A4 Quattro Wagon V6-3.2L (BKH) (2005)
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Switch off ignition.
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Connect test box V.A.G 1598/42 to wiring harness with adapter cable V.A.G 1598/39-1 or adapter cable V.A.G 1598/39-2; engine control module
(ECM) remains connected. Clamp test box Ground (GND) clip to battery negative terminal.
CAUTION: To avoid damaging electronic components, set measuring range before connecting test leads and observe all test requirements.
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Check the following wire connection for open circuit and short circuit to Ground (GND) and B+:
Vehicles with 4-cyl. TFSI-engine:
Harness connector Terminal
Test box V.A.G 1598/42Socket
-5-
B 27
Vehicles with 6-cyl. TFSI-engine:
Harness connector Terminal
Test box V.A.G 1598/42Socket
-5-
B 35
Repair wiring open circuit or short circuit according to wiring diagram.
If no malfunctions are detected:
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Replace Fuel Pump (FP) Control Module J538.