DTC B12A1: Power Control Unit Internal (CPU) Error

DTC (Power Control Unit)

NOTE:  If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to: BODY ELECTRICAL TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A - INITIAL COMMUNICATION AND DTC CHECKS .

1. Problem verification

   - 1. Clear the DTCs with the HDS.

   - 2. Turn the vehicle to the ON mode.

   - 3. Check for DTCs with the HDS.

   DTC Description	DTC
   B12A1: Power Control Unit Internal (CPU) Error

   Is DTC B12A1 indicated?

   YES 

   REPLACE THE KEYLESS ACCESS CONTROL UNIT .

   NO 

   Intermittent failure, the system is OK at this time. Check for loose or poor connections.