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Home >> Acura >> 2007 >> RL >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless Access System >> Keyless Access Indicator Circuit Troubleshooting

Keyless Access Indicator Circuit Troubleshooting

Normal operation: The keyless access indicator comes on for 2 seconds when the ignition switch is turned ON (II), then turned OFF.

NOTE: If the keyless access control unit is new and not registered, the keyless access indicator comes on and stays on until the immobilizer code is registered. If a new keyless access control unit is used without registration, the keyless access indicator comes on.
  1. Turn the ignition switch OFF, and then back ON (II).
  2. Check the keyless access indicator.

    Does the keyless access indicator come on for 2 seconds, then go off? 

    YES  - The system is OK at this time.

    NO  - If the indicator does not come on, go to step 3. If the indicator stays on, go to step  15.

  3. Turn the ignition switch OFF.
  4. Connect the HDS to the data link connector (DLC).
  5. Select the FUNCTION TEST MENU, then enter the KEYLESS ACCESS INDICATOR DRIVING.
  6. Check the keyless access indicator operation.

    Does the keyless access indicator come on? 

    YES  - Replace the keyless access control unit.

    NO  - Go to step 7.

  7. Check the other indicators in the gauge control module.

    Do the other indicators come on? 

    YES  - Go to step 8.

    NO  - Do to the gauge control module input test (see GAUGE CONTROL MODULE INPUT TEST ). If the input test is OK, replace the gauge control module.

  8. Turn the ignition switch OFF.
  9. Disconnect keyless access control unit connector A (31P) and gauge control module connector B (28P).
  10. Check for continuity between keyless access control unit connector A (31P) terminal No. 31 and gauge control module connector B (28P) terminal No. 10.
    Fig 1: Checking Continuity Between Terminal No. 31 And Gauge Control Module Connector B (28P) Terminal No. 10
    G05497414Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Go to step 11.

    NO  - Repair an open in the wire.

  11. Reconnect keyless access control unit connector A (31P).
  12. Connect an ohmmeter between gauge control module connector B (28P) terminal No. 10 and body ground.
    Fig 2: Checking Continuity Between Gauge Control Module Connector B (28P) Terminal No. 10 And Body Ground
    G05497415Courtesy of AMERICAN HONDA MOTOR CO., INC.
  13. Turn the ignition switch ON (II).
  14. Select the FUNCTION TEST MENU, then enter the KEYLESS ACCESS INDICATOR DRIVING.

    Is there continuity while the FUNCTION TEST is on? 

    YES  - Replace the gauge control module.

    NO  - Replace the keyless access control unit.

  15. Check for DTCs with the HDS.

    Are there any DTCs? 

    YES  - Go to the indicated DTC troubleshooting.

    NO  - Go to step 16.

  16. Turn the ignition switch OFF.
  17. Disconnect keyless access control unit connector A (31P).
  18. Turn the ignition switch ON (II).
  19. Check the keyless access indicator operation.

    Does the keyless access indicator turn off? 

    YES  - Replace the keyless access control unit.

    NO  - Go to step 20.

  20. Turn the ignition switch OFF.
  21. Disconnect gauge control module connector B (28P).
  22. Check for continuity between the keyless access control unit connector A (31P) terminal No. 31 and body ground.
    Fig 3: Checking Continuity Between Keyless Access Control Unit Connector A (31P) Terminal No. 31 And Body Ground
    G05497416Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Repair a short to ground in the wire.

    NO  - Replace the gauge control module.

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