SERVICE AND SERVICE ENGINE SOON LIGHTS ARE ON

2002 Saturn Vue

Tiny

putnamrichardson

November, 11, 2012 AT 10:30 PM

"Service" and "Service Engine Soon" lights are on. No DTC codes are showing. Engine runs great, transmission shifts perfectly. No known issues or problems. If the lights weren't on you'd swear the Vue was perfect. The only other indicator is the Tach. At cruise speed it will drop to "0" then pop back up to right RPM. It wil do this every minute or so, no regular pattern like there's a short, but I don't believe a short is the issue.

My Question: Why are the lights on and the Tach acting strange? BCM? Or what? Thanks.
Putnam

FOUND 16895 RELATED QUESTIONS

1 Answer

Tiny

saturntech9

November, 12, 2012 AT 1:41 AM

I would have the bcm etc scanned for codes the diyer scan tools only read a engine and transmission codes you could have a bad bcm.

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