Did a search only came back with a few hits. But the people with this code, had Manual Conversions. I am getting it and I still have the auto. Also hardly any thing on TT.NET about it too. Must not be very common. So share your experence if you have had it
from memory the code means that there is a problem with the A/T controller, or the auto can not communicate with the A/T controller (little computer, sits next to ECU). I too had this in my zed (auto to manual convert), but removing the AT controller removed the error code. I would say for an auto however, its pretty important. If you need one, I still have my old A/T controller which was left in my car after the conversion. If you want, you can have it. $40 and its all yours. Cheers
it could mean there is an auto tranny error code, do a transmission diagnostic in the tech section somwhere explains how to do it lights will flash and tell you what is wrong
Close Mark... The error is signal from A/T disconnected/ not connected. It's the link between the A/T controller and the ECU. Check the loom connectors on both A/T controller and ECU. One side may have lifted up from overtightening the centre loom bolt.
My AT diag light wont come on when i turn the ignition on. I am yet to test the LOOM to make sure the bulb is ok and what not.
Something must be disconnected/shorted between the ECU and the ATCU. Code 54 (5 red flashes, 4 green flashes)A/T Control unit (1989 models)There is a short between the A/T Control unit and the ECU. This repair must be repaired by a dealer service department.
Do you mean the engine check light? If that is true, check that you haven't turned the dial on your ECU the wrong way. It took me a year to work out why my light stopped working. Spent ages pulling the cluster & replacing globes etc and it turns out my old mechanic forgot to switch it back.
