A4 Quattro Sedan L4-1.8L Turbo (AWM) (2001)
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If LED lights up:
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Checking activation.
Checking activation
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Connect VAG1598/31 test box at wiring harness to Engine Control Module (ECM), do not connect ECM.
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Check the following wire connections for open circuit and short circuit to Ground (GND) and B+:
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Repair open circuit or short circuit if necessary.
