Powertrain Control Module (PCM) Connector End Views C2 (3.1L)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12191110 80-Way F Micro-Pack 100 W Series, Sealed (CLR)
Pin	Wire Color	Circuit No.	Function
1	-	-	Not Used
2	WHT	1310	EVAP Canister Vent Solenoid Valve Control
3	DK GRN/WHT	465	Fuel Pump Relay Control
4	WHT	257	EGR Solenoid High Control
5	BRN/WHT	419	MIL Control
6	-	-	Not Used
7	LT BLU/WHT	1747	IAC Coil A High Control
8-9	-	-	Not Used
10	PPL	412	HO2S High Signal
11	PPL/WHT	1668	HO2S High Signal
12-15	-	-	Not Used
16	WHT	776	Transmission Range Signal P
17	-	-	Not Used
18	BLK/WHT	771	Transmission Range Signal A
19	TAN/BLK	231	Oil Pressure Switch Signal
20-21	-	-	Not Used
22	DK GRN/WHT	762	A/C Request Signal (CJ3)
23	PPL	806	Crank Voltage
24	PNK	439	Ignition 1 Voltage
25	LT GRN	432	MAP Sensor Signal
26	YEL	410	ECT Sensor Signal
27	RED/BLK	380	A/C Refrigerant Pressure Sensor Signal
28	BRN	1456	EGR Valve Position Signal
29	-	-	Not Used
30	GRY/BLK	2702	5-Volt Reference
31-32	-	-	Not Used
33	GRY	2701	5-Volt Reference
34	GRY	474	5-Volt Reference
35	BLK	452	Low Reference
36	-	-	Not Used
37	BLK/WHT	3113	HO2S Heater Low Control
38	-	-	Not Used
39	DK GRN/WHT	459	A/C Compressor Clutch Relay Control
40-41	-	-	Not Used
42	LT BLU/BLK	844	Fuel Injector 4 Control
43	-	-	Not Used
44	LT BLU/BLK	1748	IAC Coil A Low Control
45	RED/BLK	1228	PC Solenoid Valve High Control Sol. A
46	LT BLU/WHT	1229	PC Solenoid Valve Low Control Sol. A
47-48	-	-	Not Used
49	LT GRN/BLK	444	IAC Coil B Low Control
50	TAN	472	IAT Sensor Signal
51-54	-	-	Not Used
55	DK GRN	890	Fuel Tank Pressure Sensor Signal
56	GRY	773	Transmission Range Signal C
57- 58	-	-	Not Used
59	WHT	85	Cruise Control Engaged Signal
60	-	-	Not Used
61	RED	225	Generator Turn ON Signal
62	-	-	Not Used
63	YEL	657	TCC Release Switch Signal
64-65	-	-	Not Used
66	DK BLU	417	TP Sensor Signal
67	-	-	Not Used
68	YEL/BLK	1227	TFT Sensor Signal
69	PPL	1589	Fuel Level Sensor Signal
70	LT GRN	1867	12-Volt Reference
71	-	-	Not Used
72	RED/WHT	812	12-Volt Reference
73	BLK	407	Low Reference
74	YEL/BLK	1868	Low Reference
75	BRN	436	AIR Pump Relay Control
76	YEL/BLK	625	Starter Enable Relay Control
77	-	-	Not Used
78	BRN	418	TCC PWM Solenoid Valve Control
79	-	-	Not Used
80	TAN	413	HO2S Low Signal