Power Tailgate Control Unit

DTC Troubleshooting: U0155

DTC U0155:

Lost Communication With Gauge Control Module (VSP/NE, AT Frame)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A Troubleshooting - B-CAN System Diagnosis Test Mode A.

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.

3. Wait for at least 6 seconds.

4. Check for DTCs with the HDS.

Is DTC U0155 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connections.�

5. From the BODY ELECTRICAL SYSTEM SELECT menu, select B-CAN CONTROL UNITS INFORMATION, and then select CHECK CONNECTED CONTROL UNITS.

Is the gauge control module detected?

YES -

Replace the power tailgate control unit Service and Repair.�

NO -

Go to step 6.

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

7. Disconnect power tailgate control unit connector C (14P).

8. Check for continuity between gauge control module connector A (32P) terminals No. 29 and No. 30 and power tailgate control unit connector C (14P) terminals No. 6 and No. 7 respectively.





Is there continuity?

YES -

Go to the gauge control module input test, and do all power and ground input tests Gauge Control Module Input Test. If the tests prove OK, replace the gauge control module Service and Repair.�

NO -

An open or poor connection in the B-CAN wire between the gauge control module and the power tailgate control unit.�