Disconnect a service light

2001 SATURN L100
178,000 MILES • 4 CYL • 2WD • AUTOMATIC
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ALISHA WARD
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  • 1 POST
How to disconnect a service light (the one with the wrench symbol)?
Aug 2, 2010 at 8:30 AM
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SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
Why would you want to disconnect that? It is telling you there is something wrong. It is there to alert you of a problem.
Aug 2, 2010 at 12:30 PM
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JUSMARTY
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  • 2 POSTS
My OBD II reader is not showing any codes, yet the service light with a wrench will not turn off.
Jul 24, 2018 at 6:19 AM
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STEVE W.
  • CAR REPAIR CONTRIBUTOR
  • 15,158 POSTS
That likely means you have a code in another system that your code reader cannot access. Very common. Most of the code readers can "see" the engine control module, sometimes the ABS or airbags. However there are literally hundreds of codes the systems can turn the light on for and you need a better scan tool to actually read them. The free scans many places do also are limited like that.

The wrench light is for faults that are not effecting the emissions.
Jul 25, 2018 at 12:43 AM
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JUSMARTY
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  • 2 POSTS
Wow. Thank you that is most helpful, greatly appreciate it.
Jul 25, 2018 at 5:38 AM
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.