Checking resistances and wires (vehicles with engine codes BDF and BJS): Notes

Knock Sensor (KS) 1 -G61-

Fig 1: 3-Pin Harness Connector For Knock Sensor 1 (Vehicles With Engine Code AFP)

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• Disconnect 3-pin harness connector at right cylinder head for knock sensor 1 (arrow).

Fig 2: Terminals 1 & 3 On Connector To Knock Sensor 1 -G61-

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• Check resistance between terminals 1 + 2, 1 + 3 and 2 + 3 on connector to Knock Sensor (KS) 1 -G61-.

Specified value: ∞ Ω

• Check wires to Engine Control Module (ECM) according to wiring diagram. Refer to Checking wires to Engine Control Module (ECM)  .

Knock Sensor (KS) 2 -G66-

Fig 3: 2-Pin Harness Connector From Knock Sensor 2

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• Disconnect 2-pin harness connector from knock sensor 2 (arrow, at cylinder block, intake side)

Fig 4: Checking Resistance Between Terminals 1 & 2 At Connection For Knock Sensor 2 -G66-

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Check resistance between terminals 1 + 2 at connection for Knock Sensor (KS) 2 -G66-.

Specified value: ∞ Ω

• Check wires to Engine Control Module (ECM) according to wiring diagram. Refer to Checking wires to Engine Control Module (ECM)  .