DTC: B1175 (2016 2017 2018 2019 2020 2021 2022)

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.

   -3. Turn the vehicle to the ON mode, and wait more than 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:'16-19

   Go to step 2.

   YES:'20-21

   Go to step 3.

   NO 

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

2. Open wire check (FUEL GAUGE+, FUEL GAUGE- line)

   -1. Press the engine start/stop button to select the OFF mode.

   -2. Disconnect the following connectors.

   Gauge control module 32P connectorFuel gauge sending unit 4P connector

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

   Without color multi-information display (MID) 

   Test condition	OFF modeFuel gauge sending unit 4P connector: disconnectedGauge control module 32P connector: disconnected
   Test circuit	FUEL GAUGE+
   Test point 1	Gauge control module 32P connector No. 21 (PUR)
   Test point 2	Fuel gauge sending unit 4P connector No. 2 (PUR)

   Test circuit	FUEL GAUGE-
   Test point 1	Gauge control module 32P connector No. 30 (TAN)
   Test point 2	Fuel gauge sending unit 4P connector No. 4 (TAN)

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

   With color multi-information display (MID) 

   Test condition	OFF modeFuel gauge sending unit 4P connector: disconnectedGauge control module 32P connector: disconnected
   Test circuit	FUEL GAUGE+
   Test point 1	Gauge control module 32P connector No. 6 (PUR)
   Test point 2	Fuel gauge sending unit 4P connector No. 2 (PUR)

   Test circuit	FUEL GAUGE-
   Test point 1	Gauge control module 32P connector No. 31 (TAN)
   Test point 2	Fuel gauge sending unit 4P connector No. 4 (TAN)

   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 4.

   NO 

   Repair an open or high resistance in the wire.

3. Open wire check (FUEL GAUGE+, FUEL GAUGE- line)

   -1. Press the engine start/stop button to select the OFF mode.

   -2. Disconnect the following connectors.

   Gauge control module 32P connectorFuel gauge sending unit 4P connector

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

   USA and Canada models 

   Test condition	OFF modeFuel gauge sending unit 4P connector: disconnectedGauge control module 32P connector: disconnected
   Test circuit	FUEL GAUGE+
   Test point 1	Gauge control module 32P connector No. 6 (PUR)
   Test point 2	Fuel gauge sending unit 4P connector No. 2 (RED)

   Test circuit	FUEL GAUGE-
   Test point 1	Gauge control module 32P connector No. 31 (TAN)
   Test point 2	Fuel gauge sending unit 4P connector No. 4 (YEL)

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

   Mexico models 

   Test condition	OFF modeFuel gauge sending unit 4P connector: disconnectedGauge control module 32P connector: disconnected
   Test circuit	FUEL GAUGE+
   Test point 1	Gauge control module 32P connector No. 6 (PUR)
   Test point 2	Fuel gauge sending unit 4P connector No. 2 (PUR)

   Test circuit	FUEL GAUGE-
   Test point 1	Gauge control module 32P connector No. 31 (TAN)
   Test point 2	Fuel gauge sending unit 4P connector No. 4 (TAN)

   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 4.

   NO 

   Repair an open or high resistance in the wire.

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 .