TUSCAN DOOR ECU

[tuscandani]

Hello all,
My Drivers Door window is not moving up or down but door mechanism working perfectly fine. Looked at the door yesterday and the cables looked ok in the Encoder. Opened up the door but seemed ok, did not change over the over side as you know what it is like when you start tampering with unbroken things

What would you suggest is the issue as the passengers side is perfectly fine.

Could it be the ECU? Also, where does the ECU live in a Tuscan Mark 1?

Thanks

[mk1fan]

Can people confirm whether there is a separate window module/ecu for the windows and where they are located in a mk1 Tuscan. Dani does not mean the engine ECU.

Thanks.

[tuscandani]

Thanks Dad, LOL.

mk1fan said:

Can people confirm whether there is a separate window module/ecu for the windows and where they are located in a mk1 Tuscan. Dani does not mean the engine ECU.

Thanks.

[S6 Devil]

There is a window encoder in the door under the window mechanism. There are 2 door ecu's under the centre console. There is a microswitch in the door latch. Not sure if that helps!

[mk1fan]

S6 Devil said:

There are 2 door ecu's under the centre console.

Thanks, it does help.

[ukdj]

I did suggest to Dani yesterday that he could switch the ecu (located under the centre console forward of gearstick) from the working passenger side to the drivers side to prove/disprove that was at fault, but as he stated he was reluctant to tamper with the working side.

Ultimately he'll probably need to have the ecu's out just to check the connections anyway, so easy to swap them over to test at that point.

[8ball_Rob]

FYI, in my early Mk1 (Jan 2000) the door/window ECUs are both located under the centre console, but to the rear of the handbrake as opposed to in front of the gearstick. Either way though they should be pretty easy to spot once you've got the centre console off.

[tofts]

Check the battery, first sign of a dying battery is what you describe even though it can still start the car ok. Do the symptoms disappear with car running?

if not, this

ukdj said:

I did suggest to Dani yesterday that he could switch the ecu (located under the centre console forward of gearstick) from the working passenger side to the drivers side to prove/disprove that was at fault, but as he stated he was reluctant to tamper with the working side.

Ultimately he'll probably need to have the ecu's out just to check the connections anyway, so easy to swap them over to test at that point.

Edited by tofts on Saturday 19th November 01:16

[tuscandani]

Hi guys, changed over the door control units and the driver side still doesn't work at all. Even used the spares I had which are in great condition. Funny thing was that whilst investigating, my right hand side door control was on the left hand side and yes the left one was on the right.

So I can say it is definitely something else now. Atleast it's a lovely crisp sunny Saturday.

[tuscandani]

Is the only other option be the problems with the actual Encoder?

[tofts]

tuscandani said:

Hi guys, changed over the door control units and the driver side still doesn't work at all. Even used the spares I had which are in great condition. Funny thing was that whilst investigating, my right hand side door control was on the left hand side and yes the left one was on the right.

So I can say it is definitely something else now. Atleast it's a lovely crisp sunny Saturday.

Does sound like a dodgy main battery to me, had a tamora with EXACTLY the same symptoms. Swapped modules and the problem didn't move, tried a new module and it was the same. New main battery and everything was cured!

Edited by tofts on Saturday 19th November 18:06

[Macey]

I would go with changing the door encoder, if you have tried the passenger door ECU and the symptoms are still there. It may not be the wires but the actual reader that can wear out if the "Fan Wheel" is not 100% true in its rotation. This happens on mine.

[blueg33]

Sounds like a door encoder problem to me. They are a known weak point IIRC

[NorfolkSteve]

I have exactly this problem with my driver's side window at the moment.

I have changed the encoder in the door with no improvement, I have also send off the door ecu for repair (don't know what fault was found or what the repair was), again when refitted no improvement (very disappointed at this point). Checked all fuses to no avail, and tried swapping door ECU's, but drivers side window still won't work with passenger side ECU (interestingly, passenger side window also won't work with driver's side ECU). Ready to admit defeat and waiting for a dry day to take it to someone with more electrical diagnostic skills than mine (not hard!).

Please post if you find a fix for yours first...

[tuscandani]

Thanks all, will do. I'll keep you all posted. Thanks

NorfolkSteve said:

I have exactly this problem with my driver's side window at the moment.

I have changed the encoder in the door with no improvement, I have also send off the door ecu for repair (don't know what fault was found or what the repair was), again when refitted no improvement (very disappointed at this point). Checked all fuses to no avail, and tried swapping door ECU's, but drivers side window still won't work with passenger side ECU (interestingly, passenger side window also won't work with driver's side ECU). Ready to admit defeat and waiting for a dry day to take it to someone with more electrical diagnostic skills than mine (not hard!).

Please post if you find a fix for yours first...

[tuscandani]

Shall I buy the Encoder door glass part, as in TVR ME0424? Cheers

blueg33 said:

Sounds like a door encoder problem to me. They are a known weak point IIRC

[tuscandani]

Shall I buy the Encoder door glass part, as in TVR ME0424? Cheers

blueg33 said:

Sounds like a door encoder problem to me. They are a known weak point IIRC

[blueg33]

tuscandani said:

Shall I buy the Encoder door glass part, as in TVR ME0424? Cheers

blueg33 said:

Sounds like a door encoder problem to me. They are a known weak point IIRC

I think you need to test the micro switch first

[Macey]

tuscandani said:

Shall I buy the Encoder door glass part, as in TVR ME0424? Cheers

That is the correct part number for the Encoder. Where in Surrey are you based, if not to far away then I could let you try one of my spares.

Edited by Macey on Monday 21st November 15:41

Edited by Macey on Tuesday 22 November 08:44

[S6 Devil]

Have you checked the microswitch in the door latch? It may need the arm bending into a better position and some contact cleaner sprayed on it.