Test Driving Active On Demand Coupling

Test driving Active On-demand Coupling, automatic transmission
Test driving

Warning: Ensure that the car is safely raised. Check that no objects are caught in the tire treads.

Caution: Carry out the test with the car raised so that all four wheels can rotate freely with the mounting at the ends of the control arms to prevent damage to the drive shafts.

Note: If the car has STC or DSTC, these functions must be disengaged. Press in the STC/DSTC button on the center console. Hold the button in for at least 2 seconds. The LED on the button must go out.

If the car is equipped with TRACS (traction control system) the function must be deactivated. This is carried out by removing the fuse for the ABS modulator in the engine compartment fusebox. Note that diagnostic trouble codes (DTCs) will be stored in the brake control module (BCM). These must be erased before returning the car to the customer.
- Ignition off
- Raise the car so that all the wheels are clear of the ground
- Depress the brake pedal
- Move the gear selector to position P
- Start the engine and release the parking brake
- Move the gear selector to position D
- Release the brake pedal when the car is idling. At least one wheel on each axle must rotate
- Depress the accelerator pedal (AP) and maintain a speed of approximately 60 - 80 km/h. All wheels rotate at the same speed
- Release the accelerator pedal (AP)
- Select N immediately after releasing the accelerator pedal (AP)
- Apply the parking brake when the wheels are still rotating at 60 - 80 km/h. Check that the rear wheels stop abruptly and that the front wheels continue to rotate
- Release the parking brake and depress the brake pedal. All wheels must stop
- Move the gear selector to position D
- Release the brake pedal. Check that at least one wheel on each axle rotates
- Depress the brake pedal
- Move the gear selector to position P
- Start the engine with the parking brake applied. The indicator lamp in the driver information module (DIM) must light - signal to the differential electronic module (DEM)
- Move the gear selector to position D
- Release the brake pedal when the car is idling. Check that the front wheels rotate slowly and the rear wheels do not rotate.