logo elektroda
logo elektroda
X
logo elektroda
Advanced Search
logo elektroda

Golf 4 1999 1.6sr: Warm Alternator Cable, Dimming Lights, ESP & ABS Warning After Electrical Use

grze21 12651 16
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
Reply | New topic
  • #1 16722721
    grze21
    Level 13  
    Hello. I've been struggling with it for some time and can't find the reason. I searched the forum but found nothing similar. Well, at the very beginning, I noticed that the cable that runs from the alternator to the main fuse box gets very warm, which should not be the case. There was also that the lights dim and the Esp and ABS lights up after closing the el. windows or switching on high beam lights. No battery light is on and I will add that after turning off the engine and restarting it is fine. What could it be?
  • ADVERTISEMENT
  • #2 16722746
    ptr92
    Level 19  
    Check the voltage drop on this wire between the alternator output and the input to the safety box.
  • #3 16722813
    grze21
    Level 13  
    When the lights started to dim, I measured the battery and showed 12.97V and 14.03V on the alternator terminal. After the engine is turned off and restarted, 14.09V on the battery and 14.18V on the alternator terminal
  • ADVERTISEMENT
  • #4 16722978
    Staszek49
    Level 35  
    Check, buddy, if the plus cables from the battery to the starter and alternator are of the required parameters, i.e. original. Are these connections secure and corrosion-free? Then check the connection of the negative terminal of the battery with ground, i.e. the car body, which may be corroded, especially in contact with the body. Examine the condition of the cable (thin blue) supplying the alternator, it tends to break and the alternator does not wake up. If these tests do not work either, check the belt tension and the diodes (each separately) in the alternator.
    The dimming of the lights may be related to the periodic undercharging of the battery, the reaction of the ABS system, airbags, lights and other "larger" receivers.
  • #5 16723004
    moto-kord
    Level 28  
    Check the connections in the fuse box on the battery (those plate fuses).
  • #6 16724688
    vogelek1
    Level 20  
    Connections on the mass and plus car should first be checked to exclude things
  • ADVERTISEMENT
  • #7 16724723
    grze21
    Level 13  
    I have checked all the cables and they are intact, in factory shirts. But there is one thing that put me on the trail, so I measured the voltage at the alternator terminal today and it showed 12.87V, it was similar to the battery terminal, but I caught the ground from the engine and charging started to show 14.24V, I grabbed the ground again from the negative terminal of the battery, charging 12.87V.
  • #8 16724822
    vogelek1
    Level 20  
    grze21 wrote:
    I have checked all the cables and they are intact, in factory shirts. But there is one thing that put me on the trail, so I measured the voltage at the alternator terminal today and it showed 12.87V, it was similar to the battery terminal, but I caught the ground from the engine and charging started to show 14.24V, I grabbed the ground again from the negative terminal of the battery, charging 12.87V.


    I bet on a poor transition of one of the masses to the car body

    check all the ends of all the masses and it will be hurray: "-)
  • #9 16724875
    grze21
    Level 13  
    I cleaned all the masses that are under the battery. Where else to look for them?
  • ADVERTISEMENT
  • #10 16726717
    vogelek1
    Level 20  
    I did not read, did you check the alternator?
  • #11 16727599
    carrot
    Moderator of Cars  
    Alternator brushes / slip rings probably running out and charging once and not
  • #12 16727651
    kortyleski
    Level 43  
    Weight between the hood and the engine.
  • #13 16727802
    andrzej20001
    Level 43  
    Golf 4 1999 1.6sr: Warm Alternator Cable, Dimming Lights, ESP & ABS Warning After Electrical Use
    fix this
  • #14 17364191
    mayer25
    Level 11  
    andrzej20001 wrote:
    I cleaned all the masses that are under the battery. Where else to look for them?


    kortyleski wrote:
    Weight between the hood and the engine.


    I may be wrong, but whether the weight from the body and the engine block are connected "together" to the base of the battery and from there it goes with a common cable to the negative battery terminal.

    I also have a separate question, not wanting to start a separate thread. Is there any breakdown of what are the cables at the box on the battery?

    The black on the left goes directly to the alternator. It is protected by a 110A strip fuse. What can the other two red cables be from (protected respectively 110A and 50A).


    Golf 4 1999 1.6sr: Warm Alternator Cable, Dimming Lights, ESP & ABS Warning After Electrical Use


    Someone was replacing the box visible in the photo with a "newer" type, which has a cable instead of this plate. So the newer version should theoretically be better. and more durable. It's always a cable, not a metal plate.

    Golf 4 1999 1.6sr: Warm Alternator Cable, Dimming Lights, ESP & ABS Warning After Electrical Use
  • #15 17364297
    ociz
    VIP Meritorious for electroda.pl  
    Weight on the gearbox. In this box on the battery, if they do not connect it under the same fuses, check that they do not heat up.
  • #16 17364340
    mayer25
    Level 11  
    Nothing is overheating for me (knock on). OK. I'm going to start cleaning all contacts from the power supply, battery clamp. I was temporarily thinking about replacing the box. Apparently there are often problems with the first type. This badge is so unprofessional. Although what is the box for cable problems, if the contact points are often tarnished, are the cables themselves in poor condition and they call for replacement.

    Coming back .. what are the other two cables I wrote about. I found a graphic according to which the first from the left is the alternator cable, which is easy to check organoleptically, the second - red (110A) - the interior of the car, the fourth - red (50A) - engine control. Can someone confirm to be sure?
  • #17 17365166
    moto-kord
    Level 28  
    Fuse 1
    30A radiator fan control unit
    Fuse 2
    ABS 30A
    Fuse 3
    30A ABS pump
    FL1 fuse
    Alternator
    (110A also used) 90A
    FL2 fuse
    Interior 110A
    FL3 fuse
    40A radiator fan control unit
    FL4 fuse
    50A engine management system
    FL5 fuse
    Coolant heater 50A
Reply | New topic
Report a violation of the law

Topic summary

The discussion revolves around a 1999 Golf 4 1.6SR experiencing issues with a warm alternator cable, dimming lights, and ESP & ABS warning lights activating after electrical use. The user notes that the alternator cable becomes excessively warm, and the lights dim when using electrical components like windows and high beams. Various responses suggest checking for voltage drops, ensuring secure and corrosion-free connections, and examining the alternator's condition, including brushes and slip rings. The importance of checking ground connections and the integrity of battery cables is emphasized, as well as the potential for undercharging the battery affecting the vehicle's electrical systems. The user also inquires about the wiring in the fuse box and the function of specific fuses related to the alternator and other components.
Summary generated by the language model.
ADVERTISEMENT