» » »

GMC Q&A

Ask Your Question

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

 

Question

buscherca, Des Moines, IA, February 13, 2012, 06:03
 Rookie

Checking for codes came up with code 43 what else can I do to fix it

2 Answers
Flag This
  • Answer #1

    February 13, 2012, 06:23
     Enthusiast

    CHECK THE PLUG OR WIRES THAT GOES TO THE KNOCK SENSOR.

    Reply
    Flag This
  • Answer #2

    Ron Haugen from Westside Auto Pros, February 13, 2012, 06:29
    Profile_thumbnail
     Technician

    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.

    Reply
    Flag This