[Solved] Renault Trafic 2 2009 Battery Charging Issue: Alternator, Fuse, Cables & 14.4V / 12.8V Voltage

hello I have a problem renault trafic 2 2009 r with charging the battery, while running out of battery I thought it was cold so it fell down, I replaced it with a new one but it turned out to be discharged. On the second day I thought that the alternator light was off, I fired on the battery it showed 14.4 Volts I warmed up the engine was still charging the battery I turned off I fired again 12.8 Volts I tried several times not charging, the alternator fuse is good at the heel on the fuse is. On the second day, again, I don't know if the indicator is damaged, I cleaned the power cables except for the one coming to the engine, the alternator has a plug with 2 cables

Hello .
If the charge indicator does not light, it may be difficult to start the alternator. Check the wires at the alternator (for example, the wires are not broken), I think it may be a traditional alternator with a regulator without COM. You need to specify how many pin the alternator power supply has (pin marking) , or specify the type of alternator, it will explain a lot.

The indicator will light up when it is 10V. Alternator rather to be repaired

Brushes may end and this symptom, check the regulator.

Bieda z nędzą wrote:

The rotor winding probably breaks, the rotor winding breaks in these valeo alternators.

It is not so much that it breaks, but the loose carcass inside breaks it.

If it has 110-120A

leon55 wrote:

On the second day I thought that the alternator light was off

Disconnect the ankle from the alternator and give ground to this cable, as the indicator light will come on (of course, the ignition is on, then alternator and have it repaired.

Thanks for the hints tomorrow evening I'll start unscrewing the plastics to get to the alternator

hello, the alternator has a cube with two orange and white cables, the orange voltage is one volt less than on the battery, while the white one is 0.5V. I shorted the cables to ground, but the battery indicator did not light, I took out the meter, maybe I will unscrew it tomorrow, unless it is possible to check without unscrewing the charging lamp counter.

Wait a minute, maybe after 50 posts you can fix it, maybe sooner the electrician will see?

In the end I got some time I pulled down the meter there, unfortunately the electronics itself is a led diode controlled by transistors. I checked the cable to the meter with the meter but there was no connection to the alternator, I started to review the installations. After unscrewing the front lamp from the driver below the fuse box, I found the connector where the cable from the meter came in. After a careful look, it turned out that the white cable towards the alternator for about 0.5 cm was green after it fell apart, I soldered, the charging lamp came on but not the stop lamp on the meter went off and the battery did not charge after firing after the cable was soldered off, the ignition lamp was not lit normally the stop lamp went off. Today I had to drive a car about 100km charging 14.5V-13.8V so differently the longer the less after re-firing. Maybe I'll turn the alternator on Saturday

hello I finally got some time it turned out that the regulator on the alternator was whacked after installing a new one, everything returned to normal. Thanks for the help