 Electrical Challenges |
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| stickyfingers |
 Feb 25 2021, 02:47 PM
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#1
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Member  Group: Members Posts: 168 Joined: 19-February 21 From: Toronto Member No.: 25,223 Region Association: Canada  |
Hi guys. 1 more thing to run by everyone. Can someone identify the following wires? What do they do? They are just sitting exposed.
The black wire comes from the left side of the rear lights (when you are looking from the back of the car). The other white/red wire is from the right side. I am trying to fix another issue. One of the license plate lights is not working. The other one is fine. I've checked with the voltmeter and there is no juice coming to the light. I even inserted a new bulb just to be sure. I guess I need to have a beer and start tracing the wires back to see but hoping someone has seen this issue before.   Thank you! |
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Replies(1 - 2)
| Tom_T |
Feb 25 2021, 03:02 PM
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#2
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TMI.... Group: Members Posts: 8,318 Joined: 19-March 09 From: Orange, CA Member No.: 10,181 Region Association: Southern California 
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Look at the link I gave you to Jeff Bowlsby's 914 wiring harness website on your knob post - he has wiring diagrams linked at the bottom.
The trunk one looks like it may be added in by a PO - & maybe for a rear trunk remote release used when they add a center reflector between the taillights. I just saw that they're both in the rear trunk - so my guess is trunk lock solenoid or maybe a 3rd brake light, or rear fog light, or ???? (IMG:style_emoticons/default/confused24.gif) You'll need to trace them both back to the splices to see what they're hooked up with, then figure out what add-on use may apply. Good Luck! (IMG:style_emoticons/default/beerchug.gif) Tom /////// |
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| stickyfingers |
Feb 25 2021, 05:43 PM
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#3
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Member Group: Members Posts: 168 Joined: 19-February 21 From: Toronto Member No.: 25,223 Region Association: Canada |
QUOTE(Tom_T @ Feb 25 2021, 04:02 PM)  Look at the link I gave you to Jeff Bowlsby's 914 wiring harness website on your knob post - he has wiring diagrams linked at the bottom. The trunk one looks like it may be added in by a PO - & maybe for a rear trunk remote release used when they add a center reflector between the taillights. I just saw that they're both in the rear trunk - so my guess is trunk lock solenoid or maybe a 3rd brake light, or rear fog light, or ???? (IMG:style_emoticons/default/confused24.gif) You'll need to trace them both back to the splices to see what they're hooked up with, then figure out what add-on use may apply. Good Luck! (IMG:style_emoticons/default/beerchug.gif) Tom /////// Thanks Tom. The red/white wire has 12v coming to it. The black wire does not have any voltage so it may be a ground wire or something. You could be right that the PO ma have used it for something. As for the license plate lights I figured it out. The PO had the wires all wrong. Corrected them and both lights are operational now. Last thing to figure out is the (G) Generator light on the dash. Ordered a new voltage regulator so hopefully that fixes it but going to take this to a mechanic to get it safety'd and maybe he can run some diagnostics on it to make sure the alternator is fine. Fingers crossed. Thank you for your help. |
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