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The mkiv Supra Owners Club

overdrive light


peter richards

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Does it go into 4th or has it disable 4th? Try resetting the ECU Pull the two 30amp trac fuses for 2 mins. Or disconnect the bat. The bat would probably be better as this resets the auto box ECU too.

 

If it still there, try the diagnostics and read the codes.

 

Have you checked the auto box fluid?

 

Just some thoughts!

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