GTI V6-2.8L (BDF) (2002)
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Connect VAG 1598/31 test box to control module wiring harness. The Engine Control Module (ECM) remains disconnected.
Knock sensor (KS) 1 -G61-
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Check wiring for open circuit between test box and 3-pin connector referring to Electrical Wiring Diagrams
terminal 1 and socket 106
terminal 2 and socket 99
terminal 3 and socket 108
Wire resistance: max. 1.5 ohms
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Additionally check wires for short to one another.
Specification: infinity ohms
Knock sensor (KS) 2 -G66-
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Now check wiring for open circuit between test box and 2-pin connector referring to Electrical Wiring Diagrams.
terminal 1 and socket 107
terminal 2 and socket 99
Wire resistance: max. 1.5 ohms
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Additionally check wires for short to one another.
Specification: infinity ohms
If no wiring malfunction is detected:
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Loosen Knock sensor (KS) and tighten again to 20 Nm.
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Repeat functional check.
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Check control module DTC memory again.