Oil leak and now the speedometer and odometer will not work?

Tiny
WHITEDALLAS
  • MEMBER
  • 1997 SATURN SL2
  • 4 CYL
  • FWD
  • MANUAL
  • 130,000 MILES
I took my car to an irreputable shop unknowingly for an oil leak and now the speedometer and odometer will not work. The tac does however. I have replaced the sensor twice, I was told there is not a pigtail available for the sensor. What should I do next?
Wednesday, March 17th, 2010 AT 9:13 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
If you have replaced the vehicle speed sensor and still don't have the speedometer then we need to check to make sure you have voltage from the sensor to the PCM.

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

If the PCM is getting the voltage, then we need to use a scan tool and find out if the speed is accurate.

If it is then the PCM is the issue.

I am attaching the info below on this so let's start here and let me know what questions you have.

Thanks
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Thursday, December 9th, 2021 AT 6:57 PM

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