Tailgate Full Latch Switch Circuit Troubleshooting

Keyless/Power Door Locks/Security System Symptom Troubleshooting - Tailgate full latch switch circuit troubleshooting

Tailgate full latch switch circuit troubleshooting

NOTE:

- Before troubleshooting, check the B-CAN DTCs.If any DTC is indicated, refer to B-CAN System Diagnosis Test Mode A Troubleshooting - B-CAN System Diagnosis Test Mode A, and troubleshoot the indicated DTCs first.
- Before troubleshooting, check for DTC B1382 B1382. If indicated, troubleshoot the DTC first.

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

2. With the tailgate full 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 6.

4. Disconnect the power tailgate closer unit connector B (6P).

5. Check the ON/OFF information of the TRUNK LID/TAILGATE SWITCH in the DATA LIST.

Is information indicator OFF?

YES -

Faulty tailgate full latch switch; replace the tailgate latch Service and Repair.

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.

6. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

7. Disconnect driver's under-dash fuse/relay box connector D (16P).

8. Disconnect the power tailgate closer unit connector B (6P).

9. Check for continuity between power tailgate closer unit connector B (6P) terminal No. 2 and driver's under-dash fuse/relay box connector D (16P) terminal No. 5.





Is there continuity?

YES -

Faulty driver's MICU; replace the driver's under-dash fuse/relay box Drivers Under-Dash Fuse/Relay Box (Drivers MICU) Removal and Installation.

NO -

Repair an open or high resistance in the wire.