Thread: Disco 2 off road at automatic mechanics

The only reset you can do on the Auto ECU is reset adaptive settings. Which should only be done when a new box is fitted as it adjusts itself at a known rate (also based on feedback) to allow for wear.

They seem to have been covering all the bases, autos are a black art and the information on a fault doe not always point to the cause. Just the problem.

I just read somewhere that there is a rear temp sensor on the rear LH/Passenger side of the auto.

Can anyone confirm this???

I think there were a couple of loose wires there somewhere..

More Info.....

"There is also another temp sensor located on the back of the transmission (driver's side ( our passenger side LH)). Easy to get to and may have been affected if you were in deep water. Try unplugging it and see if your light goes out. I would start there first as the one on the cooler is a bit harder to get at."

Here: Disco II Transmission Temp Sensor - Land Rover Forums - Land Rover Enthusiast Forum

I can't confirm your comments, I can, however, confirm that the ECU won't lock up the converter when the transmission temp is too cold.

Cheers
Keithy

Originally Posted by DiscoKym

I just read somewhere that there is a rear temp sensor on the rear LH/Passenger side of the auto.

Can anyone confirm this???

I think there were a couple of loose wires there somewhere..

More Info.....

"There is also another temp sensor located on the back of the transmission (driver's side ( our passenger side LH)). Easy to get to and may have been affected if you were in deep water. Try unplugging it and see if your light goes out. I would start there first as the one on the cooler is a bit harder to get at."

Here: Disco II Transmission Temp Sensor - Land Rover Forums - Land Rover Enthusiast Forum

that sensor is for the transfer case, not the auto trans. it is parralelled with the auto trans cooler sensor and usually only fitted to v8 models.

jc

Thanks Justin and Keithy..

One thing they did say over the phone (from what I can remember) was that the lockup servo on the diagnostics said open then closing but did go to closed??

Would have thought they'd tested the ecu out puts before changing the valve body. ..

There's no way they can monitor the line pressure to confirm the solonoid is working?

The TC not locking is only a TD5 thing---

Originally Posted by benji

Would have thought they'd tested the ecu out puts before changing the valve body. ..

There's no way they can monitor the line pressure to confirm the solonoid is working?

They have had two test kits connected to check out the TCU.

I think there is a bolt they can tap into for line pressure. They are the specialists so they should know.

I have also read rebuilt converters giving problems..