Clearance light trouble

Submitted: Friday, Feb 08, 2019 at 11:11
ThreadID: 137780 Views:1077 Replies:3 FollowUps:3
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Have Jayco Sterling 2011 and clearance and tail light glow now and then (maybe once a week) but the caravan is not connected to the car just on mains power. can anyone help with suggestions of where I could start looking for this problem?
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Reply By: Member - Barnray (NSW) - Friday, Feb 08, 2019 at 15:04

Friday, Feb 08, 2019 at 15:04
Check all the Earth connection. B
AnswerID: 623715

Reply By: RMD - Friday, Feb 08, 2019 at 15:16

Friday, Feb 08, 2019 at 15:16
Wayne
Is it ALL clearance and both tail lights which are affected? OR only one side?
DO as Barnray suggests and check all earthing points for integrity, however, the lighting for outside should be separate from lighting inside. Is any of it affected or isn't it obvious.
Do you have a breakaway system fitted?
Is the problem ONLY when the onboard charger is topping up the battery. If so, it may be related to the higher voltage applied when the charger is above float voltage. Heaven knows how Jayco has it wired.

If your onboard system charges the breakaway battery, it may have a fault in the trailer plug and feeding to the clearance ( brown wire) somewhere in or near the plug. Check the internal connections of the trailer plug for stray strands of wire or full of conductive dirt which gets wet sometimes and conducts where it shouldn't.
AnswerID: 623716

Follow Up By: Nomadic Navara - Friday, Feb 08, 2019 at 21:14

Friday, Feb 08, 2019 at 21:14
By law, the breakaway unit has to illuminate the break lights when it applies the brakes in a breakaway situation. There may be some fault developing in the breakaway unit.

The other thing that may be happening, sunlight at low angles making the lights look as they are illuminated.




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Follow Up By: Member - johnat - Saturday, Feb 09, 2019 at 20:24

Saturday, Feb 09, 2019 at 20:24
As RMD has said "Heaven knows how Jayco has it wired."
Adding to that, they will not release a wiring diagram, either. Their rationale is to avoid having people make "unauthorised" (and assumed unsafe) changes to the wiring.
What it does, though, is almost force you to use their service agents to do any changes to the wiring.
Health nuts are going to feel stupid someday, lying in the hospital, dying of nothing.

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Reply By: Wayne E2 - Thursday, Feb 28, 2019 at 07:43

Thursday, Feb 28, 2019 at 07:43
Well we found the problem with the clearance lights
It was the T,V, power cord causing a short when we put the T,V, on the lights would glow after about 10 minutes. new power cord fixed the problem hope it may help someone else
AnswerID: 624115

Follow Up By: Shaker - Thursday, Feb 28, 2019 at 08:07

Thursday, Feb 28, 2019 at 08:07
Thank you for posting the the outcome, I wish more did.
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