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LIGHTS AND CLUSTER AND WIPERS NOT WORKING

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LIGHTS AND CLUSTER AND WIPERS NOT WORKING

Postby skipoman » Sun Nov 01, 2020 6:30 pm

Did a short journey and first it said rear brake bulb blown. Stopped and checked all ok. Then after another short journey back ignition light came on. Then 15 mins later turned off engine. Went to do another small journey hour later pulled away from house all working ok 2 minutes later ignition light followed but wipers going slow and eventually nothing along with indicators and light cluster to point where when I braked didnt have enough power to light the bulbs and cluster went out. Managed to get home . Starts ok but im assuming its the battery nearest the front of seat. Put a battery charger on second battery and flat.Is it battery thats had it? high top rwd 2.2 2014. mk8. Any help appreciated
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Re: LIGHTS AND CLUSTER AND WIPERS NOT WORKING

Postby Altransit » Sun Nov 01, 2020 6:58 pm

Aux battery has had it and needs replacing. You might want to check that the alternator is charging the batteries properly as well :idea:
1994 Mk4 SWB 115 Minibus 70ps Di (R.I.P.)
1997 Mk5 SWB 115 Minibus 70ps Di (Gone, but not forgotten!)
2004 Mk6 SWB T280 Medium Roof 85PS 2.0 TDDi - Vantunered (Also gone)
2008 Mk7 SWB T280 Medium Roof 85PS 2.2 TDCi - Also Vantunered
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Re: LIGHTS AND CLUSTER AND WIPERS NOT WORKING

Postby skipoman » Sun Nov 01, 2020 7:42 pm

Thank you. Yes ordered new auxillary battery. On the main battery I put a multi meter on it and started up. Yes getting a good charge so assume alternator ok. Thanks again :P
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Re: LIGHTS AND CLUSTER AND WIPERS NOT WORKING

Postby KevofCov » Sun Nov 01, 2020 10:01 pm

Sounds straight forward but let us know how you get on.
Mine are both six years old and 272000 miles......
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Re: LIGHTS AND CLUSTER AND WIPERS NOT WORKING

Postby Altransit » Sun Nov 01, 2020 11:44 pm

KevofCov wrote: Mine are both six years old and 272000 miles......

Maybe the mileage that you do keeps the batteries topped up adequately, and whilst you're driving, you're not draining the aux battery by opening and closing the doors, which a lot of tradesmen are doing all day.
Even just unlocking the van powers up many circuits which don't then shut down for half an hour after re-locking.

I have to charge mine once a month, as I'm just not doing enough long runs to keep them charged properly.
1994 Mk4 SWB 115 Minibus 70ps Di (R.I.P.)
1997 Mk5 SWB 115 Minibus 70ps Di (Gone, but not forgotten!)
2004 Mk6 SWB T280 Medium Roof 85PS 2.0 TDDi - Vantunered (Also gone)
2008 Mk7 SWB T280 Medium Roof 85PS 2.2 TDCi - Also Vantunered
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Re: LIGHTS AND CLUSTER AND WIPERS NOT WORKING

Postby KevofCov » Mon Nov 02, 2020 9:18 pm

Altransit wrote:
KevofCov wrote: Mine are both six years old and 272000 miles......

Maybe the mileage that you do keeps the batteries topped up adequately, and whilst you're driving, you're not draining the aux battery by opening and closing the doors, which a lot of tradesmen are doing all day.
Even just unlocking the van powers up many circuits which don't then shut down for half an hour after re-locking.

I have to charge mine once a month, as I'm just not doing enough long runs to keep them charged properly.



Good point well put
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Re: LIGHTS AND CLUSTER AND WIPERS NOT WORKING

Postby skipoman » Wed Nov 04, 2020 3:35 pm

After installing new auxillary battery I seem to be getting somewhere. Its not battery. When engine is running the auxillary battery is not getting charged but main battery is. Now put it down to the relay under seat part number DK3T10B728AA. Any thoughts?
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Re: LIGHTS AND CLUSTER AND WIPERS NOT WORKING

Postby Altransit » Wed Nov 04, 2020 5:22 pm

There's a fuse that powers the coil of that relay, but alas, I have no idea where it is on the Mk8 :(
1994 Mk4 SWB 115 Minibus 70ps Di (R.I.P.)
1997 Mk5 SWB 115 Minibus 70ps Di (Gone, but not forgotten!)
2004 Mk6 SWB T280 Medium Roof 85PS 2.0 TDDi - Vantunered (Also gone)
2008 Mk7 SWB T280 Medium Roof 85PS 2.2 TDCi - Also Vantunered
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Re: LIGHTS AND CLUSTER AND WIPERS NOT WORKING

Postby Altransit » Wed Nov 04, 2020 5:28 pm

This is the Mk7 fuse box, it's the little 5 amp fuse

Relay Coil Fuse Box.png
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1994 Mk4 SWB 115 Minibus 70ps Di (R.I.P.)
1997 Mk5 SWB 115 Minibus 70ps Di (Gone, but not forgotten!)
2004 Mk6 SWB T280 Medium Roof 85PS 2.0 TDDi - Vantunered (Also gone)
2008 Mk7 SWB T280 Medium Roof 85PS 2.2 TDCi - Also Vantunered
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Altransit
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Re: LIGHTS AND CLUSTER AND WIPERS NOT WORKING

Postby skipoman » Wed Nov 04, 2020 7:12 pm

Hmmmmm unless someone else knows where the fuse is on a mk8?
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Re: LIGHTS AND CLUSTER AND WIPERS NOT WORKING

Postby skipoman » Thu Nov 05, 2020 7:10 pm

All fuses checked and ok. The module that controls the auxilary battery replaced....still no charge to aux battery just the starter battery. Could it be that the alternator or ecu is telling system not to charge battery and I need to put 2 new batteries in van?
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Re: LIGHTS AND CLUSTER AND WIPERS NOT WORKING

Postby Altransit » Thu Nov 05, 2020 10:18 pm

skipoman wrote:All fuses checked and ok.

All of them :?: You know that there are at least 4 fuse boxes in your Mk8 :?:

If, when you turn the ignition key, you don't hear the 'clunk' from the splitter relay, then the batteries are not being connected, and that's why the aux battery isn't charging. If it's not working, either the relay is faulty, or it's not being powered 'on' :)
1994 Mk4 SWB 115 Minibus 70ps Di (R.I.P.)
1997 Mk5 SWB 115 Minibus 70ps Di (Gone, but not forgotten!)
2004 Mk6 SWB T280 Medium Roof 85PS 2.0 TDDi - Vantunered (Also gone)
2008 Mk7 SWB T280 Medium Roof 85PS 2.2 TDCi - Also Vantunered
User avatar
Altransit
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Re: LIGHTS AND CLUSTER AND WIPERS NOT WORKING

Postby skipoman » Fri Nov 06, 2020 12:50 pm

Ive checked fuses under bonnet on right. Checked fuses below steering ...where else? Got lights staying on (front and back) and dash not lighting up at all and that is with battery fully charged over night. Could I have an ECU issue? If so who is capable of replacing it for me? Im really stuck :(
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Re: LIGHTS AND CLUSTER AND WIPERS NOT WORKING

Postby skipoman » Wed Nov 11, 2020 2:37 pm

I have had a electrician round that tells me its the BCM thats is not telling dual battery to charge and lights staying on and various other faults. Question is if i get one with same code (BK2T 14B476 AP) is it just a plug in and go?
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