checking oil AUDI A4 2000 B5 / 1.G ATQ Engine Ignition System Checking Workshop Manual
Page 8 of 65
28-7
Ignition coils, checking
Special Tools and Equipment
VAG1526A
VAG1527B
VAG1594A
VAG1598/31
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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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