B2155

DTC B2155: Driver's MPCS Unit Lost Communication with MICU (MICU Message)

DTC B2156: Driver's MPCS Unit Lost Communication with MICU (MIRRORSW 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.

Are DTCs B2155 and/or B2156 indicated?

YES - Go to step 5.

NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections between the driver's MPCS unit and the MICU.

5. Check for DTCs with the HDS.

Are DTCs B1055, B1157, B1255, B1605, B1806, B1810, B1855, and/or B2107 also indicated?

YES - Faulty MICU, replace the driver's under-dash fuse/relay box.

NO - Do the driver's MPCS unit input test.