GM Firebird 1982-1992 Repair Guide

WIRING DIAGRAMS

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See Figures 1 through 62

The following wiring diagrams are provided to help troubleshoot electrical problems and as a an additional source to help understand the complex wiring utilized by these vehicles. No attempt has been made to illustrate most components as they physically appear, instead, representations are used to simplify the diagram. When working on a system, locate the component and use the wire color codes to help trace the circuit.



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Fig. Fig. 1: 1982 2.5L engine wiring



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Fig. Fig. 2: 1982 2.8L engine wiring



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Fig. Fig. 3: 1982 5.0L carbureted engine wiring



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Fig. Fig. 4: 1982 5.0L Crossfire Injection engine wiring



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Fig. Fig. 5: 1982 body wiring



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Fig. Fig. 6: 1982 body wiring, continued



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Fig. Fig. 7: 1983 2.5L engine wiring



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Fig. Fig. 8: 1983 2.8L engine wiring



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Fig. Fig. 9: 1983 5.0L carbureted engine wiring



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Fig. Fig. 10: 1983 5.0L Crossfire Injection engine wiring



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Fig. Fig. 11: 1983 body wiring



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Fig. Fig. 12: 1983 body wiring, continued



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Fig. Fig. 13: 1984 2.5L engine wiring



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Fig. Fig. 14: 1984 2.8L engine wiring



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Fig. Fig. 15: 1984 5.0L engine wiring



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Fig. Fig. 16: 1984 body wiring



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Fig. Fig. 17: 1984 body wiring, continued



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Fig. Fig. 18: 1985 2.5L engine wiring



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Fig. Fig. 19: 1985 5.0L carbureted engine wiring



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Fig. Fig. 20: 1985 body wiring



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Fig. Fig. 21: 1985 body wiring, continued



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Fig. Fig. 22: 1986 2.5L engine wiring



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Fig. Fig. 23: 1986 2.8L fuel injected engine wiring



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Fig. Fig. 24: 1986 5.0L carbureted engine wiring



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Fig. Fig. 25: 1986 5.0L Tuned Port Injection engine wiring



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Fig. Fig. 26: 1986 body wiring



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Fig. Fig. 27: 1986 body wiring continued



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Fig. Fig. 28: 1987 2.8L fuel injected engine wiring



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Fig. Fig. 29: 1987 5.0L carbureted engine wiring



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Fig. Fig. 30: 1987 5.0L Tune Port Injection engine wiring



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Fig. Fig. 31: 1987 5.7L Tuned Port Injection engine wiring



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Fig. Fig. 32: 1987 body wiring



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Fig. Fig. 33: 1987 body wiring, continued



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Fig. Fig. 34: 1988 2.8L engine wiring



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Fig. Fig. 35: 1988 5.0L throttle body fuel injection engine wiring



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Fig. Fig. 36: 1988 5.0L Tuned Port Injection engine wiring



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Fig. Fig. 37: 1988 5.7L Tuned Port Injection engine wiring



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Fig. Fig. 38: 1988 body wiring



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Fig. Fig. 39: 1988 body wiring, continued



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Fig. Fig. 40: 1989 2.8L engine wiring



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Fig. Fig. 41: 1989 5.0L throttle body fuel injection engine wiring



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Fig. Fig. 42: 1989 5.0L Tuned Port Injection engine wiring



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Fig. Fig. 43: 1989 5.7L Tuned Port Injection engine wiring



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Fig. Fig. 44: 1989 body wiring



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Fig. Fig. 45: 1989 body wiring, continued



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Fig. Fig. 46: 1990 3.1L engine wiring



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Fig. Fig. 47: 1990 5.0L throttle body fuel injection engine wiring



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Fig. Fig. 48: 1990 5.0L Tuned Port Injection engine wiring



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Fig. Fig. 49: 1990 5.7L Tuned Port Injection engine wiring



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Fig. Fig. 50: 1990 body wiring



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Fig. Fig. 51: 1990 body wiring, continued



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Fig. Fig. 52: 1991 3.1L engine wiring



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Fig. Fig. 53: 1991 5.0L throttle body fuel injection engine wiring



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Fig. Fig. 54: 1991 5.0L Tuned Port Injection engine wiring



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Fig. Fig. 55: 1991 5.7L Tuned Port Injection engine wiring



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Fig. Fig. 56: 1991 body wiring



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Fig. Fig. 57: 1991 body wiring, continued



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Fig. Fig. 58: 1992 5.0L throttle body fuel injection engine wiring



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Fig. Fig. 59: 1992 5.0L Tuned Port Injection engine wiring



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Fig. Fig. 60: 1992 5.7L Tuned Port Injection engine wiring



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Fig. Fig. 61: 1992 body wiring



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Fig. Fig. 62: 1992 body wiring, continued

 
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