fuel pump AUDI A8 1998 D2 / 1.G ATQ Engine Ignition System Checking Workshop Manual
Page 13 of 65
28-11
Checking voltage supply to ignition coils
Note:
Voltage is supplied to ignition coils via Fuel
Pump (FP) relay.
Test requirement:
Fuse for ignition coils OK
Electrical Wiring Diagrams, Troubleshooting &
Component Locations binder
If LED does not light up: - Connect VAG1527B voltage tester as follows:Harness connector
Terminal
Measure to
1 Engine Ground (GND)
- Operate starter.
LED must light up.
- Check the wire connection for open circuit:
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