B1176

DTC Troubleshooting: B1176

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

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 30 seconds.

4. Check for DTCs with the HDS.

Is DTC B1176 indicated?
YES - Go to step 5.

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


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

6. Disconnect the fuel tank unit 4P connector.

7. Clear the DTCs with the HDS.

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

9. Wait for at least 30 seconds.

10. Check for DTCs with the HDS.

Is DTC B1176 indicated?
YES - Go to step 11.

NO - Replace the fuel gauge sending unit, R18A1 engine, Fuel Pump/Fuel Gauge Sending Unit Replacement K20Z3 engine. Fuel Pump/Fuel Gauge Sending Unit Replacement


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

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

Is there continuity?
YES - Repair short in the wire between the gauge control module (tach) and the fuel tank unit.

NO - Replace the gauge control module (tach). Gauge Control Module Replacement