 Back-up Lights Not working, Where is the Switch??? |
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| dagdal1967 |
  Jun 18 2003, 10:42 AM
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#1
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What are YOU looking at...  Group: Members Posts: 372 Joined: 13-March 03 From: Carrollton, Texas Member No.: 423  |
Hey.
I've finally got most of the kinks worked out of my car, but one is giving me problems. The backup lights aren't working. I've checked the bulbs and fuses and they're fine, so now I'm wondering if its the backup light switch. I don't really know where to look for the switch. Is it burried deep within the transmission or is it up near the Gear Shift in the linkage? Are there any other things I should check? (IMG:style_emoticons/default/sad.gif) Thanks in advance. Doug |
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Replies(1 - 6)
| Demick |
Jun 18 2003, 10:50 AM
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#2
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Ernie made me do it! Group: Benefactors Posts: 2,312 Joined: 6-February 03 From: Pleasanton, CA Member No.: 257  |
The switch is on the transmission on the left side right near where the shift linkage attaches on a side shift transmission. You will see 2 wires plugged into the switch (or in your case, maybe they are not plugged in and that might be your problem). I think the switches are pretty reliable, but it could be the switch, or it could be the plunger that pushes the switch from the inside. I believe you can remove the switch without draining the tranny. Take out the switch, make sure there is a plunger behind it. Test the switch. Should be able to find the problem there somewhere.
Demick '74 2.0 |
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| Porsche Rescue |
Jun 18 2003, 06:02 PM
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#3
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Saving and Enjoying Old Porsches Group: Members Posts: 2,978 Joined: 31-December 02 From: Bend, Oregon Member No.: 64 Region Association: None |
A quick switch test: unplug the two wires to the switch, ignition on, touch them together and see if lights turn on. If so, switch is the problem. If no lights, use test lamp or meter to determine in you have voltage in one of the wires. If not, problem is before the switch. If you have juice at the switch, problem is after switch (wiring, bulbs, bulb socket contacts).
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| mightyohm |
Jun 18 2003, 07:18 PM
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#4
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Advanced Member Group: Benefactors Posts: 2,277 Joined: 16-January 03 From: Seattle, WA Member No.: 162 Region Association: Pacific Northwest |
I think what usually happens is that the plunger wears on one end and gets shorter. Then it's not long enough to push in the switch anymore. At least that is what happened on my 914 and a friend's. A few bucks at your local Porsche dealer and you're all set.
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| dagdal1967 |
Jun 19 2003, 12:09 PM
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#5
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What are YOU looking at... Group: Members Posts: 372 Joined: 13-March 03 From: Carrollton, Texas Member No.: 423 |
Turns out that one of the wires under the rubber cover wasn't plugged into the switch at all.. (IMG:style_emoticons/default/headbang.gif)
After I plugged it back in and tested the lights again, (and replaced one of the bulbs) everything was fine!!!! (thanks Demick) Now, getting the rear springs replaced... Should be the final thing to get it to A1 condition... WOOHOOOO!!! (IMG:style_emoticons/default/clap56.gif) (IMG:style_emoticons/default/clap56.gif) Thanks Doug |
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| CptTripps |
May 13 2005, 07:01 AM
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#6
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:: Punch and Pie :: Group: Members Posts: 3,584 Joined: 26-December 04 From: Mentor, OH Member No.: 3,342 Region Association: Upper MidWest |
Ok, here's digging up a WAY old topic! But you just get yelled at if you start a new one and don't search first!
My backup light will only turn on if the clutch is all the way out. Which is pretty annoying, as I don't kow that I've ever not had a clutch pushed in a LITTLE BIT when backing up. Any thoughts? Is it my plunger, or is there an adjustment? |
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| gregrobbins |
May 13 2005, 09:07 AM
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#7
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Member: Team NARP Group: Members Posts: 1,515 Joined: 23-March 04 From: Arizona Member No.: 1,844 Region Association: Southwest Region |
"Partsman" is a member of this board and a Parts Manager at a Porsche dealership. Anyone needing dealer supplied stuff and not close to a local dealer can contact him. Friendly person and very knowledgeable. |
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