Mondeo Mk3 Dedicated towing loom fault - Towbars/ Trailers/ Caravans / Campers - TalkFord.com

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Mondeo Mk3 Dedicated towing loom fault

mondeo mk3 tow towbar loom wiring dedicated

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5 replies to this topic

#1 Darfyddi

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Posted 30 October 2020 - 06:34 PM

Hi all,

 

Been so long since I was last here. I have a ford loom for 13pin just plug into the lights and plug in a relay and a box thing but something doesn't seem right and my rear indicators (and I guess nothing else rear) works when the loom is plugged in. Please see the pictures:

 

Um... can't use google photos in this forum? how do I add photos in here please? then I can finish my question :)

 

Okay - may have a link to my photos.

https://photos.app.g...MFgpWBNmCxSFP47

 

If you can see my photos, I have two sockets (one black, one white) with loads of pins but only one of those big box things to plug one or the other in. I only have on 4 pin relay in the only 4 pin relay plug.

 

The lights work by pluging the towbar loom into the light cluster and the car loom into the towbar loom but 2 of the cables go (1 to)to the relay and (1 to) one of the big plugs.

 

The book that came with it shows only one big plug and box but 2 relay plugs and 2 relays.

 

I bought this loom off ebay, opened and unused but it seems to be the right llom just slightly different to the book.

 

My question is, why only one big box - should there be two and what is the other one please?

 

Cheers in advance.


Edited by Darfyddi, 30 October 2020 - 06:37 PM.

Mondeo MK3 2006 2.0L TDCi 85kW(115PS) Duratorq DI HPCR 5d Manual MTX75


#2 Darfyddi

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Posted 30 October 2020 - 07:43 PM

Found out further information:

 

There are two wires coming from the tow-loom from the car-loom that go to the relays before going back to the light cluster, they are fog and indicator.

 

I am guessing the big box is a relay and there chould be another big box relay on the other plug but not sure what code/number for the relay


Mondeo MK3 2006 2.0L TDCi 85kW(115PS) Duratorq DI HPCR 5d Manual MTX75


#3 PURPLE_2L_LX

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Posted 30 October 2020 - 08:42 PM

Did you get the right loom?   Facelift and pre-facelift dedicated looms were different.

 

Not interchangeable.

 

 

Is that the relay to disable the rear fog and reversing lights when a trailer is attached?


MK4.5 TDCI 140 Business Estate.

 

MK3 FUSE INFO CLICK HERE ... FORD WIKI CLICK HERE .... FORD ETIS CLICK HERE

Adding your location may find someone local who could offer assistance.

F-Super, Bluetooth OBDII (ELM) and a MS509 scanners (test subjects required).

ForDiag now available to victims.


#4 Darfyddi

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Posted 31 October 2020 - 02:57 AM

Hi, yes it is correct loom as far as I can tell from codes.

I went back down and tested it more,

 

The small relay for the fog I think works – fogs were on while plugged in and off when unplugged - inside relay clean and free moving. The rear side lights work too.

 

There is power to the big relay box.

 
When the indicators are on (using the nearside cluster), there is intermittent power through the tow bar loom to the white plug and it comes back out (intermittent) the big box relay straight to the black plug but not through the wire that goes to the cluster.

 

I am guessing that there should be two big box relays that work with each other, the thing I need to work out now is if the second big box relay is exactly the same as the other one or not.


Mondeo MK3 2006 2.0L TDCi 85kW(115PS) Duratorq DI HPCR 5d Manual MTX75


#5 Darfyddi

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Posted 31 October 2020 - 02:01 PM

Okay, I feel really daft now, I looked at the ecat and discovered 2 numbers associated with the big box relay, one that relates to the Volta 8545-1200 that I already have and one that relates to Volta 8545-1214 which I am guessing I need and apparently is a 'Lamp Fail Indicator Relay' which will set me back about £100..... GULP!

 

I have added a photo of it to https://photos.app.g...MFgpWBNmCxSFP47 if anyone has one spare for sale I would really appreciate it.

 

Many thanks again, I hope my ramblings might help someone here.

 

P.S. off topic... but how do I add a photo straight into my post please?

D


Mondeo MK3 2006 2.0L TDCi 85kW(115PS) Duratorq DI HPCR 5d Manual MTX75


#6 PURPLE_2L_LX

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Posted 31 October 2020 - 06:19 PM

click more reply options instead of the usual post button.

 

On the next page there are options to upload your pictures, after choosing

the picture you tick the box to embed it into the post, otherwise it just appears

as a link.


MK4.5 TDCI 140 Business Estate.

 

MK3 FUSE INFO CLICK HERE ... FORD WIKI CLICK HERE .... FORD ETIS CLICK HERE

Adding your location may find someone local who could offer assistance.

F-Super, Bluetooth OBDII (ELM) and a MS509 scanners (test subjects required).

ForDiag now available to victims.






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