Engine Control Module (ECM) Connector End View C2 (2.8L/3.6L)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		1928403386 64-Way F Bosch (BK)
Pin	Wire Color	Circuit No.	Function
1	PK/BK	5290	Ignition 1 Voltage
2	GY/WH	3122	HO2S Heater Low Control - Bank 1 Sensor 2
3	PK	239	Ignition 1 Voltage
4	D-BU	473	High Speed Cooling Fan Relay Control
5	WH	121	Engine Speed Signal
6	-	-	Not Used
7	WH/BK	1164	5-Volt Reference A
8	PU	1272	Low Reference
9	OG/BK	380	A/C Refrigerant Pressure Sensor Signal
10	OG	5371	BAS Relay Coil Supply Voltage
11	TN	472	IAT Sensor Signal
12	D-GN	890	Fuel Tank Pressure Sensor Signal
13-14	-	-	Not Used
15	OG/BK	463	Requested Torque Signal
16	-	-	Not Used
17	PK/BK	5290	Ignition 1 Voltage
18	OG/WH	3223	HO2S Heater Low Control - Bank 2 Sensor 2
19	D-GN/WH	465	Fuel Pump Relay Control
20	D-GN	335	Low Speed Cooling Fan Relay Control
21	-	-	Not Used
22	BN	818	Vehicle Speed Signal
23	WH	2500	High Speed GMLAN Serial Data Bus+ (M82)
24	BN	5069	MAIN Relay Control
25	TN	452	Low Reference
26	TN	2760	Low Reference
27	L-BU	1937	Fuel Level Sensor Signal - Secondary
28	-	-	Not Used
29	PU/WH	1668	HO2S High Signal - Bank 1 Sensor 2
30	-	-	Not Used
31	YE	5	Crank Voltage
32	OG/BK	1786	Park/Neutral Signal (M82)
33	WH	1310	EVAP Canister Vent Solenoid Control
34	-	-	Not Used
35	YE	447	Starter Relay Coil Control
36	RD/WH	1440	Battery Positive Voltage
37	TN/BK	464	Delivered Torque Signal
38	-	-	Not Used
39	GY	596	5-Volt Reference A
40	BN	1271	Low Reference
41	TN	1671	HO2S Low Signal - Bank 2 Sensor 2
42	D-BU	1936	Fuel Level Sensor Signal - Primary
43	YE	492	MAF Sensor Signal
44	L-BU	1162	APP Sensor 2 Signal
45-46	-	-	Not Used
47	YE/BK	5270	Traction Control Data Signal
48	PU	1807	Class 2 Serial Data
49	D-GN/WH	459	A/C Compressor Clutch Relay Control
50	BN/WH	419	MIL Control
51-54	-	-	Not Used
55	L-GN	2501	High Speed GMLAN Serial Data Bus- (M82)
56	TN	1274	5-Volt Reference C
57	TN/WH	1669	HO2S Low Signal - Bank 1 Sensor 2
58	YE	343	Accessory Voltage
59	GY	1884	Cruise Control Switch Signal
60	D-BU	1161	APP Sensor Signal 1
61	PU	1670	HO2S High Signal - Bank 2 Sensor 2
62	-	-	Not Used
63	GY	847	Extended Travel Brake Switch Signal
64	-	-	Not Used