The automatic variant code detection, detects which systems that are available in the car: Engine type, transmission type, 4WD and electronic parking brake.
This function is used when installing a control module from another car, or if fault code C1702 (Variant Coding Error) is in the system (ABS/EBD/ESP).
Test conditions:
Ignition on, engine off.
Battery voltage above 12V.
No fault codes should be stored in the fault memory.
Before resetting of the variant code, check that all relevant control modules are installed correctly.
Procedure:
Start the function.
Follow the instructions in the program.
The function is done.
If the function fails, check the test conditions and repair any faults.