Honda HR-V Owners & Service Manuals

Honda HR-V: DTC C1841-11 (42-02): Differential Fluid Temperature Sensor Circuit Low Voltage (AWD)

Honda HR-V (2015-2021) Service Manual / Driveline & Axles / AWD System - Diagnostics / DTC C1841-11 (42-02): Differential Fluid Temperature Sensor Circuit Low Voltage (AWD)

NOTE: Before you troubleshoot, review the General Troubleshooting Information for the AWD with intelligent control system.

AWD System - Diagnostics

1. Problem verification:

  1. Turn the vehicle to the ON mode.
  2. Check the parameter(s) below with the HDS.

AWD System - Diagnostics

Do the current condition(s) match the threshold?

YES

The failure is duplicated. Go to step 2.

NO

Intermittent failure, the system is OK at this time. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the Freeze data/on-board snapshot.

2. Rear differential fluid temperature sensor check:

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

Rear differential fluid temperature sensor 2P connector

  1. Turn the vehicle to the ON mode.
  2. Check the parameter(s) below with the HDS.

AWD System - Diagnostics

Do the current condition(s) match the threshold?

YES

Replace the rear differential fluid temperature sensor.

NO

The rear differential fluid temperature sensor is OK. Go to step 3.

3. Shorted wire check (TOH line):

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

AWD control unit 24P connector

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

AWD System - Diagnostics

AWD System - Diagnostics

Is there continuity?

YES

Repair a short to ground or the TOL wire in the TOH wire between the rear differential fluid temperature sensor and the AWD control unit.

NO

Update the AWD control unit if it does not have the latest software, or substitute a known-good AWD control unit, and recheck. If the symptom/indication goes away with the updated AWD control unit, troubleshooting is complete. If the symptom/indication goes away with a known-good AWD control unit, replace the original AWD control unit.

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