24-158
Checking voltage supply for intake manifold
tuning valve -N156-
Test requirements
Fuse for for intake manifold tuning valve OK
- Disconnect harness connector from intake manifold tuning valve.
If LED does not light up: - Connect LED test lamp VAG1527 with wires from test kit VAG1594
between terminal 1 (B+) of 2-pin connector and engine Ground.
- Crank starter.
LED must light up.
- Check fuse for -N156-
Pa
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11/23/2002 htt
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