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wiring relays switches and lighting.

Old 01-20-2017, 10:43 PM
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Default wiring relays switches and lighting.

99 xj 185,000 up country: RE 3.5 31s, stock electronics.

my jeep was equipped with fogs from the factory. I have an after market bumper and took the broken fog lamps off years ago while tucking the plugs into the grill area.

I am wanting to add a putco /wiring harness for the headlights. Currently i have been testing the fog wiring with a test light. I started by grounding the test light to the battery and tested the fog plugs by the bumper, neither lit up. I then tested all of the fuses in the PDC because i cant find any info on which ones are for fogs. two fuses did not light up. upon this i pulled the dash cover and removed the fog switch. Testing the fog lead to the switch i have light. I go back to the PDC fuses with the switch removed and now all of the fuses light up the tester.

I pulled the relay and tested it with alligator clips on the battery positive and negative to the relay. the relay clicked. I then left the power hooked up and added clips from the multimeter set to ohm on 20. the meter shows 1. so if ive tested it correctly its bad i think.

Questions:

1) how do i test the rocker fog switch itself?

2) what Fuses in the pdc go to the fogs. there are no numbers or diagrams ive seen that represent this. the pdc cover labels relays only, and what is the fog Drl vs just the fog relay?

3) As ive said i would like to add a head light harness, is there any option that allows me to run the fogs from the factory switch independently from the head lights?
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Old 01-21-2017, 08:03 PM
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Anyone help please?
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Old 01-22-2017, 12:39 PM
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Testing with key in run position ? Fuse on inside by passengers foot.seems no 3 powers fogs.
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Old 01-22-2017, 12:43 PM
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yes i have tried the key in run position. if i pull the relays could the stock switch still be used to trigger a new wiring harness with its own relay?
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Old 01-22-2017, 12:55 PM
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Old 01-22-2017, 01:05 PM
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I have and I know there's a million great threads on fogs but none have the answers I'm looking for.

the PDC has two relays I only have the regular fog. Is this all that is needed other than a new switch?

if the relay is pulled is it now an open circuit with no way for power to reach the fogs.

thank you very much for your help
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Old 01-24-2017, 05:34 AM
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If you eliminating factory setup thats all you need yes.
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Old 01-24-2017, 11:56 AM
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I want to use the factory switch but add a separate harness for the fogs so they can be turned on any time. Not just with headlights, for instance if the headlights went out i want to use this factory fog to power auxiliary lights.

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Old 01-24-2017, 01:18 PM
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Gotta locate wiring diag for oem switch then wire accordingly.
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Old 01-24-2017, 01:21 PM
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Old 01-24-2017, 02:26 PM
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Where is the junction box located. If I'm looking at this right I just splice the ground and power from the switch?
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Old 01-27-2017, 04:12 PM
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Default headlight harness in

i put the octane headlight harness in today and wow! i pulled the fog relay to make the highs and lows switch with out cycling the headlight switch.

Now, Is the stock fog switch useless for a new fog wiring harness with its own relays?
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