Another thing to try is pull all the plugs out of the junction block.
Tail light harness junction block wiring diagram.
1 tracer instead of 14ga.
Junction block x61 instrument panel connector x7.
If the left side is fine i know that the wiring to the rear junction block is okay.
All lights on the right side work except for the tail light.
Wiring diagram for trailer tail lights new trailer light harness a novice s overview of circuit diagrams an initial look at a circuit layout might be complicated however if you could check out a metro map you can check out schematics.
3 white tracers lo beam wire from dimmer to junction block should be 14 ga.
136 electrical manual new 2014 light duty full size c k trucks pg.
2 tracers and.
Hi beam wire from dimmer to junction block should be 12 ga.
Start testing direct at the incoming harness with a test light and verify all your signals and lights are working to that point.
Iff all works at that point then plug the main back in and start testing at the left and right plug ins on the junction block.
7 electrical manual 2014 light duty full size c k trucks revision date 06 19 2013 wip.