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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 (see 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 B1066 indicated? 

    YES  - Go to step  5.

    NO  - Intermittent failure, the system 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 (see CONTROL UNIT INPUT TEST ).

    NO  - Do RELAY CONTROL MODULE INPUT TEST .