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Disconnect a service light

Tiny
ALISHA WARD
  • MEMBER
  • 2001 SATURN L100
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 178,000 MILES
How to disconnect a service light (the one with the wrench symbol)?
Monday, August 2nd, 2010 AT 8:30 AM

4 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 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.
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Monday, August 2nd, 2010 AT 12:30 PM
Tiny
JUSMARTY
  • MEMBER
  • 2 POSTS
My OBD II reader is not showing any codes, yet the service light with a wrench will not turn off.
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Tuesday, July 24th, 2018 AT 6:19 AM
Tiny
STEVE W.
  • MECHANIC
  • 13,443 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.
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Wednesday, July 25th, 2018 AT 12:43 AM
Tiny
JUSMARTY
  • MEMBER
  • 2 POSTS
Wow. Thank you that is most helpful, greatly appreciate it.
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Wednesday, July 25th, 2018 AT 5:38 AM

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