Focus Mk2.5 I think electric problems

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Fri 2 Aug 2019 11:22
Focus Mk2.5 I think electric problems - diz79

Hi

I keep getting problems with the car not starting. Two main ones are

Engine Malfunction and Reduced aceleration.

The AA checked it and had minor fault codes but they were sure it's not mechanical.

I also had problems with the bonnet lock managed to get that sorted just about.

I then got the car serviced to make sure the car was OK.

I changed the battery in the key fob had the garage check car thoroughly.

The only fault coded ive ever got is

(U0001) and (P1260)

I'm not getting these now though when I clear the fault codes it's OK again but sometimes I cant clear them I have a basic OBD 2 reader and a bluetooth one (bluetooth is better doesent always work though, prob need seperate thread for this).

After all these checks this is I guess the next steps please see below I found these are these the best solutions does anyone else know a good way?

www.avforums.com/threads/ford-focus-anti-theft-bat.../

www.ifixit.com/Answers/View/270823/Why+does+it+say...d

www.fordownersclub.com/forums/topic/77300-engine-m.../

Thanks in advance

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Fri 2 Aug 2019 11:37
Focus Mk2.5 I think electric problems - elekie&a/c doctor
If your focus is built between 2005 -10 , then this is very likely to be an instrument pod fault . Very common issue and easily fixed by specialist repairers .
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Fri 2 Aug 2019 18:43
Focus Mk2.5 I think electric problems - diz79

Is it not possible to do yourself, do you have anyone or anywhere you would recomend?

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Fri 2 Aug 2019 18:56
Focus Mk2.5 I think electric problems - elekie&a/c doctor
I wouldn’t recommend you try and fix it yourself , unless you are confident with printed circuit board micro surgery and soldering, but I’m sure these people can help:www.ecutesting.com/common-faults/ford/focus-dashda.../
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Thu 22 Aug 2019 00:48
Focus Mk2.5 I think electric problems - diz79

Sorry for delay

I actually solded the board today where the plug goes to attach to the car. I then re atached to the car. The car started but after few mins I get the same issue with engine malfunction. The difference this time I can turn it off and re start it again. Whereas previously it wouldnt start.

But my obd2 will not connect to the car at all now its a bluetooth one and no lights light up at all on it to indicate its on. I will try my basic ob2 tomorrow.

When I soldered the parts there may be some excess solder on the connectors could this cause a problem?

Do I have to reset anything maybe thats why im getting engine malfunction still but obvs I cureently cant connec tto the car.

I also havent fully put ita back together just enough to read lcd screen etc would this affect it?

Thanks everyone

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Thu 22 Aug 2019 07:38
Focus Mk2.5 I think electric problems - Oli rag

Sorry for delay

I actually solded the board today where the plug goes to attach to the car. I then re atached to the car. The car started but after few mins I get the same issue with engine malfunction. The difference this time I can turn it off and re start it again. Whereas previously it wouldnt start.

But my obd2 will not connect to the car at all now its a bluetooth one and no lights light up at all on it to indicate its on. I will try my basic ob2 tomorrow.

When I soldered the parts there may be some excess solder on the connectors could this cause a problem?

Do I have to reset anything maybe thats why im getting engine malfunction still but obvs I cureently cant connec tto the car.

I also havent fully put ita back together just enough to read lcd screen etc would this affect it?

Thanks everyone

Yes, you could have easily bridged between pins if you have left excess solder on the card. Repairing these can be almost impossible without the necessary skills and correct equipment.

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Sat 24 Aug 2019 00:37
Focus Mk2.5 I think electric problems - diz79

RIght I managed to get some of the solder off as some of the connections ended up being together with the solder. Now its working perfectly the only problem I have now is the diognostic connector is still not working, does anyone noe how to fix this or where on the board it is?

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