B1955

DTC B1955: MICU-Rear Junction Box Lost Communication with MICU (MICU 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 B1955 indicated?

YES - Go to step 5.

NO - Intermittent failure, the communication line is OK at this time. Check for loose or poor connections.

5. Check for DTCs with the HDS.

Are DTCs B1055, B1106, B1157, B1255, B1355, B1556, B1806, B2005, and B2055 also indicated?

YES - Go to the MICU input test. MICU Input Test

NO - Go to the MICU-rear junction box input test. MICU-Rear Junction Box Input Test