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1997 Buick LeSabre Custom 4dr Sedan

1997 Buick LeSabre
Trim Info:
Front Wheel Drive, 4 Dr Sdn Custom, Large Car
19 mpg city / 30 mpg hwy
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October 14, 2013, 6:41 pm

Darrin P
 

Question: Service engine soon light not coming on when you turn the key, can't get it smogged.

I have a 92 Buick Lesabre, took it to get smogged but they said it was a automatic fail because the service engine soon light won't come on when you turn the key. So I took apart the gauge panel and checked the bulb, it was out and I switched it with a good one. Still isn't coming on, so I checked the fuse box, and everything is good there.....what else could it be???


October 28, 2013, 3:33 pm

Elizabeth K
Expert Mechanic

Check to see if the bulb socket has power and ground. If not, it should be getting them through the ECM (computer module). Check a wiring diagram if you're missing power or ground to be sure--but the light is turned on by the ECM--so the problem may be originating there.


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