My check engine light keeps coming on and then.

Tiny
ANONYMOUS
  • MEMBER
  • 2003 SATURN VUE
  • 150,000 MILES
My check engine light keeps coming on and then going off, also the gas gauge, speedomoter and rpm does the same, a mechanic told me it could be the ecu, the car is not running bad.
Saturday, March 16th, 2013 AT 9:57 PM

2 Replies

Tiny
RANDICO
  • MECHANIC
  • 174 POSTS
The 2003 Saturn instrument panel is now considered a Module, The fuel gauge performance and speedometer performance is set in the ECM. You may have a faulty connection to instrument panel to ECM Over all the instrument panel is controlled by the BCM (body control module). Any code for this instrument panel will be in B codes
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Saturday, March 16th, 2013 AT 10:17 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
The body control module has a way higher failure rate then ecm. Also when the bcms fail they usually don't set a code in the BCm.
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Saturday, March 16th, 2013 AT 11:05 PM

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