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Rear fog light issue T25 Wagon.


jensobents
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Ok. No light in rear fog light. Bulb ok. Checked voltage with a multimeter and the reading say 5.7 volts. Where do i start here ? 

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Power is switched to the foglight via a relay under the dash. You should hear it clicking when you turn the light on and off.

Low voltage at the bulb indicates a bad contact somewhere in the feed or maybe a bad earth connection.

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Do you have a tow bar installed?

As a Towbar socket contains a switch to turn off the cars rear fog light when a trailer is attached and the switch can get stuck when the trailer is removed keeping the cars fog light switched off

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