Passat Sedan V6-3.6L (BLV) (2008)
Knock Sensor: Testing and Inspection
Knock Sensors, Checking
Special tools, testers and auxiliary items required
‹› Wiring diagram.
‹› The mounting bolt of Knock Sensor (KS) 1 (G61)/Knock Sensor (KS) 2 (G66) tightened to 20 Nm.
‹› The Motronic Engine Control Module (ECM) (J623) fuses OK.
‹› Battery voltage at least 12.5 volts.
‹› All electrical consumers such as, lights and rear window defroster, switched off.
‹› Vehicles with automatic transmission, shift selector lever into position " P" or "N".
‹› A/C switched off.
‹› Ground connections between engine/transmission/chassis OK.
‹› Ignition switched off.
Observe safety precautions. Refer to => [ Safety Precautions ] See: Service Precautions/Safety Precautions
Observe Clean Working Conditions. Refer to => [ Clean Working Conditions ] See: Service Precautions/Clean Working Conditions
Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] See: Testing and Inspection/Scan Tool Testing
and Procedures/Preliminary Check.
‹› Before disconnecting the Knock Sensor electrical harness connectors, mark the component location.
Disconnect Knock Sensor (KS) 1 (G61) electrical harness connector- 1 - or Knock Sensor (KS) 2 (G66) electrical harness connector - 2 -.