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The mkiv Supra Owners Club

Helpp! Overdrive o/d light keeps flashing


T14PPA

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Ill try that but i believe its something more complicated then that

 

You'd be surprised how a lot of the times it isn't ;)

 

Also check cables under there are connected up tight, IIRC I had a similar issue and it was a loose cable which caused the O\D to flash.

 

Do a search on the forum too.

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  • 3 weeks later...

I've been having the same problem actually. Sometimes it flashes and sometimes it doesn't. It's pretty random. I can drive the car hard, nothing happens.. Or I could drive 50 metres up my road and it comes on!.. I'll try get my mates computer on it soon. I've heard it's possibly to do with the speed limiter, not too sure on that though :s

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if you got a series 1 1993 supra, you gotta take that top panel off with all the warning lights and the odometer attached to it, and you have to cut a wire on the odometer cables and jump it on another cable, search it up on supra forums.com there is the info there on which cables to do. i had my auto doing the same thing i did the trick and it worked never came on again. The ecu doesnt know how fast the car is going right now, so its in the safe mode, so it will shift rough, and it cut off all of the limits from the ecu, so its got no speed limiter anymore (if your car is j-spec) but you can blow it up if you rev the shit out of it, is what i heard.

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I have been battling code 42 for a few years now. I have completely changed my dash clocks, resoldered the odometer, done the wire cut trick to bypass and recently had the gearbox changed to a known good one but it's still coming up. I suggest a code 42 anonymous meeting with beer and biscuits where we can have a good cry.

 

Is the cruise control linked in anyway to this? The previous owners seemed to remove a perfectly good airbag wheel with cruise control and replace it with a nasty aftermarket one, I have since swapped to a non airbag 3 spoke one without CC.

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  • 3 months later...

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