DTC : B1175 (2019 2020 2021)

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 - Initial Communication and DTC Checks .

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

DTC (Gauge Control Module)

Problem verification

- 1. Clear the DTCs with the HDS.

Clear DTCs

- 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.

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

Open wire check (FUEL 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. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode Fuel tank unit 4P connector: disconnected Gauge control module connector A (32P): disconnected
Test point 1	Gauge control module connector A (32P) No. 22 - Refer to: Gauge Control Module Connector for Inputs and Outputs (2019) or Gauge Control Module Connector for Inputs and Outputs (2020 2021) .
Test point 2	Fuel tank unit 4P connector (female terminals) No. 2: (1)
Test point 1	Gauge control module connector A (32P) No. 21 - Refer to: Gauge Control Module Connector for Inputs and Outputs (2019) or Gauge Control Module Connector for Inputs and Outputs (2020 2021) .
Test point 2	Fuel tank unit 4P connector (female terminals) No. 4: (1)

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

Is there continuity?

YES

The FUEL+ and/or FUEL- wire(s) is OK. Go to step 3.

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