I bought a 2001 Chevy Suburban that the computer is not reading when put on a machine. I was told it may have electrical problems but everything in the dash panel is working inluding message center. Could it be fuses? I also replaced spark plugs but it continues to vibrate a little. The warmer the motor gets the more vibrating and hesitating it does. Any idea what this could be since I cant get a read from the service engine soon light?
Chevy Solution on 2001 Chevrolet Suburban 1500
by 01burbmomma in Mesquite, TX on September 30, 2009
ANSWER by Bret Bodas on September 30, 2009
The OBD Connector, which is where you connect a code reader, needs to have the wiring diagnosed. It should have power and ground to the connector, and a connection to the PCM. Here is a wiring circuit diagram and info about the connector: http://en.wikipedia.org/wiki/On-board_diagnostics
ANSWER by Visitor on December 05, 2010
Check the fuse panel. This is generally the problem in these subs, especially if you have connected (tapped) electric trailer brake module. It's a pain, but GM has no remedy for this prob. Just have to keep changing this fuse, mine does the same also!!