Honda HR-V Owners & Service Manuals

Honda HR-V: DTC B1175 (2WD) Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Malfunction

Honda HR-V (2015-2021) Service Manual / Accessories & Equipment / Gauge Control System - Diagnostics / DTC B1175 (2WD) Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Malfunction

Gauge Control System - Diagnostics

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 - Refer to: Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks.

1. Problem verification.

  1. Check the fuel gauge.

Does the gauge move to the empty position and the low fuel indicator blink?

YES

Go to step 2.

NO

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

2. Fuel gauge operation check.

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Disconnect the following connector.

Fuel tank unit 4P connector

3. Connect terminals A and B with a 2 Ω resistor and a jumper wire.

Gauge Control System - Diagnostics

Gauge Control System - Diagnostics

  1. Remove the No. B21 (10 A) fuse from the under-hood fuse/relay box for at least 10 seconds, then reinstall it.
  2. Turn the vehicle to the ON mode.
  3. Check the fuel gauge.

Does the gauge move to the full position?

YES

Go to step 4.

NO

Go to step 3.

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

Measure the voltage between test points 1 and 2.

Gauge Control System - Diagnostics

Is there battery voltage?

YES

Repair an open or high resistance in the wire.

NO

The FUEL GAUGE+ wire is OK. Replace the gauge control module.

4. Open wire check (FUEL GAUGE- line).

  1.  Turn the vehicle to the OFF (LOCK) mode.
  2.  Disconnect the following connector.

Gauge control module connector A (32P)

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

Gauge Control System - Diagnostics

Gauge Control System - Diagnostics

Is there continuity?

YES

The FUEL GAUGE- wire is OK. Replace the fuel tank unit - Refer to: Fuel Tank Unit Removal and Installation (2WD), or Fuel Tank Unit Removal and Installation (AWD).

NO

Repair an open or high resistance in the wire.

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