B12A1

DTC Troubleshooting: B12A1

DTC B12A1:

Power Control Unit Internal (CPU) Error

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. Do the battery terminal disconnect procedure.

2. Wait for at least 10 seconds to clear the DTCs.

3. Do the battery terminal reconnection procedure.

4. Press and hold the engine start/stop button.

5. Wait for at least 10 seconds.

6. Check for DTCs with the HDS.

Is DTC B12A1 indicated?

YES -

Replace the power control unit.

NO -

Intermittent failure, the system is OK at this time.