audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Checking power supply > < Checking ignition coil -N
Motronic Injection and Ignition System (4 cyl.)>06.96
Testing double spark ignition system with two ignition coils (ADR engine)
Testing double spark ignition system with two ignition coils (ADR engine)

Test requirements:

  • ◆ Fuse -S32 OK - test.
  • ◆ Spark plug connectors OK - test.
    (Resistance approx. 2 kω).
  • ◆ Ignition cables OK - test.

Ignition coils and output stage form a joint component.

This component cannot be tested by conventional measurement media/methods.

If there is a fault in the ignition system, carry out the following test:

  • ‒ Test power supply
  • ‒ Test actuation of the output stage => Page 28-15.
  • ‒ If neither of these tests reveals any fault and no ignition spark exists, replace power output stage together with ignition coils.

Checking power supply > < Checking ignition coil -N