LEMON Manuals: Even more car manuals for everyone
Home >> Acura >> 2012 >> RL >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Gauges >> DTC Troubleshooting >> DTC B1176: Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Short

DTC B1176: Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Short

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 .
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0) and then back to ON (II).
  3. Wait for at least 30 seconds.
  4. Check for DTCs with the HDS.

    Is DTC B1176 indicated? 

    YES  -Go to step 5.

    NO  - Intermittent failure, the system is OK at this time. Check for worn/missing insulation or an internal short in the wire.

  5. Turn ignition switch to LOCK position (0).
  6. Disconnect the fuel tank unit 5P connector.
  7. Clear any DTCs with the HDS.
  8. Turn the ignition switch to LOCK (0) and then back to ON (II).
  9. Wait for at least 30 seconds.
  10. Check for DTCs with the HDS.

    Is DTC B1176 indicated? 

    YES  -Go to step 11.

    NO  - Replace the fuel gauge sending unit. See FUEL PUMP/FUEL GAUGE SENDING UNIT REPLACEMENT .

  11. Turn the ignition switch to LOCK (0).
  12. Disconnect gauge control module connector A (20P).
  13. Check for continuity between gauge control module connector A (20P) terminal No. 19 and body ground.
    NOTE: Test on wire side of terminals.
    Fig 1: Checking Continuity Between Gauge Control Module Connector (20P) Terminal No. 19 And Body Ground
    G07355116Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is There continuity? 

    YES  - Repair a short to ground in the wire between the gauge control module and the fuel tank unit

    NO  - Go to step 14.

  14. Disconnect the secondary fuel gauge sending unit 5P connector.
  15. Check for continuity between fuel tank unit 5P connector terminals No. 1 and No. 2.
    Fig 2: Checking Continuity Between fuel tank unit 5P connector terminals No. 1 and No. 2
    G00522296Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is There continuity? 

    YES  - Repair a short to ground in the wires.

    NO  - Go to step 16.

  16. Reconnect gauge control module connector A (20P).
  17. Reconnect the fuel tank unit 5P connector.
  18. Clear the DTCs with the HDS.
  19. Turn the ignition switch to LOCK (0) and then back to ON (II).
  20. Wait for at least 30 seconds.
  21. Check for DTCs with the HDS.

    Is DTC B1176 indicated? 

    YES  -Go to step 22.

    NO  - Replace the FUEL GAUGE SENDING UNIT TEST .

  23. Disconnect the fuel tank unit 5P connector.
  24. Check for continuity between fuel tank unit 5P connector terminal No. 1 and body ground. Test on wire side of female terminal.

    Is There continuity? 

    YES  - Repair a short to ground in the wire between the fuel tank unit and the secondary fuel gauge sending unit.

    NO  - Go to step 26.

  25. Disconnect the gauge control modle 20P connector.
    Fig 3: Checking Continuity Between fuel tank unit 5P connector terminals No. 1 and Body Ground
    G00522304Courtesy of AMERICAN HONDA MOTOR CO., INC.
  26. Check for continuity between secondary fuel tank unit 5P connector terminal No. 1 and No. 2.
    Fig 4: Checking Continuity Between fuel tank unit 5P connector terminals No. 1 and No. 2
    G00522300Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  - Repair a short in the wire.

    NO  - Replace the gauge control module.. See GAUGE CONTROL MODULE REPLACEMENT .

  27. Test the fuel gauge sending unit. See FUEL GAUGE SENDING UNIT TEST .

    Is the fuel gauge sending unit OK? 

    YES  -Go to step 6.

    NO  -Replace the fuel gauge sending unit. See FUEL PUMP/FUEL GAUGE SENDING UNIT REPLACEMENT .

  28. Turn the ignition switch to LOCK (0).
  29. Disconnect the fuel tank unit 5P connector. See step 4 FUEL TANK UNIT REMOVAL AND INSTALLATION .
  30. Disconnect gauge control module connector A (20P).
  31. Check for continuity between fuel tank unit 5P connector terminal No. 2 and body ground.
    Fig 5: Checking Continuity Between Fuel Tank Unit 5P Connector Terminal No. 2 And Body Ground
    G07355120Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Repair a short to ground in the wire.

    NO  -Go to step 10.

  32. Disconnect the secondary fuel gauge sending unit 5P connector. See step 4 FUEL TANK UNIT REMOVAL AND INSTALLATION .
  33. Check for continuity between secondary fuel gauge sending unit 5P connector terminal No. 1 and body ground.
    Fig 6: Checking Continuity Between Secondary Fuel Gauge Sending Unit 5P Connector Terminal No. 1 And Body Ground
    G07355121Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Repair a short to ground in the wire.

    NO  -Go to step 12.

  34. Check for continuity between fuel tank unit 5P connector terminal No. 1 and body ground.
Fig 7: Checking Continuity Between Fuel Tank Unit 5P Connector Terminal No. 1 And Body Ground
G07355122Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity? 

YES  -Repair a short to ground in the wire.

NO  -Replace the gauge control module. See GAUGE CONTROL MODULE REPLACEMENT .

scientia non olet · About LEMON Manuals