DTC B1055: Relay Control Module Lost Communication with MICU
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
).
- Clear the DTCs with the HDS.
- Turn the ignition switch to LOCK (0), and then back to ON (II).
- Wait for 6 seconds or more.
- Check for DTCs with the HDS.
Is DTC B1055 indicated?
YES - Go to step 5.
NO - Intermittent failure, the communication line is OK at this time.
- Check for DTCs with the HDS.
Are DTCs B1106, B1157, B1255, B1355, B1556, B1806, B1955, B2005, and B2055 also indicated?
YES - Go to MICU input test (see MICU INPUT TEST ).
NO - Go to relay control module input test (see RELAY CONTROL MODULE INPUT TEST ).