 Brake Light in Combo Gauge |
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| Mike Fitton |
 Sep 14 2025, 01:17 PM
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#1
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Senior Member  Group: Members Posts: 625 Joined: 13-May 11 From: Chicago Area Member No.: 13,069 Region Association: Upper MidWest 
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Ok I pulled my early combo gauge (dated '69) because only half of the indicator light was illuminating. I see 1 wire (red/white) that is not connected and I have an open bulb slot. Do I just need a single spade bulb sleeve to install and hook that loose wire to it?
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| 914Sixer |
Sep 14 2025, 01:48 PM
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#2
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914 Guru Group: Members Posts: 9,320 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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RED/WHITE is a 12v power lead.
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| Mike Fitton |
Sep 14 2025, 02:48 PM
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#3
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Senior Member Group: Members Posts: 625 Joined: 13-May 11 From: Chicago Area Member No.: 13,069 Region Association: Upper MidWest
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QUOTE(914Sixer @ Sep 14 2025, 11:48 AM)  RED/WHITE is a 12v power lead. So are you saying it is not for a 2nd bulb? By the way thx again for the screens for heat control unit already installed.  |
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| Montreal914 |
Sep 14 2025, 03:20 PM
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#4
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Senior Member Group: Members Posts: 1,961 Joined: 8-August 10 From: Claremont, CA Member No.: 12,023 Region Association: Southern California
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Out of topic, but this indicator light is split? (IMG:style_emoticons/default/idea.gif)
It means it could be used for two different warnings if one would want, one on the left one on the right? Could they be of different colors? Back to regular programming, sorry for hijack. |
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| Spoke |
Sep 14 2025, 06:51 PM
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#5
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Jerry Group: Members Posts: 7,271 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
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QUOTE(Montreal914 @ Sep 14 2025, 05:20 PM) One side for parking brake and the other for MC fault switch? If you don't find where the red/white QC connector goes, at least tape it up or heat shrink something on that exposed connector. Lots of metal to ground out behind the gauges. |
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| dtmehall |
Sep 14 2025, 07:15 PM
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#6
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Member Group: Members Posts: 207 Joined: 21-December 23 From: Farmington Hills, Michigan Member No.: 27,808 Region Association: Upper MidWest |
In my 73, the light extends all the way across. Maybe the PO did some mods??
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| Mike Fitton |
Sep 14 2025, 07:20 PM
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#7
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Senior Member Group: Members Posts: 625 Joined: 13-May 11 From: Chicago Area Member No.: 13,069 Region Association: Upper MidWest
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It's a red lens all the way across so I'm guessing I need another bulb, Yes?
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| Mike Fitton |
Sep 14 2025, 07:21 PM
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#8
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Senior Member Group: Members Posts: 625 Joined: 13-May 11 From: Chicago Area Member No.: 13,069 Region Association: Upper MidWest
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QUOTE(Spoke @ Sep 14 2025, 04:51 PM) QUOTE(Montreal914 @ Sep 14 2025, 05:20 PM) One side for parking brake and the other for MC fault switch? If you don't find where the red/white QC connector goes, at least tape it up or heat shrink something on that exposed connector. Lots of metal to ground out behind the gauges. Yes will re-tape the spade if I don't figure this out. It was taped when I removed it. |
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| Mike Fitton |
Oct 18 2025, 08:40 AM
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#9
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Senior Member Group: Members Posts: 625 Joined: 13-May 11 From: Chicago Area Member No.: 13,069 Region Association: Upper MidWest
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Ok put in a single spade bulb socket and connected the red/white wire so right side lights up as red but stays on even if hand brake is not engaged. Anyone else have an early gauge like this and can explain. Thx!
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| Superhawk996 |
Oct 18 2025, 11:02 AM
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#10
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914 Guru Group: Members Posts: 7,521 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch
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QUOTE(Mike Fitton @ Oct 18 2025, 10:40 AM) Ok put in a single spade bulb socket and connected the red/white wire so right side lights up as red but stays on even if hand brake is not engaged. Anyone else have an early gauge like this and can explain. Thx! Can’t use a single spade light The +12v red/white then grounds to the gauge case through the bulb and is on 100% of the time. You need a dual spade lamp just like what is already there on the other side - and of course you’d need to find a ground wire from either the park brake switch or the master cylinder switch to control it. As Montreal states . . . Has some neat potential to be used as an indicator for what ever you might want. |
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| Ron914 |
Oct 18 2025, 01:34 PM
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#11
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Member Group: Members Posts: 444 Joined: 19-April 22 From: Huntington Beach,Ca Member No.: 26,487 Region Association: Southern California
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May have tried this already but couldn't you just move the working bulb to the socket not hooked up and see if the other side of the display lights up .
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