Charging Light on S2 not lighting up.
Charging Light on S2 not lighting up.
Author
Discussion

Squelchy

Original Poster:

3 posts

Sunday 8th March
quotequote all
Hi Guys
Hoping someone may be able to advise, give me a pointer on what to do regarding my s2.
Just started the car to get out of the garage to prepare for the up coming summer and noticed the alternator charging light not coming on, always has done the usual before , stays on until 2k revs then goes out. Also noticed the volt meter is registering a low charge, even after blipping the revs over 2K.
Tried looking at the instrument bulb cluster, but have made this worse now, as the full headlight bulb indicator has now stopped working also!
Any ideas on what is causing this charging issue, as if a bulb in the cluster I cant see how you change that and not sure that would cause the volt meter to show low charging.
Any help would be greatly appreciated.
Thanks!!!

Ps
Any good tvr electircal mechanic recommendations in Suffolk?

Sleigh

1 posts

172 months

Tuesday 10th March
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I've just purchased a S2 i think that's how they're meant to work, light remains illuminated and needle doesn't move until 2k revs attained.
2 good auto electricians around Stowmarket if that helps

Squelchy

Original Poster:

3 posts

Wednesday 11th March
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Thanks for the reply, that is how my S2 used to be, but unfortunately the battery light does not come on at all when starting up, so charging voltage does not get above 11V.
Can you let me know your recommendations for auto electricians in Stowmarket?
Best Regards!

h271mbk

43 posts

122 months

Sunday 15th March
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Do you have a volt meter? Less than £10 at Screwfix
You can check the alternator is working by measuring the battery voltage when running/not running and also the alternator output. It’ll be higher when charging as you would expect.
Check all your battery and alternator connections.
If all good you’ll need to trace the wiring back to the dash testing with a volt meter as you go.
It could just be the charge light bulb but start with the easy to get to stuff first
N

NZDave

92 posts

273 months

Tuesday 17th March
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Generally the alternator will be energised via the ignition light. Sounds like there is no connection to the alternator via the light or the alternator has failed. You need to check the bulb. If it looks to be okay check there is 12V to the bulb and then check all the wiring to the alternator. If there is 12V to the alternator on the fine wire (not the main power wire) it will be the alternator. I have come across a similar problem a couple of times (not on TVRs) and both times it was actually the alternator itself.
Cheers
Dave

Squelchy

Original Poster:

3 posts

Yesterday (14:42)
quotequote all
Guys
Sorry for the delay in replying, thanks for all the advice.... looks like a weekend of testing the wiring for me!
Cheers
Dan