Need help asap supra is on the side of the road!

Asterix

Lurker of Power
Mar 31, 2005
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36
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Vienna, VA
The only connection I can think of between the CEL, battery light, and the tail light light is ground. I'd check the engine ground cable making sure the connections are clean and tight. If your engine ground comes off all kinds of strange things happen as currents find their way back to the alternator through any convenient path, like the gauge cluster and tail lights.

If the engine stumbles and almost dies, it makes sense to get the CEL and battery lights, but why did the tail light light go on too?

Asterix
 

ForcedTorque

Join the 92 Owners Group
Jul 11, 2005
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58
Satsuma, Alabama, United States
dmiller;1477036 said:
if it means anything .............

Your CEL is working properly, as if there were no jumper in the diagnostic block. It is normal for the CEL to light while the key is in the on position, and for a couple of seconds after start. I wish my CEL would work