You need to find where your VSS( vehicle Speed Sensor) is located. On my 2005, it is located top of the differential. There was an issue at one time of the VSS wiring chaffing the emergency brake cable. I had so many issues with this stupid sensor like no speedometer, power locks not working, erratic speed, no cruise control, and of course the check engine light on. The sensors are pretty cheap( Amazon carries them). Hope that helps.