DTC Troubleshooting: B1176

DTC B1176:  Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Short

1.Clear the DTCs with the HDS.

2.Turn the ignition switch OFF, and then back ON (II).

3.Wait for 30 seconds.

4.Check for DTCs with the HDS.

Is DTC B1176 indicated?


YES - Go to 5.


NO - Intermittent failure, the fuel level sensor circuit is OK at this time. Check for loose or poor connections.n


5.Turn the ignition switch OFF.

6.Disconnect the fuel tank unit 4P connector.

7.Clear the DTCs with the HDS.

8.Turn the ignition switch OFF, and then back ON (II).

9.Wait for 30 seconds.

10.Check for DTCs with the HDS.

Is DTC B1176 indicated?


YES - Go to 11.


NO - Replace the fuel gauge sending unit.n

11.Disconnect the gauge control module (tach) 36P connector.

12.Check for continuity between the gauge control module (tach) 36P connector No. 32 terminal and body ground.

 

Are there continuity?


YES - Repair a short in the wire between the gauge control module (tach) and the fuel tank unit.n


NO - Replace the gauge control module (tach).n