DTC Troubleshooting: B1176

DTC B1176  : Fuel level sensor (Fuel gauge sending unit) circuit short

DTC (Gauge Control Module)

NOTE:  If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .

1. Problem verification

   -1. Clear the DTCs with the HDS.

   -2. Turn the vehicle to the OFF (LOCK) mode.

   -3. Turn the vehicle to the ON mode, and wait more than 30 seconds.

   -4. Check for DTCs with the HDS.

   DTC Description	DTC
   B1176 Fuel level sensor (Fuel gauge sending unit) circuit short

   Is DTC B1176 indicated?

   YES 

   Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Check for loose or poor connections.

2. Shorted wire check (FUEL GAUGE+ line)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Disconnect the following connector.

   Gauge control module 32P connectorFuel tank unit 4P connector

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

   Test condition	Vehicle OFF (LOCK) modeFuel tank unit 4P connector: disconnectedGauge control module 32P connector: disconnected
   Test point 1	Gauge control module 32P connector No. 11
   Test point 2	Body ground

   Is there continuity?

   YES 

   Repair a short to ground in the wire.

   NO: 2WD

   The FUEL GAUGE+ wires is OK. Go to step  4.

   NO: AWD

   The FUEL GAUGE+ wires is OK. Go to step 3.

3. Shorted wire check (FUEL GAUGE1-2 line)

   -1. Disconnect the following connector.

   Secondary fuel gauge sending unit 4P connector

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

   Test condition	Vehicle OFF (LOCK) modeGauge control module 32P connector: disconnectedFuel tank unit 4P connector: disconnectedSecondary fuel gauge sending unit 4P connector: disconnected
   Test point 1	Fuel tank unit 4P connector No. 4
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   Repair a short to ground in the wire.

   NO 

   The FUEL GAUGE1-2 wire is OK. Go to step 4.

4. Fuel gauge sending unit check

   -1. Test the fuel gauge sending unit .

   Is the fuel gauge sending unit OK?

   YES 

   Replace the gauge control module .

   NO 

   Replace the fuel gauge sending unit .