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?


https://www.avforums.com/threads/ford-focus-anti-theft-battery-issue.2083061/


https://www.ifixit.com/Answers/View/270823/Why+does+it+say+engine+system+fault+acceleration+reduced


https://www.fordownersclub.com/forums/topic/77300-engine-malfunction-message/


Thanks in advance

Johno100

When did you last change the car battery? I know from experience with a MK2 ST that a battery that is on the way out will throw up all sort of strange faults.

Goudy

It's the instrument cluster, very common with the Focus for the soldering to fail causing all sorts of errors.

P1260 means it thinks it's being stolen!
U0001 is a high speed communication bus fault cause by the fault in the cluster.

The problem usually starts off intermittent, then one day it goes completely.

Have a look here
https://www.ecutesting.com/common-faults/ford/focus-dashdashboard-instrument-cluster/

diz79

Goudy wrote: »

It's the instrument cluster, very common with the Focus for the soldering to fail causing all sorts of errors.

P1260 means it thinks it's being stolen!
U0001 is a high speed communication bus fault cause by the fault in the cluster.

The problem usually starts off intermittent, then one day it goes completely.

Have a look here
https://www.ecutesting.com/common-faults/ford/focus-dashdashboard-instrument-cluster/

Is it possible to do yourself, do you have anyone or anywhere you would recomend?

Goudy

Err, what about here
https://www.ecutesting.com/common-faults/ford/focus-dashdashboard-instrument-cluster/

diz79

Goudy wrote: »

Err, what about here
https://www.ecutesting.com/common-faults/ford/focus-dashdashboard-instrument-cluster/

Do it yourself though, not really that is it I know I said recomend.

diz79

RIght I managed to do it 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?