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Home › Volkswagen › 2012 › Passat S, 2.5L Eng VIN P, Automatic Trans › Repair and Diagnosis › Engine Performance › Engine Control Systems › 2.5L - Generic Scan Tool - Engine Code(S): CBTA & CBUA › St Generic Scan Tool › Diagnosis And Testing › Diagnostic Procedures › Knock Sensor, Checking › Test Procedure

Test Procedure

-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK 

Start diagnosis

-- Remove the engine cover. Refer to the Repair Information.

NOTE:

Before disconnecting the Knock Sensor electrical harness connectors, mark the component location.

-- Disconnect the Knock Sensor (KS) 1 -G61- electrical harness connector or the Knock Sensor (KS) 2 -G66- electrical harness connector.

Checking internal resistance

-- Using a multimeter, check the Knock Sensor terminals 1 to 3 for an internal short.

Specified value: ∞ (Infinity or OL reading).

If the specified value was Not obtained:

-- Replace the shorted Knock Sensor (KS) 1 -G61- /Knock Sensor (KS) 2 -G66-.

If the specified value was obtained:

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