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Fabia 2003 1.4 AME engine alternator problem

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I'm confused now because earlier in the thread you said it had no A/C.

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I'm confused now because earlier in the thread you said it had no A/C.

This is another story,I installed an A/C in the local market in Egypt.that was a sanden Japanese compressor and they removed the old bracket for alternator and replaced with a local made bracket for both compressor and alternator and so the original V ribbed belt has been changed to another non standard Fabia size which is now 5pk1400 (has nothing to do with Fabia).

This A/C has caused me many troubles since that time.So I was asking for that original belt for the following reason:

I am thinking to look for a used bracket and compressor plus a used alternator and put all of this to make this area standard at least not to have more trouble regarding this area.

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This is a general regulator.

I want to use it in my Fabia.

It looks like needs ground and rotor winding but pin 15 should be connected how?

Anybody can help where to connect pin 15 and does it need a new wire or it is already available in alternator connection.

post-141462-0-47454500-1458536599_thumb.png

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Does anybody have a data sheet or pin assignment for IC Motorola 9RC6067M (smart regulator).this is the one in the L DFM regulator in my Valeo Alternator and I need to check continuity to each pin to make sure nothing is disconnected.

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Which wire goes to the alternator to give the excitation winding the necessary current to start the magnetic field to let the alternator gives an output voltage then excitation winding gets the current from stator output as the normal source during engine running through the regulator circuit Output???

I am sure in old car this wire was coming from ignition SW through Alt Dashboard Lamp.but in Fabia..???

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See post #13. I wasn't guessing, I was looking at the current flow diagram, the one for your car.

 

It comes out of this unit:

 

20160201_195530.jpg

 

 

Ignore the red circle, that was illustrating something else. In this case the pin is up near where it says 49/02 at the top of the picture.  This unit sits under the dashboard, on driver's side, under the relay sockets.

 

It's the same on my 9N Polo, here:

 

20160321_090118.jpg

Edited by Wino

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Here's a view of the circuit-board area relevant to the alternator blue wire. This is inside that Onboard Power Supply Control unit shown in previous post:

 

20160101_180300.jpg

 

An ignition 12V feed comes in on pin 12 of the same connector, goes through a diode, and then through 4 parallel 1206-package 820 Ohm resistors (so 205 Ohms effectively) ,and then out on pin 9 to the alternator. Other connected circuitry presumably monitors the voltages of both ignition 12V and blue wire.  I ran out of enthusiasm for tracing everywhere else that those areas connected to, at that time.

 

I haven't done a similar investigation on how the battery light is connected within the Instruments module circuit board, but I expect there are a couple of microcontrollers involved, one in that module, one in this one, and all the information between them is by CAN bus.

Edited by Wino

  • Author

Here's a view of the circuit-board area relevant to the alternator blue wire. This is inside that Onboard Power Supply Control unit shown in previous post:

 

20160101_180300.jpg

 

An ignition 12V feed comes in on pin 12 of the same connector, goes through a diode, and then through 4 parallel 1206-package 820 Ohm resistors (so 205 Ohms effectively) ,and then out on pin 9 to the alternator. Other connected circuitry presumably monitors the voltages of both ignition 12V and blue wire.  I ran out of enthusiasm for tracing everywhere else that those areas connected to, at that time.

 

I haven't done a similar investigation on how the battery light is connected within the Instruments module circuit board, but I expect there are a couple of microcontrollers involved, one in that module, one in this one, and all the information between them is by CAN bus.

Would you please review with me the following conclusion :

Regarding the ELO external regulator from its specs below.

post-141462-0-62263700-1458584347_thumb.png

I can connect this ELO regulator case to ground pin67 to rotor winding (through one of the brushes) and pin 15 to the blue wire(L) and also to the 3 diodes output from the stator.please confirm.

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Yes, I think that sounds correct. :)

  • Author

Now they installed a used alternator as a replacement which is Bosch 70A 14V

047903015Q

It is all fine now.

Thanks for your help.

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