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 (see
TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
).
- Clear the DTCs with the HDS.
- Turn the ignition switch to LOCK (0) and then back to ON (II).
- Wait for at least 30 seconds.
- 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.
- Turn the ignition switch to LOCK (0).
- Disconnect the fuel tank unit 5P connector.
- Turn the ignition switch to ON (II).
- Measure the voltage between body ground and fuel tank unit 5P connector terminal No. 3.
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Is there about 5 V?
YES -Go to step 9.
NO -Go to step 12.
- Turn the ignition switch to LOCK (0).
- Disconnect the gauge control module 32P connector.
- Check for continuity fuel tank unit 5P connector terminal No. 1 and body ground.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Repair a short to ground in the wire.
NO -Repair an open or high resistance in the wire.
- Turn the ignition switch to LOCK (0).
- Disconnect the gauge control module 32P connector.
- Check for continuity between gauge control module 32P connector terminal No. 31 and fuel tank unit 5P connector terminal No. 3.Fig 3: Checking Continuity Between Gauge Control Module 32P Connector Terminal No. 31 And Fuel Tank Unit 5P Connector Terminal No. 3
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Replace the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).
NO -Repair an open or high resistance in the wire.