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The mkiv Supra Owners Club

dash warning lights


LeeT

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since doing my manual conversion i have two warning lights up, how do i get rid of them?

the 1st one is diff oil light as ive removed the UK diff and fitted a 6spd jspec unit.

the 2nd is trac off as ive done the trac delete by removing the throttle body butterfly. the trac ecu is also removed.

something more constructive than just remove the bulbs would be good as i need to get rid of the big red light on the tacho too.

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but that would still leave the tacho main warning light on. ideally i'd like to keep the warning feature

 

Ah sorry didn't realise you had the main warning light on also. If it was just the orange trac light flashing, then it would be easy just to pull the bulb.

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As far as the diff light goes.. get a wiring diagram and trace which wires are used for the sensor and then somehow give it a dummy reading, either earth or feed, depending on the type of sensor...

 

The same MIGHT applicable to the TRAC system...

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Just looked in the manual, the Diff ECU is expecting a resistance across the sensor of 50 K ohms to 3.8 ohms which relates to an oil temp of -10 to +50c.

 

Im no electrical expert so what resistor would I need to keep it happy - around 10c?

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Got a wiring diagram here, will have a quick look to see if it goes to the diff level...

 

Either that or just get potentiameter (variable resistor) between those values, and then you can dial it in to suit..

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no, when i was ready to buy, he had stopped doing them :(

 

Lee, I've got a copy of CJ's manuals here if you need to borrow them for a while. I won't be needed them for a few weeks at least (hopefully!!)

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Lee, I've got a copy of CJ's manuals here if you need to borrow them for a while. I won't be needed them for a few weeks at least (hopefully!!)

Thanks for the offer Daryl but JohnK has just scanned me the pages i need in and emailed them to me. Thanks John:)

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  • 2 weeks later...

Just had a last minute look at this before i set off for france. For JohnK

To get rid of the warning light for the diff oil, i removed the box-like fuse in the drivers footwell. Its a pink one and is the centre one of the three. Then with the ignition on i shorted the two smaller gauge wires in the plug to the diff a couple of times and this got rid of the MIL light and the diff oil warning light.

My Trac light is still on but that doesnt bother me as its not flashing and doesnt light up the MIL light

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