PDA

View Full Version : Battery light coming on



Junglist
19-05-2015, 18:07
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
19-05-2015, 18:13
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:agree:

michael tierney
19-05-2015, 21:43
not recommended...........alternator will have no voltage reference!!:(

R5MJH
19-05-2015, 23:01
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
20-05-2015, 11:28
Bad earth or possible failing battery/alternator.

Junglist
20-05-2015, 12:53
Thanks.
Does anyone have a diagram of the alternator with what wire goes to where. I'm suspecting dodgey wire.

tubbyG
20-05-2015, 13:16
http://www.rtoc.org/files/Technical%20Files/Wiring%20diagrams/WD135%20GENERAL%20FEED.JPG

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

Junglist
20-05-2015, 14:22
http://www.rtoc.org/files/Technical%20Files/Wiring%20diagrams/WD135%20GENERAL%20FEED.JPG

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

:agree: thanks

Junglist
20-05-2015, 14:25
Got one more simple lol ?

michael tierney
20-05-2015, 20:17
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
20-05-2015, 21:52
http://www.rtoc.org/boards/showthread.php?t=35214

Junglist
27-05-2015, 21:36
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
27-05-2015, 21:43
http://www.rtoc.org/boards/showthread.php?t=35214

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