Honda HR-V: DTC C1841-27 (43-01): Differential Fluid Temperature Sensor Circuit Range/Performance Problem (AWD)

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

1. DTC check:

1. Turn the vehicle to the ON mode.
2. Check for DTCs with the HDS.

Is DTC C1841-11, C1841-13, or C1841-27 indicated?

DTC C1841-11 is indicated

Go to the DTC C1841-11 troubleshooting.

DTC C1841-13 is indicated

Go to the DTC C1841-13 troubleshooting.

DTC C1841-27 is indicated

Go to step 2.

2. Problem verification:

1. Clear the DTC with the HDS.
2. Start the engine, and let it idle for 1 minute.
3. Check for DTCs with the HDS.

Is DTC C1841-27 indicated?

YES

The failure is duplicated. Go to step 3.

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.

3. Rear differential fluid temperature sensor check:

1. Check the parameter(s) below with the HDS. Make note of this value as it will be needed in the following steps.

2. Turn the vehicle to the OFF (LOCK) mode.
3. Turn the vehicle to the ON mode.
4. Check the parameter(s) below with the HDS then compare with the value checked in step 3-1.

Did the sensor value change?

YES

Check for an intermittent open or short in the TOH and/or TOL wires between the rear differential fluid temperature sensor and the AWD control unit, and recheck.

NO

Replace the rear differential fluid temperature sensor.

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