B1175

Control System DTCs

DTC Troubleshooting: B1175

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


1. Problem verification:

-1. Check the fuel gauge.

Does the gauge move to the empty position and the low fuel indicator blink?
-YES- Go to step 2.
-NO- Intermittent failure, the system is OK at this time. Check for loose or poor connections.

2. Fuel gauge operation check:

-1. Turn the ignition switch to LOCK (0).

-2. Disconnect the following connector.





-3. Connect terminals A and B with a 2 Ohms resistor and a jumper wire.









-4. Remove the No. A29 (10 A) fuse from the under-hood fuse/relay box for at least 10 seconds, then reinstall it.

-5. Turn the ignition switch to ON (II).

-6. Check the fuel gauge.

Does the gauge move to the full position?
-YES- Go to step 4.
-NO- Go to step 3.

3. Open wire check (FUEL GAGE+ line):

-1. Measure the voltage between test points 1 and 2.









Is there battery voltage?
-YES- Repair an open or high resistance in the wire.
-NO- The FUEL GAGE+ wire is OK. Replace the gauge control module Service and Repair.

4. Open wire check (FUEL GAGE- line):

-1. Turn the ignition switch to LOCK (0).

-2. Disconnect the following connector.





-3. Check for continuity between test points 1 and 2.









Is there continuity?
-YES- The FUEL GAGE- wire is OK. Replace the fuel gauge sending unit Fuel Tank Unit Removal/Installation.
-NO- Repair an open or high resistance in the wire.