lights AUDI A4 1999 B5 / 1.G AWM Engine Camshaft Timing Control Workshop Manual

15-96


If the LED does not light up:
Electrical Wiring Diagrams, Troubleshooting & Component Locations
binder
If the LED lights up: - Connect voltage tester VAG 1527 B as follows:Connector
contact
Measure to
1 Engine Ground
- Operate starter briefly.
LED should light up.
- Check wiring from contact 1 on connector via fuse to fuel pump relay
for open circuit:
- Correct open circuit, if necessary.
- Check actuation.
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15-97

Checking actuation

- Connect voltage tester VAG 1527 B to contacts 1 (positive) and 2 of
connector.
- Initiate output Diagnostic Test Mode (DTM) and activate solenoid valve
for camshaft adjuster.
Output Diagnostic Test Mode Camshaft timin
g control

Display
If the LED lamp does not flash or if it lights up continuously:
Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Fuel Injection & Ignition,
Engine Code(s): AWM, Repair Group 24

LED should flash.
- Connect the VAG 1598/31 test box to wiring harness leading to engine
control module (the engine control module should not be connected):
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ge 6 of 7 Camshaft timin
g control, checkin
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11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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e=re
pair&id=AUDI.B5.GE06.15.3