ford focus c-max 1.6 tdci various problems

[giama]

These cars are subject to a malfunction of the alternator....
Of course its malfunction results in a series of exclusions...first of all, the electric power steering cesser? of work.

[MultiBravo]

checks to see if the thin wire that goes to the terminal D+/IND/THE alternator comes the positive when you turn the key in the gear.
you can also detach it and bring you momentarily positive with a wire wheel to "trigger" the alternator and see if it loads (the cio? reaches 14V nominal) motor in motion. Even if they write in the manual that exceeded 2000g/min of the engine should load the same due to the residual magnetism in the rotor...
let us know!

[michele30]

hello to the thread that you say, what? the red comes the positive, and the alternator is charging 13.5 v fixed .

[giama]

In this type of alternator there is a plug three-way, where we find:

1:red Wire that will be? the thread of excitement " D+ ",which is necessary to the rotor finch? can generate even at low engine speeds, the magnetism,the fields, external hard turn in amperes and volts.Here, we will always find a positive fixed +30 protected by a fuse..

2:the Blue Thread Transmits to the engine control unit, the signal charge in Volts,in the form of a square wave, positive digital,with a constant frequency,where the value in volts sar? given by the real height " Width " of the square wave

3:Grey Wire Also transmits to the engine control unit,the signal of the charge but in this case, in ampere,in the form of square wave, positive digital,at a constant frequency,where the value of the amperage will be? given by the width percentage of the square wave or duty cycle..

[MultiBravo]

ok, so the 2 and the 3 are practically the control of the voltage and the current delivered by the alternator...

then, the control unit of the smart charge if it detects 13.5 volts ignite? the light why? ? under the charging voltage (the famous 14V) and there we are..

Determined, therefore, that the red wire to the D+ on the positive side, I have to say that the problem ? the regulator of the alternator..
With the loads (lights, air conditioner, disappanamento..) how to adjust the voltage? remains fixed at 13.5? up to a p??

[michele30]

watch now c'? the under hand, why?he is making a diagnosis a workshop ford in the vicinity, but for what I have said to them , the problem would be the engine control unit to re-encode, since you do not ? the original, taken in the demolition, but codes are the same now.
I have been told ford that the ecu see a load of 13.5 v fixed, but I don't know if speeding up always remains so.
it can be that the ecu then not hearing the famous 14v to manage the battery indicator and always remains turned on the light?

[MultiBravo]

might just be cos?, at least ? a hypothesis that I do, in my opinion you have to proceed step by step when you have several problems..
however, if ? a centre of serious and prepared, should give you the right indications, since they will know well how it works is the ecu smart charge..

[domenic68]

these two codes are one battery to the other framework tools