audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Servicing ignition system > < Safety precautions and rules for cleanliness
General notes on ignition system
General notes on ignition system
t  The engine control unit has a self-diagnosis capability.
t  A voltage of at least 11.5 V is required for proper operation of the electrical components.
t  Certain tests may lead to a fault being detected by the control unit and stored. The fault memory should therefore be interrogated and (if necessary) erased after completing the tests and any repair work that may be required.
t  If the engine starts, runs for a short period and then cuts out after completing fault finding, repairs or component tests, this may be due to the immobiliser disabling the engine control unit. The fault memory must then be interrogated and, if necessary, the control unit must be adapted.
   

Servicing ignition system > < Safety precautions and rules for cleanliness