Engine Control Module Connector End View (ECM) C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		1928403386 64-Way F (BLK)
Pin	Wire Color	Circuit No.	Function
1	PNK	5290	Ignition 1 Voltage
2	-	3122	Not Used
3	PNK	239	Ignition 1 Voltage
4	DK BLU	473	High Speed Cooling Fan Relay Control
5	WHT	121	Engine Speed Signal
6	-	-	Not Used
7	WHT/BLK	1164	5-Volt Reference
8	PPL	1272	Low Reference
9	RED/BLK	380	A/C Refrigerant Pressure Sensor Signal
10	WHT	5371	Stop Lamp Switch Signal
11	TAN	472	IAT Sensor Signal
12	DK GRN	890	Fuel Tank Pressure Sensor Signal
13	-	-	Not Used
14	GRY/BLK	87	Cruise Control Resume/Accel Switch Signal
15	ORN/BLK	463	Requested Torque Signal
16	-	-	Not Used
17	PNK	5290	Ignition 1 Voltage
18	-	-	Not Used
19	DK GRN/WHT	465	Fuel Pump Relay Control
20	DK GRN	335	Low Speed Cooling Fan Relay Control
21	-	-	Not Used
22	DK GRN	389	Vehicle Speed Signal Output
23	TAN/WHT	2500	CAN Serial Data High
24	BRN	5069	Engine Controls Main Relay Control
25	BLK	2759	Low Reference
26	BLK	2760	MAF Sensor Low Reference
27	-	-	Not Used
28	-	-	Not Used
29	PPL/WHT	1668	HO2S Signal Bank 1 Sensor 2
30	DK BLU	84	Cruise Control Set/Coast Switch
31	YEL	5	Crank Voltage
32	ORN/BLK	1786	PNP Signal
33	WHT	1310	EVAP Canister Vent Solenoid Control
34	-	-	Not Used
35	YEL/BLK	625	Starter Relay Control
36	ORN	540	Battery Positive Voltage
37	TAN/BLK	464	Delivered Torque Signal
38	-	-	Not Used
39	GRY	596	5-Volt Reference
40	BRN	1271	Low Reference
41	-	-	Not Used
42	PPL	1589	Fuel Level Sensor Signal - Primary
43	YEL	492	MAF Sensor Signal
44	LT BLU	1162	APP Sensor 2 Signal
45	GRY	397	Cruise Control On Switch Signal
46	PPL	420	Cruise Control Release Signal
47	-	-	Not Used
48	DK GRN	1049	Class 2 Serial Data
49	DK GRN/WHT	459	A/C Clutch Relay Control
50	BRN/WHT	419	MIL Control
51-54	-	-	Not Used
55	TAN	2501	CAN Serial Data Low
56	TAN	1274	5-Volt Reference
57	TAN/WHT	1669	HO2S Low Reference Sensor 1
58	DK GRN	500	Accessory Voltage
59	-	-	Not Used
60	DK BLU	1161	APP Sensor Signal 1
61-64	-	-	Not Used