Having problems with your GMC Sonoma ?
Where is the rear anti-lock brake sensor on a 2003 gmc sonoma zr2
On both the 2wd and 4wd sonoma models the abs sensor is on the front not the rear. The way an abs system functions the wheel speed sensor sends a signal to the abs controller with the wheel speed, if it's faulty it may over activate in a sense or will revert to conventional braking in which your brakes would lock up. Your abs light would be illuminated as well. The new sensor costs about 70 dollars fyi. 10 minutes to install yourself
Repair Help & Product Troubleshooting for GMC Sonoma
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