Trunk / Liftgate: Testing and Inspection

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 Service and Repair.

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.





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 Drivers Under-Dash Fuse/Relay Box (Drivers 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.





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.





Is there continuity?

YES -

Faulty trunk lid latch switch; replace the trunk lid latch Service and Repair.

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 wire.





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 Drivers Under-Dash Fuse/Relay Box (Drivers MICU) Removal and Installation.