Repair Pontiac Mid-size 1974-1983 Repair Guide

Wiring Diagrams

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



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Fig. Fig. 2 Common wiring diagram symbols



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Fig. Fig. 3 Engine control wiring diagram-1974 Grand Prix, GTO and Grand Am



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Fig. Fig. 4 Engine control wiring diagram-1974 Grand Prix, GTO and Grand Am



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Fig. Fig. 5 Chassis wiring diagram-1974 GTO, 1974-75 Ventura, Grand Am, Grand Prix and LeMans and 1975 Grand LeMans



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Fig. Fig. 6 Engine control wiring diagram-1975-77 Ventura and 1977-79 Phoenix



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Fig. Fig. 7 Engine control wiring diagram-1975-80 Grand Prix, LeMans and Grand LeMans without ECM



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Fig. Fig. 8 Chassis wiring diagram (part 1 of 2)-1976-77 LeMans, Grand LeMans, Grand Am and Grand Prix



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Fig. Fig. 9 Chassis wiring diagram (part 2 of 2)-1974-77 Grand Prix, Grand Am and Grand LeMans



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Fig. Fig. 10 Chassis wiring diagram (part 1 of 2)-1976-77 Ventura and 1977-79 Phoenix



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Fig. Fig. 11 Chassis wiring diagram (part 2 of 2)-1974 GTO and 1974-77 Ventura and LeMans



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Fig. Fig. 12 Engine control wiring diagram-1980 Grand Prix, LeMans, Grand LeMans with 231 engine



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Fig. Fig. 13 Chassis wiring diagram (part 1 of 2)-1978-80 LeMans, Grand LeMans and Grand Prix



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Fig. Fig. 14 Chassis wiring diagram (part 2 of 2)-1978-80 LeMans, Grand LeMans and Grand Prix



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Fig. Fig. 15 Chassis wiring diagram-Phoenix



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Fig. Fig. 16 Engine control wiring diagram-1981 Grand Prix, LeMans and Grand LeMans with 231 engine



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Fig. Fig. 17 Engine control wiring diagram-1980-81 LeMans and Grand LeMans and 1981 Grand Prix with 265 engine



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Fig. Fig. 18 Engine control wiring diagram-1982 Grand Prix with 252 engine and 1983 federal Grand Prix with 231 engine



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Fig. Fig. 19 Engine control wiring diagram-1982 Grand Prix with 231 engine and 1983 California Grand Prix with 231 engine



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Fig. Fig. 20 Engine control wiring diagram-1981-83 Grand Prix with 350 diesel engine



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Fig. Fig. 21 Engine control wiring diagram-1983 Grand Prix with 350 engine



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Fig. Fig. 22 Chassis wiring diagram (part 1 of 2)-1981 LeMans and Grand LeMans and 1981-83 Grand Prix



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Fig. Fig. 23 Chassis wiring diagram (part 2 of 2)-1977-79 Phoenix, 1978-83 Grand Prix, and 1981-83 LeMans and Grand LeMans

 
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