Click on technical information then on tsbs an wiring diagrams. Obd 2 pinout for gm cars.

32 Circuit Diagrams Amp Obd Circuit Diagrams Youtube
Obd port wiring diagram. Then the uart board is connected to a computer. Obd 2 universal iso 15765 4 can sae j1850 pwm sae j1850 vpw iso 9141 2 iso 14230 4 and sae j1939 diagnostic cable pinout status. The obd2 connector under the dash the sensors the engine control module pin out chart. Gm cars produced in 2003 2006 use j1850 vpw interface or can. The obd port can found on the dashboard near the steering wheel of every car. If the vehicles onboard diagnostic system detects a malfunction a dtc corresponding to the malfunction is stored in the vehicles computer as well as realtime data.
This pinout is associated with 47 compatible devices or models. Obd i begins standardized dtcs obd ii adds specific tests to determine the vehicles emission performance obd iii adds more features and is in the regulatory development phase. Obd ii connector wiring for ls swaps today we do a short tutorial on wiring your obd2 connector on your ls swap. Show them should be suitable for most modern gm cars buick cadillac chevrolet daewoo gmc holden opel vauxhall. Once you find the port hook up the connector and connect the other end to stn1110 obd uart board. Most gm cars produced in 1996 2003 use j1850 vpw interface.
The position of the port varies based on the manufacturer and is normally hidden in a blind spot for aesthetic reasons. Then click on i agree on the next page. Next page click on wiring diagram an enter you vehicle information an your on your way. 5 2 according to 10 reports in our database 5 positive and 2 negative this pinout should be correct.