B1175

DTC B1175: Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Open

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

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 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 OFF.
6. Disconnect the fuel gauge sending unit 4P connector and the secondary fuel gauge sending unit 4P connector.




7. Check for continuity between fuel gauge sending unit 4P connector terminal No. 3 and secondary fuel gauge sending unit 4P connector terminal No. 1.

Is there continuity?

YES - Go to step 8.

NO - Repair an open in the BLU wire.

8. Disconnect the gauge control module 36P connector.




9. Check for continuity between gauge control module 36P connector terminal No. 27 and fuel gauge sending unit 4P connector terminal No. 1.

Is there continuity?

YES - Go to step 10.

NO - Repair an open in the GRN wire.




10. Check for continuity between gauge control module 36P connector terminal No. 20 and secondary fuel gauge sending unit 4P connector terminal No. 3.

Is there continuity?

YES - Go to step 11.

NO - Repair an open in the PUR wire.

11. Do the fuel gauge sending unit test.

Is the fuel gauge sending unit OK?

YES - Go to step 12.

NO - Replace the fuel gauge sending unit.

12. Do the secondary fuel gauge sending unit test.

Is the secondary fuel gauge sending unit OK?

YES - Replace the gauge control module.

NO - Replace the secondary fuel gauge sending unit.