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pugracer



Member Since: 18 Jun 2016
Location: NT
Posts: 4
Hong Kong 
Issue with Heated Rear Window and Headlamp
Hi everyone! I'm a new bee here! Smile

I acquired a '14 Defender 90 about 6 months ago and am loving it! Thumbs Up Thumbs Up

A weird problem occurred a few days ago. The heated rear window switch and the headlamp switch seems to have connected to each other. If I turn on the head lamp, the heated rear window turns on together; and, vice versa.

I have looked at the electric wiring diagram. Honestly, I'm not good at it and cannot figure where where may be the short circuit. Have you seen similar problem? Do you have any hints where I may start looking?

Thanks much!
Post #541198 18th Jun 2016 8:57am
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mse



Member Since: 06 Apr 2008
Location: UK
Posts: 5024
United Kingdom 2016 Defender 110 Puma 2.2 XS CSW Scotia Grey
The most simple thing to check would be for an earth issue Mike
Post #541239 18th Jun 2016 12:51pm
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Wild Card 90



Member Since: 03 Dec 2014
Location: Gerlingen
Posts: 1060
England 2012 Defender 90 Puma 2.2 SW Indus Silver
Welcome to D2net. Strange issue you have there. Not heard of thet one before.

Is it really the headlamps that have become "connected" to the HRW, or is it the sidelights? If it is the sidelights, the most obvious place to look is the heater rear window switch, as they are connected through the switch illumination. Pull it out and check the connector, and for any signs of having got too hot. As mse says, a bad earth is the most common cause of stuff like this. Anything been modified on the vehicle recently? 1998 Tdi 90 SW,
2008 Td4 90 SW,
2012 2.2 90 SW,
2" raised Trailmaster/Terrafirma
Heavy Track Raids, 255 MTīs,
Recaro CSīs, anorak, wellingtons
Post #541249 18th Jun 2016 1:32pm
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pugracer



Member Since: 18 Jun 2016
Location: NT
Posts: 4
Hong Kong 
Thanks guys!

You are right, it is the sidelights actually. Let me look into the HRW switch.

The car hasn't done any mod recently. I have light bar put on a while ago with illuminated switches installed above the console. Maybe that's related too?
Post #541405 19th Jun 2016 3:24am
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pugracer



Member Since: 18 Jun 2016
Location: NT
Posts: 4
Hong Kong 
Somehow the problem fixed itself before I could find a time to trace the wires!

Confused Confused Laughing
Post #546120 5th Jul 2016 2:52am
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