Romel

On Wednesday, February 24, 2016 at 10:57 AM, nutbolt said:

Yes I mean carbon brushes...thanks

22 minutes ago, nutbolt said:

Which carbon brass you are referring? Please 

This is to share also my experience recently. I had been on a trip from dubai to abu dhabi vice versa around 200kilometers when I stopped on the shoulder of the road to answer a phone call. When I am about to go suddenly my engine died. Checked everything is normal...only cranking and cranking. Tried to open one coil and put extra spark plug to check if there is spark but it was nothing. Friend opinion to check crank sensor found below the main pulley if it dirty or what. Only to find out that 2 wires to the sensor were damaged and touching each other. Separated the wires put tape on it. (Remember to mark how the crank sensor before removing because if it is in the right adjustment it will not work also). It works and I escaped from costly repair if brought to a shop. It is good ECU was not damaged too.

On Tuesday, February 16, 2016 at 10:39 AM, treks said:

Hi Romel,

This is strange, but charging system warning lights usually only comes on when the alternator is not generating power. In this case it sounds like the voltage regulator is not working at high RPM, but the warning light usually comes on at low RPM's, when the alternator is not spinning fast enough to generate the full charging current.

In most Mazda's, the regulation of charging voltages happens in the ECU. This means you cannot have the alternator tested on its own. You need to take the whole car to a competent workshop for testing.

The best thing to do would be to have the car checked for stored fault codes. Messing around with alternators on Mazdas is looking for trouble unless you know exactly what you are looking  for, since accidental short circuits during testing can destroy the ECU.

Guys thank you for your inputs... will it be possible also that the carbon brass is already worn out? 

Hi...I noticed when my RPM is high (before reaching the red color), the battery sign appears on the dash board? What is the meaning of it? Thank you...