28-24
Checking power output stage
Signals to power output stage OK Page 28
-22
.
- Disconnect 4-pin harness connector from power
output stage.
- Connect VAG 1527B LED voltage tester
between Battery Positive Voltage (B+) and, in
turn, each terminal of power output stage 4-pin
connector.
- Crank starter for a few seconds in each case.
LED must blink all 4 times
If the LED in the tester does not blink for all
terminals:
- Replace power output stage.
Note:
LED testers with very little power consumption
glow slightly before cranking the engine. During
cranking they will get brighter or darker.
Pa
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11/19/2002 htt
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