Page 1 of 2
TCU location
Posted: Tue Sep 08, 2015 8:05 pm
by bilko1
I'm getting a few TCU comms errors in the Engine ecu, ABS module and Instrument cluster so want to check the TCU for poor connections etc. Can someone tell me its location on a 2003 RHD please. I had the passenger side carpet up a year or so ago and remember seeing a box with a module inside but thought this was the convenience module.
Re: TCU location
Posted: Tue Sep 08, 2015 8:46 pm
by launching_rs4
On my RHD RS6 its under the front carpet on the drivers side
Re: TCU location
Posted: Tue Sep 08, 2015 9:19 pm
by drybeer
On RHD it's in the passenger's footwell area, and the unit under the passenger's seat is the convenience ECU IIRC.
Re: TCU location
Posted: Tue Sep 08, 2015 9:34 pm
by Shoppinit
launching_rs4 wrote:On my RHD RS6 its under the front carpet on the drivers side
Your signature pic is a bit on the big side.
Re: TCU location
Posted: Wed Sep 09, 2015 8:14 am
by bilko1
God I'm still confused, Drybeer says it's on the passenger side and launching rs4 says it's on the drivers side.
The only thing I know for sure is Bam hasn't got one on his Avant
Re: TCU location
Posted: Wed Sep 09, 2015 8:39 am
by Shoppinit
Shoppinit wrote:Where is the TCU? Driver or passenger side?
Daveperc wrote:Passenger side - along with a variety of other systems - all designed to get wet!!
Dave
Re: TCU location
Posted: Wed Sep 09, 2015 8:44 am
by bilko1
Ok
Shop, I trust you I'll take the passenger side apart. It's strange as I had the passenger side apart a few years ago when I had water coming in up the air con drain funnel. I found the black plastic box but only saw a convenience unit in it.
Re: TCU location
Posted: Wed Sep 09, 2015 8:46 am
by Shoppinit
Hmm... Found this:
That looks more like convenience module...
Re: TCU location
Posted: Wed Sep 09, 2015 8:49 am
by bilko1
Yes that looks exactly like what I found under my carpet, the casing is plastic. Afaik the TCU has a metal / alloy casing
Re: TCU location
Posted: Wed Sep 09, 2015 8:50 am
by Shoppinit
It does. But it's in a plastic box. Also is only has one large connector.
More info here...
http://www.vwaudiforum.co.uk/forum/show ... post725998
Re: TCU location
Posted: Wed Sep 09, 2015 8:51 am
by Shoppinit
Looks like this:
Re: TCU location
Posted: Wed Sep 09, 2015 9:16 am
by gmac78
Defo under UK drivers side front carpet in a black plastic box. Had mine out last year when sending to Viper.
Re: TCU location
Posted: Wed Sep 09, 2015 9:50 am
by launching_rs4
Its definitely under the drivers side front carpet, I had to go in there to confirm I had a MTM TCU. The TCU is a metal case like the ECU but it's enclosed in a plastic box, have to pop that open first to access it. The convenience/comfort unit is under the carpet on the front passenger side.
This is a RHD vehicle and I'm in Australia
Re: TCU location
Posted: Wed Sep 09, 2015 4:34 pm
by bilko1
Bet that cost a small fortune in Australia.
Re: TCU location
Posted: Thu Sep 17, 2015 1:30 pm
by bilko1
