A4 V6-3.0L (AVK) (2004)
-
Disconnect power supply relay -2-.
-
Check for open circuit in following wiring according to wiring diagram:
Relay carrier in electronics box,
Connection of ignition
plenum chamber, position 2
coils
terminal
terminal
8
1
-
Repair open circuit, if necessary.
If no wiring malfunction is detected:
-
Check voltage supply of Motronic Engine Control Module (ECM) power supply relay -J271-.
-
Check actuation of Motronic Engine Control Module (ECM) power supply relay -J271-.
Checking power supply
-
Connect multimeter as follows to measure voltage.
Relay carrier in electronics box,
Measure to
plenum chamber, position 2
terminal