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ford focus tddi battery light

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#1 gary5661



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Posted 28 September 2008 - 04:41 PM

my battery light has just come on on the dash i checked the belt and its good i checked the voltage without the engine running its showing 12v and if we start it it shows 13 and when i rev it it goes to 14v can any one help also my speedo has stopped working if any one got any suggestions please let me know

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#2 mintalkin


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  • Ford Model: mondeo tdci 130
  • Year: 2006
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Posted 29 September 2008 - 07:10 AM

first check that all the battery earthing points are clean and good, i don't know how old your car is but ford had some faulty instrument clusters in the focus where the speedo would stop working. suggest giving them a call as they know about the fault

#3 Rikos


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Posted 29 September 2008 - 09:48 AM

Hello and welcome to the club, you could always take the battery out and give it a good charge and see how it is afterwards

#4 jocojohn


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Posted 30 September 2008 - 06:04 PM

Hi, my son had exactly the same problem with his focus recently ( see earlier posts ) We finally traced the fault to a break in the red wire ( one of the 3 small wires going to the alternator ). The red one goes to fuse F10 I believe, in the under bonnet fuse box.

Try un-plugging this connector and test for 12 volts between the red wire and earth.

In our case, the break was about 3 inches from the alternator, which we found after peeling back the outer sleeving.


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