B1066

DTC B1066: Relay Control Module Lost Communication with Keyless Access 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 DTCs with the HDS.

Is DTC B1066 indicated?

YES - Go to step 5.

NO - Intermittent failure, the communication line is OK at this time.

5. Check for DTCs with the HDS.

Is DTC B1016 also indicated?

YES - Do the keyless access control unit input test.

NO - Do the relay control module input test.