B1064

DTC B1014: MICU Lost Communication with Driver's MPCS Unit (DOORSW Message)

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF and then back ON (II).
3. Wait for 6 seconds.
4. Check for DTCs with the HDS.

Is DTC B1014 indicated?

YES - Go to step 5.

NO - Intermittent failure. The system is OK at this time. Check for loose or poor connections.

5. Check for DTCs with the HDS.

Are DTCs B1064, B1181, B1405, B1613, and B1811 also indicated?

YES - Go to Driver's MPCS Input Test. Driver's MPCS Unit Input Test

NO - Check for an open in the communication circuit between the MICU and the gauge control module. If the circuit is OK, replace the MICU. If the circuit is bad, repair the open.

DTC B1064: Relay Control Module Lost Communication with Driver's MPCS Unit (DOORSW 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.
4. Check for DTCs with the HDS.

Is DTC B1064 indicated?

YES - Go to step 5.

NO - Intermittent failure, the communication line is OK at this time.

5. Check for DTCs with the HDS.

Are DTCs B1014, B1181, B1405, B1613, and B-1811 also indicated?

YES - Go to the driver's MPCS unit input test. Driver's MPCS Unit Input Test

NO - Go to the relay control module input test. Relay Control Module Input Test