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Old 12-11-2020, 05:26 PM   #1
vwblue1967
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Default 240 rear fog light wiring

93 244

I recently replaced the lenses and hardwired the tailights but and missing one light. Hardwiring did fix some issues but the purple/white wire for the passenger side fog light has no power.

From looking at a diagram, the power wire comes from the switch then breaks off to the purple (driver) and purple white (pass side).

Anyone know where the two wires come off the switch wire? Im guessing its a splitter connection but not sure where it is. Checking to see if anyone knows before i pull the rear seat out start digging in the dash. Thanks
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Old 12-11-2020, 10:23 PM   #2
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I believe there is a dedicated fuse and a relay for the rear fog.
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Old 12-12-2020, 01:09 PM   #3
philski o'flood
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'93 only had rear fog on the one side, you'll need to run a wire from tail light to the other
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Old 12-12-2020, 04:04 PM   #4
dl242gt
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To clarify, only the left side tail light has a working fog light on the 93 models.
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Old 12-12-2020, 06:13 PM   #5
vwblue1967
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Really? What was the purpose of that?

The wiring diagram shows the purple and white wire and its in the harness but def no power to it. Well at least i now know its not a broken connection anywhere. I did notice the reverse light wire connects to the drivers side but the rest seem to be separate.

Thanks for the info
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Old 12-12-2020, 06:33 PM   #6
philski o'flood
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it was both sides with fogs for a while and then they changed it to one side, probably so it wouldn't look like brake lights
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Old 12-13-2020, 07:27 AM   #7
c1800
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https://en.m.wikipedia.org/wiki/Automotive_lighting
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Old 12-14-2020, 02:43 PM   #8
Harry Tuttle
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^ That is packed with info. One highlight:

Quote:
Turn signals are required to blink on and off, or "flash", at a steady rate of between 60 and 120 blinks per minute (1–2 Hz).
International UN Regulations require that all turn signals flash in simultaneous phase;
US regulations permit side marker lights wired for side turn signal functionality to flash in opposite-phase.
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Old 12-16-2020, 07:23 PM   #9
dl242gt
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I wired my side markers to flash out of phase. That way they work as side markers and flashers.
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Old 12-16-2020, 11:51 PM   #10
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I followed your advice and did the same. Nice to know that it is legal, here in 'murca at least.
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