Having problems with your 2003 Chevrolet Silverado 2500HD ?
No left turn or brake light on left for trailer truck works fine. No current in trailer plug wire
There are separate fuses for the trailer turn signals.Make sure they are good.They are in the under hood fuse block.If they are then check for corrosion in the trailer harness wiring.Hope this helps.Good luck.
There was a recall for the wiring harness for the RV plug.
Repair Help & Product Troubleshooting for 2003 Chevrolet Silverado 2500HD
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