B1158

DTC Troubleshooting: B1158

DTC B1158:

Gauge Control Module Lost Communication With Relay Control Module

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).

3. Wait for at least 6 seconds.

4. Check for DTCs with the HDS.

Is DTC B1158 indicated?

YES -

Go to step 5.

NO -

Intermittent failure. The gauge control system is OK at this time. Check for loose or poor and connections.�

5. Check for DTCs with the HDS.

Are DTCs B1005 and B1959 also indicated?

YES -

Go to relay control module input test Relay Control Module Input Test.�

NO -

Go to gauge control module input test Gauge Control Module Input Test.�