Emergency Brake Switch has 2 wires
One connects to trailer battery 12V DC (+)
Other one connects to wire from trailer plug that goes to trailer brakes (12V DC +)
Check that you have 12V DC + to emergency brake switch.....thru switch with pin pulled and properly connected to trailer brake wire (Unplug trailer to truck pigtail cord while testing so that you are using trailer battery voltage)
Is it time for your medication or mine?
2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31