RepairPal is your advocate for car care advice and guidance

Q: need to change the esc module were is it on 1993 GMC Sonoma

Checking for codes came up with code 43 what else can I do to fix it
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
| |
I believe that vehicle has a CPI engine, if so that code indicates a malfunction in the knock sensor system (the ESC - electronic spark control, part of this circut, is not a stand alone module, but an internal part if the vehicle's computer). This is a dual knock sensor vehicle. I am not a big fan of wasting money repalcing parts to fix a check engine light, often times it is a wiring or connection issue, or even a software update. I would suggest testing both knock sensor circuts to pinpoint the cause.
Didn't find what you were looking for?