Generation
Member
Registered: 7th Jul 09
Location: Essex
User status: Offline
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Started the corsa today (c20let) and on idle it cut out after about 3 mins. It alsodidn't have enough power to try and restart (barely and really slowly turned over) I read the fault codes, and got error 48, which is low battery voltage. So used mutli metre to check
Voltage and it was 12. Something, but didn't even have enough power to
Do up electric windows,
Ideas on issue?
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Generation
Member
Registered: 7th Jul 09
Location: Essex
User status: Offline
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Just to add,
Battery been on charge for about an hour, thought I'd use multimeter to check power.
It's now up to 13v but is dropping is as I look at it? This because I've just taken off charge? Or something else?
Let battery charge for about an hour, started car first time, it's only 11 volts odd with engine running, and that figure slowly dips. So must be a case of alternator not charging battery.
This is where I get lost, electricity wise,
[Edited on 11-12-2013 by Generation]
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DERV-POWER
Member
Registered: 13th Sep 09
Location: Greenfield, Flintshire
User status: Offline
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Check earth lead to alternator
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
User status: Offline
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If its dropping as you measure it, that may indicate the battery is knackered.
Alternator not charging would normally give you a battery light.
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Generation
Member
Registered: 7th Jul 09
Location: Essex
User status: Offline
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This is alternator earth
Speedo problems at the moment, so speedo itself it out, and needs quite bit of wiring to work. So can't check that
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carnuts
Member
Registered: 28th Aug 05
Location: Hertfordshire
User status: Offline
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im 99% if the clocks are out and you have no alternator light that will be the issue as its part of the circuit to alternator so it wont charge
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Generation
Member
Registered: 7th Jul 09
Location: Essex
User status: Offline
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Do you mean battery light? Corsa doesn't use an alternator light, not sarcasm. Just not sure if you're used to working on Corsa's or other cars
Cheets
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carnuts
Member
Registered: 28th Aug 05
Location: Hertfordshire
User status: Offline
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yeh sorry battery light
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daine
Premium Member
Registered: 28th Feb 07
Location: rossington
User status: Offline
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Do a volt check at 2k, and it should be putting out about 14.3..this is a healthy Alternator!!
If when the battery charged, disconnect both leads and do volt check, if you see it loosing
charge, there's dead cells in there some were and battery needs replacing.
If it hold charge for a short period of time, you then have a drain some were on the car!
this is when I start to check for bad earths and shorts. 
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Generation
Member
Registered: 7th Jul 09
Location: Essex
User status: Offline
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quote:
Originally posted by carnuts
im 99% if the clocks are out and you have no alternator light that will be the issue as its part of the circuit to alternator so it wont charge
This fixed it!!!
Battery being charged now! Thanks to everybody for ideas
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carnuts
Member
Registered: 28th Aug 05
Location: Hertfordshire
User status: Offline
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Glad it's sorted
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