Check engine light is on

2005 CHEVROLET MONTE CARLO
170,000 MILES • 6 CYL • 2WD • AUTOMATIC
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BRENDA WARREN
  • MEMBER
  • 1 POST
Hooked up to AutoZone meter and it reads error.
Apr 29, 2019 at 7:18 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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KASEKENNY
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 18,907 POSTS
Hi Brenda,

This sounds like to me that the splice pack - SP205 has an issue. The way these code readers work is when it is plugged in it communicates with each module to pull the codes. If it reads ERROR and does not pull any code from any module then it is something that effects all modules.

In this same idea, it could be one of the grounds for the DLC, pin 4 or 5.

Please let me know if you have more questions. Here are some guides in the event you want to tackle this yourself. If you are going to and want to bounce some other ideas off me, feel free. Thanks

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-use-a-voltmeter
Apr 29, 2019 at 7:58 PM
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