I looked at splices and ground. All appears OK.
I checked voltages at plug into rear light panel on one side. 5 wires go in. It appears 2 are ground and 3 power to the 3 bulbs. Each gets power (and light up) at appropriate times: backup when in reverse, brake when brake on, blink with turn signal. "Lamp Out" light on dash lights up when lamp is pulled. However, nothing seems to be telling the appropriate lights to turn when when head lights are turned on, so back of truck is dark unless turning, signaling, or braking.
Any further ideas? Did I miss something?
Saturday, February 20th, 2010 AT 1:41 PM