Headlight Switch, What Connects where.... |
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Headlight Switch, What Connects where.... |
wysri9 |
Jun 11 2020, 07:18 AM
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#1
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Member Group: Members Posts: 199 Joined: 23-August 13 From: Aberdeen, Scotland Member No.: 16,291 Region Association: England |
Does anyone have an annotated picture of the connections on the headlight switch. I am nearly there with understanding it, but cannot seem to get the Instrument light rheostat to work so wondering if I am testing the wrong connection....... (IMG:style_emoticons/default/WTF.gif) Any assistance appreciated! Its all custom wiring so the harness wire colours wont help me.....
My list as I understand so far is as follows:- K = Boot and licence plate 15=Power from ignition 30=power in to auxiliary lights and headlight motors 30b= power out to headlight motor 56= power to headlights 56K = power to headlight motors 57=Parking light indicator 58L = Left Park 58R= Right Park 58A = Instrument lights 58b= ?? Another way of asking the question is which connections do I need for power in, power out to sidelights/parking lights, power out to headlights and power out via rheostat to instrument lights?? I am using relays for the headlights to limit current through the switch so its just pilot current. Thanks in advance.....!! |
JeffBowlsby |
Jun 11 2020, 07:25 AM
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#2
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914 Wiring Harnesses Group: Members Posts: 8,510 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
Help us help you. What year 914 and how many poles does your switch have, 10 or 11?
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bdstone914 |
Jun 11 2020, 07:55 AM
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#3
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bdstone914 Group: Members Posts: 4,522 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
The rheostat can fail. If my memory serves me correctly you can jump 58a to 58b and the instrument light will be on full bright.
Are you trying to also control the side marker light brightness? |
76-914 |
Jun 11 2020, 11:36 AM
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#4
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,502 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California |
If it is broken it is easy to spot the broken spring in the rear. (IMG:style_emoticons/default/beerchug.gif)
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barefoot |
Jun 11 2020, 12:43 PM
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#5
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Senior Member Group: Members Posts: 1,274 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States |
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wysri9 |
Jun 12 2020, 12:16 AM
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#6
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Member Group: Members Posts: 199 Joined: 23-August 13 From: Aberdeen, Scotland Member No.: 16,291 Region Association: England |
Thanks for the responses guys. Its an 11 pole switch and no I do not want a light display from my parking lights! On and off will do fie for those (IMG:style_emoticons/default/smile.gif)
The current flow diagram I have shows a connection via the rheostat between 58a and b which had me wondering whether I just need to jump those two...I am far from clear on that though...... |
JeffBowlsby |
Jun 12 2020, 08:17 AM
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#7
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914 Wiring Harnesses Group: Members Posts: 8,510 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
Attached image(s) |
wysri9 |
Jun 12 2020, 08:36 AM
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#8
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Member Group: Members Posts: 199 Joined: 23-August 13 From: Aberdeen, Scotland Member No.: 16,291 Region Association: England |
Jeff Thats a real help if I was plugging back in to the old loom, but I decided a long time ago to ditch the old loom and make my own......so its the function of each connection that is now important....... Here are pics of the lovely old switch - amazing what 2 minutes with some chrome cleaner can do (and yes I know nobody will ever see it....) |
wysri9 |
Jun 12 2020, 09:11 AM
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#9
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Member Group: Members Posts: 199 Joined: 23-August 13 From: Aberdeen, Scotland Member No.: 16,291 Region Association: England |
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wysri9 |
Jun 12 2020, 09:12 AM
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#10
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Member Group: Members Posts: 199 Joined: 23-August 13 From: Aberdeen, Scotland Member No.: 16,291 Region Association: England |
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JeffBowlsby |
Jun 12 2020, 09:41 AM
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#11
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914 Wiring Harnesses Group: Members Posts: 8,510 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
Its a bigger help than you think. Chase the wires/colors on the factory schematic and see where they end up.
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wysri9 |
Jun 12 2020, 01:11 PM
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#12
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Member Group: Members Posts: 199 Joined: 23-August 13 From: Aberdeen, Scotland Member No.: 16,291 Region Association: England |
Jeff
You are teasing me ..and testing me which is good! Is my initial list correct? I have studied the current flow diagram but am still left a bit mystified....Probaly because I am a mechanical not an electrical engineer... (IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/biggrin.gif) This is my current (pun unintended....) understanding K = Boot and licence plate 15=Power from ignition 30=power in to auxiliary lights and headlight motors 30b= power out to headlight motor 56= power to headlights 56K = power to headlight motors 57=Parking light indicator 58L = Left Park 58R= Right Park 58A = Instrument lights 58b= ?? |
wysri9 |
Jun 19 2020, 12:03 AM
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#13
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Member Group: Members Posts: 199 Joined: 23-August 13 From: Aberdeen, Scotland Member No.: 16,291 Region Association: England |
OK guys - more study of current flow diagrams and testing of the headlight switch suggests I need to do the following in my GT style build with headlight motor delete and no parking lights.
Terminal 30 - Power in for sidelights and instrument lights Terminal 58L/58R power out to sidelights - use one or other Terminal 15 - power in for headlights Terminal 56 - Power out to headlights Terminal 58a - Power out to instrument lights Terminal K-terminal 58b bridged Terminals 30b, 56k and 57 not used Both inputs to 15 and 30 will be fused. It would be great if somebody could validate that????? Thanks in advance. |
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