DTC B1055: Relay Control Module Lost Communication With MICU; DTC B1057: Relay Control Module Lost Communication With MICU (Door Switch Message)
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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 at least 6 seconds.
- Check for DTCs with the HDS.
Are DTCs B1055 and/or B1057 indicated?
YES -Go to step 5.
NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections. ■
- Check for DTCs with the HDS.
B1055: Are DTCs B1106, B1157, and B1255 also indicated? B1057: Are DTCs B1105 and B1159 also indicated?
YES -Do the MICU input test (see MICU INPUT TEST ). ■
NO -Do the relay control module input test (see RELAY CONTROL MODULE INPUT TEST ). ■