volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Safety precautions > < Repairing ignition system
General notes on ignition system
General notes on ignition system
t  For trouble-free operation of electrical components, a voltage of at least 11.5 V is necessary.
t  During some checks, it is possible that the control unit will detect and store a fault. Therefore, after completing all checks and repairs, read the fault memory and erase if necessary → Chapter.
t  If, after fault finding, repairs or component tests, the engine starts, runs for a short period and then stops, then the fault may be that the immobilizer is blocking the engine control unit. In this case, the control unit must be adapted → Vehicle diagnosis, testing and information system VAS 5051.
   

Safety precautions > < Repairing ignition system