FFV Models

DTC Troubleshooting: B1175

DTC B1175:

Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Malfunction

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 DTCs B1175 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 5P connector.

7. Turn the ignition switch to ON (II).

8. Measure the voltage between body ground and fuel tank unit 5P connector terminal No. 3.





Is there about 5 V?

YES -

Go to step 9.

NO -

Go to step 12.

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

10. Disconnect the gauge control module 32P connector.

11. Check for continuity fuel tank unit 5P connector terminal No. 1 and body ground.





Is there continuity?

YES -

Repair a short to ground in the wire.

NO -

Repair an open or high resistance in the wire.

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

13. Disconnect the gauge control module 32P connector.

14. Check for continuity between gauge control module 32P connector terminal No. 31 and fuel tank unit 5P connector terminal No. 3.





Is there continuity?

YES -

Replace the gauge control module Service and Repair.

NO -

Repair an open or high resistance in the wire.