Agreed with Andrew. When my T-Stat was stuck, it never threw a SES. I just happened to found it on a random scan prior to my Smog.
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Originally Posted by andrewwynn
The stuck tstat may have been a one-off that tripped the SES. I would monitor real-time as you just did semi regularly to see if you can catch it stick high or low.
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Quote:
Originally Posted by amancuso
Decided to use the X5 tonight to drive to dinner, and upon entering the parking lot (25 mile drive to the restaurant), it decided to grace me with an SES.
Code comes up as 279b Thermostat Jamming. Temp was constant at the center and oil temp was normal, even on the entire ride home.
I erased the code when I got home, then went out for a little 12 mile ride and it hasn't thrown the code again. Coolant and oil temp normal. I'm hoping this was just a glitch.
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