Honda HR-V Owners & Service Manuals

Honda HR-V: DTC C1860-98 (76-01): Differential Fluid Overheated (AWD)

Honda HR-V (2015-2021) Service Manual / Driveline & Axles / AWD System - Diagnostics / DTC C1860-98 (76-01): Differential Fluid Overheated (AWD)

NOTE:

  • Before you troubleshoot, review the General Troubleshooting Information for the AWD with intelligent control system.
  • When the clutch is presumed to be overheated, DTC C1860-98 is set and the system turns off the clutch engagement to protect the clutch. This DTC may also set under the following conditions.
    • When spinning the rear wheels while the vehicle is stuck in sand, mud, snow, etc
    • When the VSA system is OFF
  • If except DTC C1860-98 and/or DTC C1861-9A is stored at the same time as DTC C1860-98 and/or DTC C1861-9A, troubleshoot except DTC C1860-98 and/or DTC C1861-9A first, then recheck for DTC C1860-98 and/or DTC C1861-9A.

AWD System - Diagnostics

1. DTC check:

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

AWD System - Diagnostics

Is DTC C1860-98, C1861-9A, or other DTC indicated?

DTC C1860-98 or C1861-9A is indicated

Go to step 2.

Other DTC is indicated

Go to the indicated DTC's troubleshooting.

2. Tyre size check:

Check the tire size of the four wheels.

Are all tire sizes same?

YES

The tire sizes are OK. Go to step 3.

NO

Replace the tire with the standard size.

3. Rear brake drag check:

Check for rear brake drag.

Are the rear brakes OK?

YES

The rear brakes are OK. Go to step 4.

NO

Inspect and repair the rear brakes.

4. Brake system indicator check:

Pull the electric parking brake switch to apply the parking brake.

Does the brake system indicator come on?

YES

The brake system indicator is OK. Go to step 5.

NO

Inspect and repair the brake system.

5. Rear differential fluid temperature sensor check:

  1. Check the parameter(s) below with the HDS.

AWD System - Diagnostics

  1. Check the temperature of the rear differential fluid then compare it with the value checked in step 5-1.

Is the difference within Â+-54 ºF (Â+-30 ºC)?

YES

The rear differential fluid temperature sensor is OK. Go to step 6.

NO

Replace the rear differential fluid temperature sensor.

6. Rear differential fluid pressure sensor test:

Do the rear differential fluid pressure sensor test.

Is the test result OK?

YES

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

NO

Do the repair depending on the test result.

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