DTC B1064, B1065: Relay Control Module Lost Communication with Driver's MPCS Unit (DOORSW Message); Relay Control Module Lost Communication with Driver's MPCS Unit (DRLOCKSW Message)
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.
Is DTCs B1064 and/or B1065 indicated?
YES - Go to step 5.
NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections between the relay control module and the driver's MPCS unit.
- Check for DTCs with the HDS.
Are DTCs B1014, B1015, B1181, B1182, B1613, B1614 and B1811 all indicated?
YES - Do DRIVER'S MPCS UNIT INPUT TEST .
NO - Do RELAY CONTROL MODULE INPUT TEST .