tail light problem on 2000 Chevrolet Express 3500

This tail light assembly has two dual element lamps (3057) and a brown, green, and two white wires to it. One white is ground, one white is 11.2 VDC to backup light, green is 11.7 VDC to brake and turn signal light and brown is 10.6 VDC to park lights so these are dim. I checked harness under vehicle and still just 10.6 VDC on brown. Seems like a broken wire would yield 0 volts. What problem would yield 10.6 volts?

by in Flagstaff, AZ on June 19, 2010
1 answer 1 comment
ANSWER by on June 19, 2010
Do you have a full 12.6 volts at the battery? If you do it sounds like a ground issue. Make sure all grounds associated with these wires are clean (corrosion free) and making good contact (tight).
COMMENT by on June 19, 2010
I do have 12.6 volts at the battery. I suspected the ground also, so all my measurements are to battery negative post, not a ground wire in the harness. So the problem must be on the positive side of the circuits.
Related Items:
The tail light wiring harness in the cargo area is not protected very well. As a result it may become damaged due to normal wear a tear. This damage can causing some or all of the rear lights to ...
Hi. I was having brake light issues.In the daytime they worked fine but with the headlights or parking lights on the passenger side brake light would go out. I've read all about the problems with t...
On the dash, just below and to the left of Exterior Lamp Control, is a button called the Dome Lamp Override which is loose. When I pushed it today, suddenly my Head Lamps and Tail Lights are no non...
runs rough at idle,black smoke at tailpipe.give gas rpm goes up no problem and runs fine.at idle #2 port of ex manifold get red hot.replace dist. cap,rotor,plugs,ign wires and all of fuel injec...

Related Content