DTC C1861-9A (76-02): Vehicle Spin Detected

NOTE: 

• Before you troubleshoot, HOW TO TROUBLESHOOT THE REAL TIME AWD SYSTEM (AWD) .
• When a vehicle spin is detected, DTC C1861-9A is set for the purpose of protecting the real time AWD system. When this condition occurs, the system will temporarily stop the real time AWD function. This DTC may also set under these conditions.
• • When spinning the rear wheels while 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.

DTC (Real Time AWD)

1. DTC check

   - 1. Turn the vehicle to the ON mode.

   - 2. Check for DTCs with the HDS.

   DTC Description	DTC	Freeze Frame

   Is DTC C1860-98, C1861-9A, or other DTCs 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. Tire size check

   - 1. 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

   - 1. Check for rear brake drag.

   Are the rear brakes OK?

   YES 

   The rear brakes are OK. Go to step 4.

   NO 

   BRAKE SYSTEM SYMPTOM TROUBLESHOOTING - RAPID BRAKE PAD WEAR, VEHICLE VIBRATION (AFTER A LONG DRIVE), OR HIGH, HARD BRAKE PEDAL .

4. Brake system indicator (red) check

   - 1. Apply the parking brake.

   Does the brake system indicator (red) come on?

   YES 

   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.

   NO 

   BRAKE SYSTEM INSPECTION & TEST .