Passat Sedan V6-2792cc 2.8L DOHC (AAA) SFI (1997)
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Connect VAG 1527B voltage tester with test leads from VW 1594 to terminals of disconnected 5-pin connector.
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Terminals 5 and 2 (ignition output 1).
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Terminals 5 and 3 (ignition output 3).
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Terminals 5 and 4 (ignition output 2).
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Operate starter and check ignition signal from Engine Control Module (ECM).
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LED must flicker.
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Switch ignition off.
If the LED does NOT flicker:
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Replace ECM -J220-.
If LED flickers:
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Connect VAG 1598/18 test box to ECM wiring harness (arrow).
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Check wiring between test box and 5-pin connector for open circuit according to wiring diagram.
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Terminal 2 and test box test box socket 8.
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Terminal 3 and test box test box socket 60.
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Terminal 4 and test box test box socket 52.
Resistance: max. 1.5 ohms.