Yaris ECU broken??!!!!!!

[CTScott]

Originally Posted by phb10186

OK, back to the original question...

I am talking about a 2005 1.0 litre automatic Yaris here (man that must be slow)...

... do we have a separate ECU for the gearbox and engine, or just one.

I know the manuals only have one.


.... In addition, could someone please send me some sample part numbers, as I would like a comparison.

MT

Ben

If it has the sequential shift transmission, then there is a separate ECU for the transmission (part number 89530-52090, as you posted above). Otherwise if it has the basic automatic transmission, then there is not a separate ECU for the tranny.

The ECM part number would be 89661-nnnnn, where the second part could be 0D180, 0D190, 0d090, 0D091, etc.

If you can give me the VIN for the car (you can PM it to me if you don't want to post it), I can look up what part number is actually in it.

[phb10186]

Originally Posted by CTScott

If it has the sequential shift transmission, then there is a separate ECU for the transmission (part number 89530-52090, as you posted above). Otherwise if it has the basic automatic transmission, then there is not a separate ECU for the tranny.

The ECM part number would be 89661-nnnnn, where the second part could be 0D180, 0D190, 0d090, 0D091, etc.

If you can give me the VIN for the car (you can PM it to me if you don't want to post it), I can look up what part number is actually in it.

Yes it does have the sequential shift auto, so the fact that there is a second ECU checks out. The part number is definately right.

[CTScott]

Originally Posted by phb10186

Yes it does have the sequential shift auto, so the fact that there is a second ECU checks out. The part number is definately right.

OK, so are they saying that the transmission ECU is bad or the main ECM?

[phb10186]

Originally Posted by CTScott

OK, so are they saying that the transmission ECU is bad or the main ECM?

Yes, they are saying that the tranny ECU is shot... which I have trouble with... but I did a google search and there are multiple problems with this 1.0 MMT semi-auto system. So much so that... they still make it!

If ECU's are going Toyota should have made a recall, as I would argue that it is a safety issue, as a breakdown is a safety issue.

Toyota want 12,00 Euro's, which is like $1500 or £1000 for the ECU. I have found a guy that has a tranny complete with ECU for £395, but that's no use for me, as I will post the ECU to Grease, and have a surplus tranny.

Actually scrap parts in the UK tend to be pretty cheap... typically £50-100 for any ECU that is not special in any way.