ELECTRICAL SYSTEMS OPERATION (Contd)
Trailer and Semitrailer Connection System Operation.
The trailer receptacle is identical on all models covered in this manual. The semitrailer receptacle is on the
tractor body only.
TRAILER RECEPTACLE - Provides vehicle lighting, auxiliary power, and a ground circuit for trailers.
SEMITRAILER RECEPTACLE - M931/A1/A2 and M932/A1/A2 vehicles equipped with a fifth wheel are provided
with a semitrailer receptacle. This receptacle provides vehicle lighting, auxiliary power, and a ground circuit for