B1059

DTC Troubleshooting: B1058, B1059

DTC B1058: Relay Control Module Lost Communication with Door Multiplex Control Unit (DRLOCKSW message)

DTC B1059: Relay Control Module Lost Communication with Door Multiplex Control Unit (PANIC 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 to ON (II).

3. Wait for 6 seconds or more.

4. Check for DTCs with the HDS.

Are DTCs B1058 and/or B1059 indicated?
YES - Go to step 5.

NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections.


5. Check for DTCs with the HDS.

B1058: Are DTCs B1006 and B1160 also indicated? B1059: Is DTC B1010 also indicated?
YES - Do the door multiplex control unit input test. Door Multiplex Control Unit Input Test

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