Passat V6-2.8L (ATQ) (2004)
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Check wires between test box and 3-pin connector to Engine Control Module (ECM) for open circuit according to wiring diagram.
Wire resistance: max. 1.5 ohms
Vehicles with engine code AHA
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Also test wires at socket 67 for short circuits to sockets 60 and 68.
Specified value: Infinite ohms
Vehicles with engine code ATQ
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Also check wires for short circuit to each other.
Specified value: Infinite ohms
Continuation for all vehicles
If no malfunctions are found in wires:
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Replace the respective knock sensor:
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Knock Sensor (KS) 1 -G61- cylinder bank 1
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Knock Sensor (KS) 2 -G66- cylinder bank 1
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Erase DTC memory of Engine Control Module (ECM). Diagnostic mode 4: Reset/erase diagnostic data. See: Powertrain Management/Computers
and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/With Generic Scan Tool/Diagnostic Mode 4: Reset/Erase
Diagnostic Data