Test Drive Form (DSTC (Dynamic Stability and Traction Control) /Brake Control Module), Description

Test Drive Form (DSTC (dynamic stability and traction control) /brake control module), description

Note! To test drive the ABS/STC/TRACS functions, see:

Warning! Problems with the brakes may make the car difficult to maneuver. Always test drive cars under safe, controlled conditions. Follow the appropriate traffic and speed regulations.

Test driving

Note! Drive where other traffic will not be disrupted.




If work is carried out on any vital component in the DSTC system, (brake control module (BCM) or body sensor cluster stability sensor (BSC)), the car must first be calibrated and then test driven. Calibrating is carried out using VIDA vehicle communication or according to the last description in this document.
When calibrating in the workshop, position the car on a flat surface with the wheels pointing forward. With the ignition turned on, turn the steering wheel at least 15° to the right or left. Then turn the steering wheel to the center position and start the calibration.
The test drive must include at least one right and one left turn (more than 45°), cover at least 100 meters and a braking from 50 km/h to a standstill.
The car has passed the test if the dynamic stability and traction control (DSTC) system does not light any lamps (the ABS warning lamp (1), the stop (brake) warning lamp (2) or the traction control warning lamp (4)).
Calibrate and test drive as above if any work that may have affected the steering and/or the wheel alignment (straight ahead position) has been carried out.

Calibrating (adaptation) without diagnostic tools




A special test drive can be carried out as an alternative to using VIDA for calibration. Two basic requirements needed in order to carry out the calibration are that the lateral acceleration whilst driving must not be too high (no sharp turns) and the road surface must be even, smooth (no potholes, grooves etc) and not slippery.
1. Erase diagnostic trouble codes (DTCs). Certain diagnostic trouble codes (DTCs) corresponding to calibration cannot be erased until calibration has been successfully carried out
2. Drive the car a distance of 30 km (18.64 miles) with regard to the above requirements. Calibration (adaptation)has been carried out 100% after driving the recommended distance. Driving a distance of 10 km (6.21 miles) gives a calibration of up to 75-80%. Calibration is not cancelled if diagnostic trouble codes (DTCs) are stored, which means that the test drive can continue
3. Return to the workshop and read off the diagnostic trouble codes (DTCs). Calibration has been successful if no diagnostic trouble codes (DTCs) have been stored
4. If diagnostic trouble codes (DTCs) have been stored again, erase the diagnostic trouble codes (DTCs) and test drive again.