B1175

DTC Troubleshooting: B1175

DTC B1175: Fuel Gauge Unit Circuit Open

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

2. Clear the DTC with the HDS.

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

4. Wait more than 30 seconds.

5. Check for DTCs with the HDS.

Is DTC B1175 indicated?
YES - Go to step 6.

NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the gauge assembly and the fuel gauge sending unit.


6. Without disconnecting the gauge assembly or the fuel gauge sending unit connectors, measure the voltage between gauge assembly connector B (30P) terminal No. 10 and fuel gauge sending unit 5P connector terminal No. 2, and between gauge assembly connector B (30P) terminal No. 2 and fuel gauge sending unit 5P connector terminal No. 1.

Is there less than 0.1 V?
YES - Go to step 7.

NO - Repair an open in the wire between the gauge assembly and the fuel gauge sending unit.






7. Test the fuel gauge sending unit. Testing and Inspection

Is the fuel gauge sending unit normal?
YES - Replace the gauge assembly. Service and Repair

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