B1175
DTC B1175: Fuel Level Sensor (Fuel Gauge Sending Unit) Signals Input Error1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Check for DTCs with the HDS
Is DTC B1175 indicated?
YES - Go to step 4.
NO - Intermittent failure, the fuel level sensor circuit is OK at this time. Check for loose or poor connections.
4. Disconnect the fuel pump 5P connector and gauge control module connector B (14P) and check for loose or damaged terminals.
5. Turn the ignition switch ON (II).
6. Reconnect the connectors that were disconnected, measure the voltage between the No. 7 and No. 8 terminals of gauge control module connector B (36P) and No. 1 and No. 2 terminals of the fuel tank unit 5P connector.
Is there less than 1 V?
YES - Go to step 7.
NO - Repair the loose connection or open in the ORN/WHT or BLK/YEL wire between the gauge control module and fuel tank unit.
7. Turn the ignition switch OFF.
8. Disconnected the gauge control module connector B (36P).
9. Check for continuity between gauge control module connector B (36P) No. 7 and No. 8 terminals and body ground.
Is there continuity?
YES - Go to step 10.
NO - Repair the short to ground in the wire between the gauge control module and the fuel gauge sending unit.
10. Do the fuel gauge sending unit test.
Is the fuel gauge sending unit OK?
YES - Replace the gauge control module.
NO - Replace the fuel tank unit.