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Home >> Volkswagen >> 2012 >> Passat SE, 2.5L Eng VIN P, Standard Trans >> Repair and Diagnosis (Single Page) >> 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
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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: