TAIL LIGHT WIRING DIAGRAM FOR 1992 CHEVY K1500 - Fixya Jul 29, 2012i need the tail light wiring diagram for a 2005 toyota tacoma pickup. The diagram will do you no good it you do not have amber turn signals on your trailer. What you need is a "black box" that, when wired correctly, interprets the amber turn signal on the truck into a pulsed flash to the red brake lamp on the trailer. Tail light diagram for 92 chevy truck - Fixya Jul 05, 2014Tail light diagram for 92 chevy truck - 1992 Chevrolet S-10. Posted by Anonymous on Jul 05, 2014. 92 chevy truck wiring diagram. I replaced a left tail light on my '92 Chevy Cavalier and the instrument gauges and the rear head lamps went out.