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matty D Member Since: 01 Dec 2013 Location: UK Posts: 54 |
I can't be of any help Im afraid, but I feel for you, electrical gremlins are a right PITA.
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19th Jan 2014 10:53 am |
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JST Member Since: 01 Nov 2011 Location: Lizant Posts: 1098 |
After a cold start, I think the voltage should be showing more than 13.78v (more like 14.4v) and if the alternator light is showing I would begin to suspect a dodgy diode in the alternator. These are 180amp alternators which are not cheap so if the rest of the unit is fine a repair would be OK. I think a competent auto electrician needs to see it to give a definite diagnosis.
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19th Jan 2014 11:09 am |
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Hannafop Member Since: 29 Jan 2012 Location: East Grinstead Posts: 22 |
Thanks John. Someone else had mentioned the diode as a possible issue. I agree on the heated screen as in the past it was the right side working and not the left. I'm still concerned that it's coming on from start up without the heated screen button being pressed on though... |
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19th Jan 2014 11:27 am |
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JST Member Since: 01 Nov 2011 Location: Lizant Posts: 1098 |
Sorry, I didn't read your post on the screen properly. If it comes on without the switch being on there is a problem. Take out the fuses for the screen and the heated seats and see if this makes any difference to the voltage. The screen drags a lot of power from the battery. I would check the relay for the heated screen as it looks like it has stuck on. John
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19th Jan 2014 12:58 pm |
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Hannafop Member Since: 29 Jan 2012 Location: East Grinstead Posts: 22 |
Thanks John. I can remove the fuses and check the fuse - good idea. Not sure how to check the relay. Will advise the out come to the voltage test asap.... |
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19th Jan 2014 1:05 pm |
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Hannafop Member Since: 29 Jan 2012 Location: East Grinstead Posts: 22 |
Sorry that should read re-check the voltage..... |
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19th Jan 2014 1:05 pm |
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Hannafop Member Since: 29 Jan 2012 Location: East Grinstead Posts: 22 |
Hi John. OK I have the following:
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19th Jan 2014 1:37 pm |
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pab Member Since: 28 Aug 2012 Location: Now in Mid-Wales Posts: 2007 |
Others have had problems with the battery earth connection where it attaches to the car body. This can become corroded and cause various electrical problems. An easy fix is to fit an additional earth cable between the battery and one of the bolts attaching the starter motor. A search should find several threads on the subject. |
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19th Jan 2014 2:14 pm |
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wizking Member Since: 18 Mar 2010 Location: Around Posts: 1848 |
As John has said, the heated screen is very draining and if it is on continuously, the charging system (this puts the battery light on) may not be able to put sufficient charge into the battery to overcome the drain. You could remove the heated screen fuses, do a hard reset (battery terminals off and touch together) then leave the fuses out and see if the battery light comes on anymore (and if the heated seats work again). Then you can test the heated screen sides separately along with the relays. |
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19th Jan 2014 2:21 pm |
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Hannafop Member Since: 29 Jan 2012 Location: East Grinstead Posts: 22 |
Thanks Wizking. Could it still be this even though there is no difference in voltages with or without the heated screen (HS) fuses in? I would have thought there we definitely be a difference if the HS was causing this? I will try this anyway as it's a pretty simple action to take. Appreciate the feedback. |
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19th Jan 2014 2:29 pm |
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Hannafop Member Since: 29 Jan 2012 Location: East Grinstead Posts: 22 |
Hi Wizking. have done a hard rest with fuses for heated screen out but light still comes on and heated seats still not working. |
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19th Jan 2014 3:32 pm |
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wizking Member Since: 18 Mar 2010 Location: Around Posts: 1848 |
Found this, not the same but may be worth a look;
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19th Jan 2014 3:46 pm |
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Hannafop Member Since: 29 Jan 2012 Location: East Grinstead Posts: 22 |
Thanks Wizking. I'd seen the second thread but not the first. Appreciate it. |
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19th Jan 2014 4:44 pm |
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Billsy Member Since: 09 Dec 2013 Location: Mid Sussex Posts: 180 |
Is it definitely the heated screen sticking on one side or are the blowers heating on one side only?
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19th Jan 2014 8:13 pm |
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