GM Full-Size Trucks 1970-1979 Repair Guide

WIRING DIAGRAMS

Print

See Figures 1, 2, 3, 4, 5, 6, 7, 8 and 9





Click image to see an enlarged view

Fig. Fig. 1: Sample diagram - how to read and interpret wiring

 


Click image to see an enlarged view

Fig. Fig. 2: Common wiring diagram symbols

 


Click image to see an enlarged view

Fig. Fig. 3: Engine control wiring diagram - 1970-78 vehicles

 


Click image to see an enlarged view

Fig. Fig. 4: Engine control wiring diagram - 1979 vehicles

 


Click image to see an enlarged view

Fig. Fig. 5: Body control wiring diagram - 1970-76 vehicles

 


Click image to see an enlarged view

Fig. Fig. 6: Body control wiring diagram, continued - 1970-72 vehicles

 


Click image to see an enlarged view

Fig. Fig. 7: Body control wiring diagram, continued - 1973-76 vehicles

 


Click image to see an enlarged view

Fig. Fig. 8: Body control wiring diagram - 1977-79 vehicles

 


Click image to see an enlarged view

Fig. Fig. 9: Body control wiring diagram, continued - 1977-79 vehicles

 

 
label.common.footer.alt.autozoneLogo