Gm Knock Sensor Wiring Diagram. I have the sensor and box recommended but. Most of the wiring in the harness has been pre terminated to the proper connector and all wire has been gm color coded.
Thank you and here is the diagram for 48 53 60 knock sensor mounting. The knock signal therefore rides on the 25 volts bias voltage if using a 500 v ref. The knock circuit due to its higher voltage level bias voltage will not pick up any ground noise interference.
Chevy knock sensor wiring harness gm vehicles.
Turn the socket to the left to loosen the bolt. A single wire connects the knock sensor to the esc electronic spark control module and it grounds through the block. There is another post in this section with pictures of the knock sensors in the same location as mine the post is p0332 knock sensor 2002 sierrahelp. I replaced engine in my 1999 silverado with engine from 2002 blazer same vin identifier w vortec 43 v6 two differences in the engines are oil level sensor in oil pan and type of knock sensor old sensor one wire.