DTC B1175

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 .

DTC (Gauge Control Module)

1. Problem verification

   -1. Clear the DTCs with the HDS.

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

   -3. Wait for at least 30 seconds.

   -4. Check for DTCs with the HDS.

   DTC Description	DTC
   B1175 Fuel level sensor (Fuel gauge sending unit) circuit malfunction

   Is DTC B1175 indicated?

   YES 

   Go to step 2.

   NO 

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

2. Open wire check (FUEL_GAUGE+, FUEL_GAUGE- lines)

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

   -2. Disconnect the following connector.

   Gauge control module connector A (32P) Fuel tank unit 4P connector

   -3. Measure the resistance between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode Gauge control module connector A (32P): disconnected Fuel tank unit 4P connector: disconnected
   Test point 1	Gauge control module connector A (32P) No. 22
   Test point 2	Fuel tank unit 4P connector (female terminals) No. 2:

   Test point 1	Gauge control module connector A (32P) No. 21
   Test point 2	Fuel tank unit 4P connector (female terminals) No. 4:

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

   Is there 1.0 Ω or less?

   YES 

   The FUEL_GAUGE+ and FUEL_GAUGE- wires are OK. Go to step 3.

   NO 

   Repair an open or high resistance in the wire(s).

3. Fuel gauge sending unit check

   -1. Do the fuel gauge sending unit test .

   Is the unit OK?

   YES 

   Replace the gauge control module .

   NO 

   Replace the fuel gauge sending unit .