Table 3-1. Operator/Crew Troubleshooting.
TEST OR INSPECTION
ALL LAMPS DO NOT LIGHT.
Turn on tractor lights and check their operation. Refer to tractor operator's manual.
If tractor lamps do not light, notify unit maintenance.
Check tractor-to-semitrailer electrical cable (1) for proper connection (para 2-5).
If electrical cable (1) is not properly connected, disconnect and connect properly (para 2-5).
Check semitrailer and tractor cable connectors (2 and 5) and sockets (4 and 6) for bent, broken,
dirty, or corroded pins (3).
If pins (3) or sockets (4 and 6) are dirty or corroded, clean them (para 3-6).
If pins (3) are broken, notify unit maintenance.
If all lamps still do not light, notify unit maintenance.