 911 Fog Light Switch for Front & Rear lights, Need help wiring…See my labeled diagram |
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| jim_hoyland |
 Jan 13 2026, 12:57 PM
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#1
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Get that VIN ?  Group: Members Posts: 9,988 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California 
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I have the dual fog light switch for front and rear fog lights.
Part # 911.613.147.00 How does it get wired ? @Spoke Attached image(s)    
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| Spoke |
Jan 13 2026, 11:02 PM
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#2
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Jerry Group: Members Posts: 7,307 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
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I searched for that p/n for a schematic of it or a layout or pinout. Didn't find much. Maybe the schematic from the vehicle this was used in?
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| JeffBowlsby |
Jan 13 2026, 11:31 PM
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#3
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914 Wiring Harnesses & Beekeeper Group: Members Posts: 9,163 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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Easiest to simply check true continuity of each of the connecting poles (circuits) relative to each position of the switch. Ohmmeter with a buzzer is the tool of choice.
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| jim_hoyland |
Jan 16 2026, 02:19 PM
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#4
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Get that VIN ? Group: Members Posts: 9,988 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California
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So far I have:
31 = ground 15 = keyed battery power 58 = light (s) Still search to learn about I, I, III Attached image(s) 
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| cholland_ |
Jan 16 2026, 02:54 PM
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#5
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Member Group: Members Posts: 73 Joined: 11-October 06 From: Toronto, Ontario Member No.: 7,029 Region Association: None |
QUOTE(jim_hoyland @ Jan 16 2026, 03:19 PM)  So far I have: 31 = ground 15 = keyed battery power 58 = light (s) Still search to learn about I, I, III Do you have a multimeter? Set to ohms and put one lead on the 15 post. Then pull out the switch and see what opens at each setting. 58 and 31 should just for the switch's backlight. Every fog light switches I've seen will turn on the front fogs on the first click, then the front and rear on the second, but you'll have to verify this one yourself. I can't guess what position 3 would be for. |
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| jim_hoyland |
Jan 16 2026, 05:20 PM
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#6
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Get that VIN ? Group: Members Posts: 9,988 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California
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So far: Switch on: I connected 31 and I with a 9v battery; that turned on the orange switch light when switch is pulled out.
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| 914Wes |
Jan 16 2026, 09:10 PM
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#7
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Newbie Group: Members Posts: 49 Joined: 9-March 22 From: SO CAL Member No.: 26,388 Region Association: Southern California |
These are from the 911 factory manuals:
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