DTC Troubleshooting: C1861-9A (76-02)
DTC C1861-9A: Vehicle Spin Detected
NOTE:
Before you troubleshoot, review the General Troubleshooting Information.
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 other DTCs are stored at the same time as DTC C1860-98 and/or DTC C1861-9A, troubleshoot other DTCs first, then recheck for DTC C1860-98 and/or DTC C1861-9A.

DTC Description
DTC
Freeze Frame
C1861-9A Vehicle Spin Detected
    

1.
DTC check:

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:

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
     
     
     
3.
Brake drag check:

Brake drag check
?1.
Check for brake drag.

Are the brakes OK?

     
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