e550 problems
i've been a toyota tech for 10 years so i do have experience in the automotive field mostly in Jap cars and some domestic but not too much in euros.
with that said, he just purchased a e550 and it was having traction control problems. it would be fine until he moves the car, then the ESP light would come on and the button will not turn it off. only way to turn it off is to turn the car off and back on but as soon as the car moves it will come back on.
he had the codes scanned but i've never seen codes like these (not P codes).
7226 DTR distronic consequential fault
47D4 CAN signal "outside air temp" from Cont. unit A1 (instrument cluster) is implausible.
4751 No CAN message was received from control unit Transmission control module
4759 No CAN message was received from control unit Engine control module
7284 check codings in control module N93 (centtral gateway control unit)
4D70 one or more signals sent from control unit N80 (steering column module) via the CAN bus is implausible
i've been searching all over but cant seem to find anything. any help would be greatly appreciated.
thank you
Is there something the STAR tester does that a Matco tester? I'm sure there a lot but maybe for those specific issue the matco tester can do it.
Also, if I replace that computer do I need to be able to program it?
Thanks again for all your help
he also just mentioned to me that the rear wheels collect brake dust extremely fast. i also noticed this, his front wheels would be clean and free of brake dust but the rears would look like they havent been washed in years...completely black. i doubt its normal but i also double he has 2 bad calipers. do you think theres any connection with the 2?
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he also just mentioned to me that the rear wheels collect brake dust extremely fast. i also noticed this, his front wheels would be clean and free of brake dust but the rears would look like they havent been washed in years...completely black. i doubt its normal but i also double he has 2 bad calipers. do you think theres any connection with the 2?
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Unless you got some aftermarket pads or rotors that could be causing it as well.
And its also possible one of your calipers could be sticking or both of them but the only way to tell that would be to find the min/max spec of rotor thickness, measure accordingly and measure run out of the rotor and brake lining thickness.


