B1058

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.

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Wait for 6 seconds or more.
4. Check for the DTCs with the HDS.

Are DTCs B1058 and/or B1059 indicated?

YES - Go to step 5.

NO - Intermittent failure, the relay control module 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 - Go to door multiplex control unit input test. Component Tests and General Diagnostics

NO - Go to relay control module input test. Relay Control Module Input Test