C1299

DTC C1299

Circuit Description

If wheel slip continues, differential control will be disabled when the torque-distribution ratio of the differential clutch exceeds the set value and a malfunction in the output of the wheel speed sensors, etc. occurs.

If a difference in diameter between the front and rear wheels is determined, differential control will be disabled.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC C1299 Cancellation of 4WD Control

Conditions for Running the DTC

This DTC shall run when the ignition is On.

Conditions for Setting the DTC

When one of the following conditions is met:

* Control coupling lock is detected 4 more times.
* Condition that controls coupling calorific value is predefined value or more.
* Condition that transfer oil temperature is predefined value or more.
* Vehicle is driven and energy load tire radius difference between front tires and rear tires is more than 3 percent.

Action Taken When the DTC Sets

The 4WD control module will prohibit operations by the fail safe function.

Conditions for Clearing the DTC

The DTC will clear when conditions for setting the DTC have been repaired.