Engine Control Module (ECM) Connector End View/Part Information/Terminal Identification C

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		AMP 0-368434-1 64-Way F ECU 64P Conn Assembly (32-bit-B) (BK)
Pin	Wire Color	Circuit No.	Function
1	GY	596	5 Volt Reference
2	WH/PK	1031	5 Volt Reference
3	D-GN/WH	718	Low Reference
4	L-BU	1937	Low Reference
5	BN	1977	Fuel Level Sensor Supply
6	GY	474	5 Volt Reference
7-8	-	-	Not Used
9	L-BU	645	Low Reference
10-11	-	-	Not Used
12	PK/D-BU	1734	Ignition 1 Voltage
13	PK/D-BU	1734	Ignition 1 Voltage
14	-	-	Not Used
15	L-GN	1888	CPP Switch Signal (M/T)
16	-	-	Not Used
17	OG	440	Battery Positive Voltage
18	OG	440	Battery Positive Voltage
19	BK/WH	51	Ground
20	BK/WH	51	Ground
21	BK/WH	51	Ground
22	BK/WH	51	Ground
23-24	-	-	Not Used
25	D-GN/WH	762	A/C Request Signal
26	BN	20	Stop Lamp Switch Output
27	-	-	Not Used
28	D-GN	17	Stop Lamp Switch Output
29	D-BU	1161	APP Sensor 1 Signal
30	PU	203	A/C Pressure Sensor Signal
31	BK/WH	2051	Serial Data
32	-	-	Not Used
33	PK	1739	Ignition 1 Voltage
34	GY	473	High Speed Cooling Fan Relay Control
35	D-GN	67	A/C Clutch Relay Control
36	WH	441	Main Relay Control
37	YE/BK	183	Cruise Indicator Control
38	D-GN	817	Vehicle Speed Signal (M/T)
39-40	-	-	Not Used
41	GY	121	Engine Speed Signal
42	BN	497	Fuel Pump Relay Control
43	GY	1936	Fuel Level Sensor Signal
44	WH	1162	APP Sensor 2 Signal
45	D-GN/WH	397	Cruise Control Switch Signal
46	PU	1807	CAN Serial Data High
47	L-BU/PU	1036	Fuel Tank Pressure Sensor Signal
48	D-GN	602	Rough Road Sensor Signal
49	BK/WH	419	MIL Control
50	D-GN	355	Low Speed Cooling Fan Relay Control
51-55	-	-	Not Used
56	WH	135	Engine Coolant Temperature Gauge Control
57	BN	1671	HO2S2 Heater Control
58-60	-	-	Not Used
61	WH	30	Fuel Gauge Control
62	L-GN	413	HO2S2 Signal
63	YE	710	CAN Serial Data Low
64	YE	834	ABS