Question about 1993 Chevrolet S-10
Bed of vehicle was removed to change fuel pump and replaced. When everything was put back together, we ran across a very screwy issue. Brake lights work when the lights are not engaged, Reverse turns on the brake lights, the emergency flashers cause the flashers to engage, as well making the license plate lights to flash. But here's the really wierd thing, when I turn on the headlights, the lights on the rear just die.
The Fuses are good, the wiring harness is correct.
Help me please..
CHEVY S-10 TAIL LIGHTS PROBLEM RESOLVED...It seems Chevy engineered a ground shorting clip located under the left rear bumper area. It looks like a connector for trailer wiring harness, but in actuallity is a metal shorting clip which ties 5 wires together. They are all the ground wires for the tail lights. Then one single small wire runs to ground completeing the circuit. Problem is that this one wire is not tough enough to be a strain relief for the grounding plug and over time the ground wire wears, leaving intermittent lighting problems. FIX IS TO SPLICE THE GROUND WIRE INTO ONE OF THE FIVE OTHER WIRES AND USE PLASTIC TY WRAP FOR STRAIN RELIEF. This fixes no tail lights, intermittent rear signals, and other significant problems. I just got done making this same repair on a 2000 s-10 and everything works fine. Since it is the strain on the single ground wire connected to the connector that leads to failure, it is best to tie a new ground or clip the ground wire coming out of the plug and resplice it into one of the other five wires. Does not matter which one since electrically it makes no difference; they are all gound wires. BUT only one wire completes the connection and that is the problem. Really good engineering Chevy! The location is under left rear of bed in wiring harness right before the split. The connector is blue or green. Take the cover off to see the metal shorting clip. Also note the ground wire coming out of the plug/connector and runs about 8 inches to frame. If this is not hooked up you will have tail light issues. If you register on Autozone .com you can access wiring schematics for free. BL
Posted on May 16, 2009
Try checking and or installing a new ground directly to the one of the light sockets...usually when you have undesired operation of lights dimming flashing funny the ground is the culprit.
hope this helps.........good luck!
Posted on Dec 15, 2008
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Posted on Jan 02, 2017
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