Table 3-1. Operator Troubleshooting
TEST OR INSPECTION
ALL LAMPS FAIL TO LIGHT.
Check light panel switch positions in towing vehicle.
Set light panel switches in towing vehicle to correct positions (refer to towing vehicle Operators Manual).
Check operation of towing vehicle lights.
Check for proper connection of intervehicular power cable connector at vehicle.
Pull connector out and reset fully into receptacle.
Check intervehicular power cable connector plug for dirty or corroded contacts.
Clean contacts as required.
Check intervehicular cable and wiring harness for broken wires or loose connections.
Notify Unit maintenance.
ONE OR MORE LAMPS DO NOT OPERATE PROPERLY.
Check intervehicular power cable connector for dirty or corroded contacts.