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How do you fix the trunk light of a VW 2000 Jetta that periodically works?
Wiki User
∙ 14y ago
Your trunk light switch needs to be replaced. The switch is located in the latch assembly of the trunk lid. You do not need to replace the whole latch, just take it apart and take out the small black switch that has a metal lever coming off at about a 30 degree angle. You can buy a new one from the dealer for like $20 and fix the problem yourself. Do a search at VWvortex.com for more info.
Details of my problem:
When the metal lever is moved it comes in contact with the switch. The switch is normally closed, which means when nothing is pushing the switch, it completes the trunk light circuit and allows 12V to power the trunk light. When the trunk is closed, the switch is pressed and the circuit is open (light off). Mine was bad (tested with a multimeter) and had a resistance of 500 Ohms or so rather than a short when depressed (closed). This was stealing the voltage that was intended for the trunk light, so that the light only received 3-6V. A new switch had a zero resistance (short) across the terminals and operated properly (12V to the light).
Aside:
You may want to upgrade the trunk light while your at it. Grab some neon looking Cold Cathode light bars used for computer cases (run on 12V). I used white. I zip tied the light bars to the top of the inner trunck area, then and wired them to my stock light bulb socket. These things are much brighter and in a better position than the stock bulb, and can be had for $10 at Frys.
Wiki User
∙ 14y ago
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