GMC 1976 ZEO 6083 Maintenance Manual page 626

DIRECTIONAL SIGNAL CONNECTOR
iC
BACK-UP LAMP CONNECTOR
POWER LEVEL
WARNING
CONNECTOR
A-1799
Figure 30-Steering Column Wiring
CHASSIS ELECTRICAL 12- 21
BODY SIDE HARNESS
REAR END WIRING CONNECTOR
REAR BUMPER
TO REAR MARKER &
[DENT. LIGHTS & SPEAKERS
A-5196
Figure 31-Rear Body Wiring
BODY SIDE HARNESS
FRONT
TRAILER WIRING HARNESS
REAR END WIRING
REAR SPEAKER CONNECTION
A-1801
Figure 32-Trailer Wiring