry Keypad Code Reset .

  6. F6 CHECK THE KEYCODE

    • Enter the 5-digit permanent entry code on the keyless entry keypad, then touch the 3/4 button.

    Do the doors unlock? 

    Yes  The system is operating as designed. INFORM the customer of the correct system operation.
    No  GO to  F7.

  7. F7 RETRIEVE THE RFA MODULE DTCs FROM THE SELF-TEST

    • Using a scan tool, perform the RFA module self-test.

    Is DTC B121B:11 recorded? 

    Yes  GO to  F8.
    No  GO to  F10.

  8. F8 REPEAT THE RFA MODULE SELF-TEST

    • Disconnect: Keyless Entry Keypad.
    • Using a scan tool, clear the RFA module DTCs.
    • Using a scan tool, perform the RFA module self-test.

    Is DTC B121B:11 recorded? 

    Yes  GO to  F9.
    No  INSTALL a new keyless entry keypad. REFER to Keyless Entry Keypad .

  9. F9 CHECK THE KEYPAD INPUT CIRCUITS FOR A SHORT TO GROUND

    • Ignition OFF.
    • Disconnect: RFA Module C2153B.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C500-3
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground
      C500-4
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground
      C500-5
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  F14.
    No  REPAIR the affected circuit.

  10. F10 CHECK THE RFA MODULE KEYPAD PIDs

    • Using a scan tool, view the RFA module PIDs.
    • Press each keyless entry keypad button while observing the PIDs Keypd_SW_1_2, Keypd_SW_3_4, Keypd_SW_5_6, Keypd_SW_7_8, and Keypd_SW_9_0.

    Do the PIDs display the correct values? 

    Yes  GO to  F14.
    No  GO to  F11.

  11. F11 CHECK THE KEYLESS ENTRY KEYPAD

    • Using a scan tool, view the RFA module PIDs.
    • Monitor the keyless entry keypad PID Keypd_SW _1_2.
    • Connect a fused jumper wire:
      Positive Lead Measurement / Action Negative Lead
      C500-3
      GFD33601Courtesy of FORD MOTOR COMPANY
      		 C500-6
    • Monitor the keyless entry keypad PID Keypd_SW _7_8.
    • Connect a fused jumper wire:
      Positive Lead Measurement / Action Negative Lead
      C500-4
      GFD33601Courtesy of FORD MOTOR COMPANY
      		 C500-6
    • Monitor the keyless entry keypad PID Keypd_SW _9_0.
    • Connect a fused jumper wire:
      Positive Lead Measurement / Action Negative Lead
      C500-5
      GFD33601Courtesy of FORD MOTOR COMPANY
      		 C500-6

    Do the PIDs display active when the jumper wire is connected? 

    Yes  REMOVE the jumper wire. INSTALL a new keyless entry keypad. REFER to Keyless Entry Keypad .
    No  REMOVE the jumper wire. GO to  F12.

  12. F12 CHECK THE KEYPAD INPUT CIRCUITS FOR AN OPEN

    • Disconnect: RFA Module C2153B.

    Are the resistances less than 3 ohms? 

    Yes  GO to  F13.
    No  REPAIR the affected circuit.

  13. F13 CHECK THE KEYPAD INPUT CIRCUITS FOR A SHORT TO EACH OTHER

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C500-3
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C500-4
      C500-3
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C500-5
      C500-4
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C500-5

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  F14.
    No  REPAIR the affected circuits.

  14. F14 CHECK FOR CORRECT RFA MODULE OPERATION

    • Ignition OFF.
    • Disconnect and inspect all RFA module 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 all RFA module 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 TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new RFA module. REFER to Multifunction Electronic Modules .
    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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