FixVault
Home › Acura › 2012 › TL Base › Repair and Diagnosis › Body & Frame › Door Locks › Keyless/Power Door Locks/Security System › Symptom Troubleshooting › Trunk lid latch switch circuit troubleshooting

Trunk lid latch switch circuit troubleshooting

  1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
  2. With the trunk lid closed, select SECURITY with the HDS, and enter the DATA LIST.
  3. Check the ON/OFF information of the TRUNK LID/TAILGATE SWITCH in the DATA LIST.

    Is information indicator ON? 

    YES  - Go to step 4.

    NO  - Go to step  8.

  4. Disconnect the trunk lid latch 3P connector.
  5. Check the ON/OFF information of the TRUNK LID/TAILGATE SWITCH in the DATA LIST.

    Is information indicator OFF? 

    YES  - Faulty trunk lid latch switch; replace the trunk lid latch (see TRUNK LID LATCH REPLACEMENT ).

    NO  - Go to step 6.

  6. Disconnect driver's under-dash fuse/relay box connector D(16P).
  7. Check for continuity between driver's under-dash fuse/relay box connector D (16P) terminal No. 5 and body ground.
    Fig 1: Checking Continuity Between Driver's Under-Dash Fuse/Relay Box Connector D (16P) Terminal No. 5 And Body Ground With Connector End View
    G08071285Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Repair a short to ground in the wire.

    NO  - Faulty driver's MICU; replace the driver's under-dash fuse/relay box (see DRIVER'S UNDER-DASH FUSE/RELAY BOX (MICU) REMOVAL AND INSTALLATION ).

  8. Disconnect the trunk lid latch 3P connector.
  9. Connect trunk lid latch 3P connector terminal No. 1 and body ground with a jumper wire.
    Fig 2: Connecting Trunk Lid Latch 3P Connector Terminal No. 1 And Body Ground With Jumper Wire With Connector End View
    G08071286Courtesy of AMERICAN HONDA MOTOR CO., INC.
  10. Check the ON/OFF information of the TRUNK LID/TAILGATE SWITCH in the DATA LIST.

    Is information indicator ON? 

    YES  - Go to step 11.

    NO  - Go to step  12.

  11. Check for continuity between trunk lid latch 3P connector terminal No. 2 and body ground.
    Fig 3: Checking Continuity Between Trunk Lid Latch 3P Connector Terminal No. 2 And Body Ground
    G08071287Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Faulty trunk lid latch switch; replace the trunk lid latch (see TRUNK LID LATCH REPLACEMENT ).

    NO  - Repair an open or high resistance in the ground wire or poor ground (G603).

  12. Connect driver's under-dash fuse/relay box connector D (16P) terminal No. 5 and body ground with a jumper
    Fig 4: Connecting Driver's Under-Dash Fuse/Relay Box Connector D (16P) Terminal No. 5 And Body Ground With Jumper
    G08071288Courtesy of AMERICAN HONDA MOTOR CO., INC.
  13. Check the ON/OFF information of the TRUNK LID/TAILGATE SWITCH in the DATA LIST.

    Is information indicator ON? 

    YES  - Repair an open or high resistance in the wire.

    NO  - Faulty driver's MICU; replace the driver's under-dash fuse/relay box (see DRIVER'S UNDER-DASH FUSE/RELAY BOX (MICU) REMOVAL AND INSTALLATION ).

About FixVault