B1065

DTC Troubleshooting: B1065

DTC B1065: Relay Control Module Lost Communication with Driver's MPCS Unit (DRLOCKSW Message)

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 ON (II).

3. Wait for more than 6 seconds.

4. Check for DTCs with the HDS.

Is DTCs B1065 indicated?
YES - Go to step 5.

NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections between the relay control module and the driver's MPCS unit.


5. Check for DTCs with the HDS.

Are DTCs B1013, B1015, B1065, B1182, and B1905 all indicated?
YES - Do the driver's MPCS unit input test. Multiplex Integrated Control System Driver's MPCS Unit Input Test

NO - Do the relay control module input test. Relay Control Module Input Test