Battery light coming on

[Junglist]

Hi all, what could cause the battery light to come on only when braking ,
the more electrics I have turned on the brighter the light.
Cheers.

[R5MJH]

Hi all, what could cause the battery light to come on only when braking ,
the more electrics I have turned on the brighter the light.
Cheers.

sounds like alternator dan

remove main battery earth while running if it cuts out then alternator is fecked

[michael tierney]

not recommended...........alternator will have no voltage reference!!

[R5MJH]

trade trick for old cars i wouldn't recommend this on a new car, but on old its fine, dont try it dan if ya worried boss

[Mr Raider]

Bad earth or possible failing battery/alternator.

[Junglist]

Thanks.
Does anyone have a diagram of the alternator with what wire goes to where. I'm suspecting dodgey wire.

[tubbyG]

https://www.rtoc.org/files/Technical%...RAL%20FEED.JPG

Have a look over this.. Has helped me in the past

[Junglist]

https://www.rtoc.org/files/Technical%...RAL%20FEED.JPG

Have a look over this.. Has helped me in the past

thanks

[Junglist]

Got one more simple lol ?

[michael tierney]

make sure ur connections are secure on the bat and on the back of the alt......put a voltmeter across the bat ,when u start the engine the voltage should go to about 13.5 volts and when revving ,about 14volts......when u put loads on ,the voltage should dip but will come back up to 14 when u rev it......its more than likely a regulator which u can buy if u have the make of the alt....
hope this helps.....

[Fordy]

https://www.rtoc.org/boards/showthread.php?t=35214

[Junglist]

make sure ur connections are secure on the bat and on the back of the alt......put a voltmeter across the bat ,when u start the engine the voltage should go to about 13.5 volts and when revving ,about 14volts......when u put loads on ,the voltage should dip but will come back up to 14 when u rev it......its more than likely a regulator which u can buy if u have the make of the alt....
hope this helps.....

Thanks.

[Junglist]

https://www.rtoc.org/boards/showthread.php?t=35214

good post.
Are the brush pack and diode pack 2 different things ?