B1185

DTC Troubleshooting: B1185

DTC B1185:

Gauge Control Module Lost Communication With Motor Control Module (BATT Message)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A Troubleshooting - B-CAN System Diagnosis Test Mode A.

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Wait for at least 6 seconds.

4. Check for DTCs with the HDS.

Is DTC B1185 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 IMA system DTCs with the HDS.

Is any DTCs indicated?

YES -

Go to the indicated DTC, then recheck.�

NO -

Go to step 6.

6. Turn the ignition switch to LOCK (0).

7. Disconnect the gauge control module 32P connector.

8. Disconnect motor control module connector A (31P).

9. Check for continuity between gauge control module 32P connector terminals No. 20 and No. 19 and motor control module connector A (31P) terminals No. 31 and No. 30 respectively.





Is there continuity?

YES -

Substitute a known-good motor control module, and recheck. If the indication goes away, replace the original motor control module Service and Repair. If the DTC is still present, replace the gauge control module Service and Repair.�

NO -

Repair an open in the wire.�