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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Handles, Locks, Latches And Entry Systems - With Intelligent Access >> Diagnostic Routine(S) >> Diagnostic Routine F >> Pinpoint Test

Pinpoint Test

  1. CHECK THE KEYLESS ENTRY KEYPAD ILLUMINATION
    1. Touch the keyless entry keypad in several places.

    Do the keypad numbers illuminate? 

    • Yes: GO to  5.
    • No: GO to 2  .
  2. CHECK THE KEYLESS ENTRY KEYPAD INDICATOR
    1. Touch the keyless entry keypad in several places.

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

  3. CHECK FOR VOLTAGE TO THE KEYLESS ENTRY KEYPAD
    1. Ignition OFF.
    2. Disconnect: Keyless Entry Keypad.
    3. Measure:
      Keyless Entry Keypad Ground
      G08040705
      G08040706
      C500 Ground
      Pin Circuit Measurement / Action Pin Circuit
      1 SBP21 (GY/RD)
      G08040707
      		 - Ground

    Is the voltage greater than 11 volts? 

    • Yes: GO to 4  .
    • No: VERIFY the BCM fuse 21 (10A) is OK. If OK, REPAIR the circuit for an open. If not OK, REFER to the appropriate wiring diagrams to identify the possible causes of the circuit short. REFER to OEM FUSE AND RELAY INFORMATION and OEM WIRING DIAGRAMS .
  4. CHECK THE KEYPAD GROUND CIRCUIT FOR AN OPEN
    1. Measure:
      Keyless Entry Keypad Ground
      G08040708
      G08040709
      C500 Ground
      Pin Circuit Measurement / Action Pin Circuit
      6 GD233 (BK)
      G08040710
      		 - Ground

    Is the resistance less than 3 ohms? 

  5. COMPARE THE KEYCODE PID
    NOTE: The permanent keypad code in the scan tool does not display even numbers. If the permanent code has even numbers in it, the scan tool will display an odd number that corresponds with the same button on the keypad. For example, if the keycode contains the number 2, the scan tool will display the number 1 in its place.
    1. Using a scan tool, retreive and record the keyless entry keypad code.
    2. 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? 

  6. CHECK THE KEYCODE
    1. 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 7  .
  7. RETRIEVE THE RFA MODULE DTCs  FROM THE SELF-TEST
    1. Using a scan tool, perform the RFA module self-test.

    Is DTC B121B:11 recorded? 

    • Yes: GO to 8  .
    • No: GO to  10.
  8. REPEAT THE RFA MODULE SELF-TEST
    1. Disconnect: Keyless Entry Keypad.
    2. Using a scan tool, clear the RFA module DTCs  .
    3. Using a scan tool, perform the RFA module self-test.

    Is DTC B121B:11 recorded? 

  9. CHECK THE KEYPAD INPUT CIRCUITS FOR A SHORT TO GROUND
    1. Ignition OFF.
    2. Disconnect: RFA Module C2153B.
    3. Measure:
      Keyless Entry Keypad Ground
      G08040711
      G08040712
      C500 Ground
      Pin Circuit Measurement / Action Pin Circuit
      3 CPK29 (GY/BU)
      G08040713
      		 - Ground
      4 CPK30 (VT/GN)
      G08040714
      		 - Ground
      5 CPK31 (YE/GN)
      G08040715
      		 - Ground

    Are the resistances greater than 10, 000 ohms? 

    • Yes: GO to  14.
    • No: REPAIR the affected circuit.
  10. CHECK THE RFA MODULE KEYPAD PIDs 
    1. Using a scan tool, view the RFA module PIDs  .
    2. 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  14.
    • No: GO to 11  .
  11. CHECK THE KEYLESS ENTRY KEYPAD
    1. Using a scan tool, view the RFA module PIDs  .
    2. Monitor the keyless entry keypad PID Keypd_SW _1_2.
    3. Connect a fused jumper wire:
      Keyless Entry Keypad Keyless Entry Keypad
      G08040716
      G08040717
      C500 C500
      Pin Circuit Measurement / Action Pin Circuit
      3 CPK29 (BY/BU)
      G08040718
      		 6 GD233 (BK)
    4. Monitor the keyless entry keypad PID Keypd_SW _7_8.
    5. Connect a fused jumper wire:
      Keyless Entry Keypad Keyless Entry Keypad
      G08040719
      G08040720
      C500 C500
      Pin Circuit Measurement / Action Pin Circuit
      4 CPK30 (VT/GN)
      G08040721
      		 6 GD233 (BK)
    6. Monitor the keyless entry keypad PID Keypd_SW _9_0.
    7. Connect a fused jumper wire:
      Keyless Entry Keypad Keyless Entry Keypad
      G08040722
      G08040723
      C500 C500
      Pin Circuit Measurement / Action Pin Circuit
      5 CPK31 (YE/GN)
      G08040724
      		 6 GD233 (BK)

    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 12  .
  12. CHECK THE KEYPAD INPUT CIRCUITS FOR AN OPEN
    1. Disconnect: RFA Module C2153B.
    2. Measure:
      RFA Module Keyless Entry Keypad
      G08040725
      G08040726
      C2153B C500
      Pin Circuit Measurement / Action Pin Circuit
      1 CPK29 (GY/BU)
      G08040727
      		 3 CPK29 (GY/BU)
      2 CPK30 (VT/GN)
      G08040728
      		 4 CPK30 (VT/GN)
      3 CPK31 (YE/RD)
      G08040729
      		 5 CPK31 (YE/GN)

    Are the resistances less than 3 ohms? 

    • Yes: GO to 13  .
    • No: REPAIR the affected circuit.
  13. CHECK THE KEYPAD INPUT CIRCUITS FOR A SHORT TO EACH OTHER
    1. Measure:
      Keyless Entry Keypad Keyless Entry Keypad
      G08040730
      G08040731
      C500 C500
      Pin Circuit Measurement / Action Pin Circuit
      3 CPK29 (GY/BU)
      G08040732
      		 4 CPK30 (VT/GN)
      3 CPK29 (GY/BU)
      G08040733
      		 5 CPK31 (YE/GN)
      4 CPK30 (VT/GN)
      G08040734
      		 5 CPK31 (YE/GN)

    Are the resistances greater than 10, 000 ohms? 

    • Yes: GO to 14  .
    • No: REPAIR the affected circuits.
  14. CHECK FOR CORRECT RFA MODULE OPERATION
    1. Ignition OFF.
    2. Disconnect and inspect all RFA module connectors.
    3. 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
    4. Reconnect all RFA module connectors. Make sure they seat and latch correctly.
    5. 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 REMOTE FUNCTION ACTUATOR (RFA) MODULE .
    • 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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