Powertrain Control Module (PCM) Connector End View C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12191110 80-Way F Micro-Pack 100W Series, Sealed (BLU)
Pin	Wire Color	Circuit No.	Function
1	BLK	2762	Low Reference
2-3	-	-	Not Used
4	LT GRN	1222	1-2 Shift Solenoid Valve Control
5	DK BLU	473	High Speed Cooling Fan Relay Control
6	DK GRN	335	Low Speed Cooling Fan Relay Control
7	BRN/WHT	633	CMP Sensor Signal
8	PPL/WHT	430	Low Resolution Engine Speed Signal
9	LT BLU/BLK	647	Medium Resolution Engine Speed Signal
10	GRY	2704	5-Volt Reference
11	-	-	Not Used
12	BLK	808	HO2S Low Signal
13	ORN/ BLK	469	Low Reference
14-15	-	-	Not Used
16	BLK/WHT	451	Ground
17	BLK	2760	Low Reference
18	-	-	Not Used
19	PPL	1500	Ignition 0 Voltage
20	ORN	540	Battery Positive Voltage
21-27	-	-	Not Used
28	BLK	808	HO2S Low Signal
29	BLK	808	Low Reference
30	PPL	420	TCC Brake Switch/Cruise Control Release Signal
31	BLK	2753	Low Reference
32	GRY	435	EGR Solenoid Low Control
33	DK BLU	496	KS 1 Signal
34-37	-	-	Not Used
38	LT GRN/WHT	1749	IAC Coil B High Control
39-42	-	-	Not Used
43	BLK	1744	Fuel Injector 1 Control
44	YEL/BLK	1223	2-3 Shift Solenoid Valve Control
45	-	-	Not Used
46	PNK/BLK	1746	Fuel Injector 3 Control
47	LT GRN/BLK	1745	Fuel Injector 2 Control
48	RED/BLK	453	Low Reference
49-52	-	-	Not Used
53	TAN/BLK	424	IC Timing Signal
54	WHT	423	IC Timing Control
55	DK GRN/WHT	817	Vehicle Speed Signal
56	BLK/WHT	451	Ground
57	BLK/WHT	451	Ground
58	DK GRN	1049	PCM Class 2 Serial Data
59	-	-	Not Used
60	BLK/WHT	451	Ground
61	BLK	2752	Low Reference
62	DK BLU/WHT	1231	AT ISS Low Signal
63	RED/BLK	1230	AT ISS High Signal
64	YEL	400	Signal High-Front
65	PPL	401	Signal Low-Front
66-67	-	-	Not Used
68	YEL	772	Transmission Range Signal B
69	YEL	492	MAF Sensor Signal
70-71	-	-	Not Used
72	DK GRN	83	Cruise Control Inhibit Signal
73	BLK/WHT	845	Fuel Injector 5 Control
74-75	-	-	Not Used
76	DK GRN/WHT	428	EVAP Canister Purge Solenoid Valve Control
77-78	-	-	Not Used
79	YEL/BLK	846	Fuel Injector 6 Control
80	BLK	2751	Low Reference