B1192

DTC Troubleshooting: B1192

DTC B1192:

Gauge Control Module Lost Communication With the Battery Sensor (UART Line)

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. Wait for at least 15 seconds.

3. Check for DTCs with the HDS.

Is DTC B1192 indicated?

YES -

Go to step 4.

NO -

Intermittent failure, the battery sensor is OK at this time.

4. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

5. Check the No. 11 (7.5 A) fuse in the auxiliary under-hood fuse/relay box.

Is the fuse OK?

YES -

Go to step 6.

NO -

Replace the fuse. If the fuse blows again, repair a short to ground on the No. 11 (7.5 A) fuse circuit.

6. Disconnect the battery sensor 2P connector.

7. Measure the voltage between battery sensor 2P connector terminal No. 2 and body ground.





Is there battery voltage?

YES -

Go to step 8.

NO -

Repair an open or high resistance in the wire between the auxiliary under-hood fuse/relay box and the battery sensor.

8. Disconnect gauge control module connector A (32P).

9. Measure the voltage between battery sensor 2P connector terminal No. 1 and body ground.





Is there voltage?

YES -

Repair a short to power in the wire between the gauge control module and battery sensor.

NO -

Go to step 10.

10. Check for continuity between battery sensor 2P connector terminal No. 1 and body ground.





Is there continuity?

YES -

Repair a short to ground in the wire between the battery sensor and the gauge control module.

NO -

Go to step 11.

11. Check for continuity between battery sensor 2P connector terminal No. 1 and gauge control module connector A (32P) terminal No. 12.





Is there continuity?

YES -

Replace the gauge control module Service and Repair.

NO -

Repair an open in the UART wire between the battery sensor and the gauge control module.