GM Service Manual Online
For 1990-2009 cars only

Information on Inverted Knock Sensor - DTC P0327 Knock Sensor (KS) Circuit Bank 1 or DTC P0332 Knock Sensor (KS) Circuit Bank 2

Subject:Information on Inverted Knock Sensor -- DTC P0327 Knock Sensor (KS) Circuit Bank 1 or DTC P0332 Knock Sensor (KS) Circuit Bank 2

Models:2005 Buick Terraza
2005 Chevrolet Uplander
2005 Pontiac Montana
2005 Saturn Relay
with 3.5L V-6 Engine (VIN L -- RPO LX9)



This bulletin is being published to inform technicians of inverted knock sensor DTCs. Knock sensor 1 DTC P0327 will set when knock sensor circuit 2 has malfunctioned and knock sensor 2 DTC P0332 will set when knock sensor circuit 1 malfunctions. No further repairs are necessary.

If a knock sensor DTC is set, follow the procedure for the opposite knock sensor DTC in SI.