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Old 09-23-2020, 12:19 PM   #4
VetteVet
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Join Date: Jan 2005
Location: Kalamazoo, Michigan
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Re: Do bulb sockets go bad (short out)?

Quote:
Originally Posted by bigoilman View Post
Truck sat a while during the LS swap. Now I have all my lights except taillights and marker lights. Using the power probe on the rear section of the harness (disconnected from the main) I get a dead short on the taillight (brown) wire. I see no damage anywhere (truck is very clean). Just asking before I start cutting and replacing.
If you are reading (testing) for continuity between the brown wire and ground for a short, you must remove all the bulbs in the tailight circuit or you will read through the bulb filaments and get a small ohm reading giving you a false positive between the brown wire and ground. I don't know what the resistance of all the bulbs will be but if it is less than 50 ohms I would suspect a short.
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