Engine Control Module (ECM) Connector End View C2

Fig 1: Engine Control Module (ECM) C2 Connector End Views

Courtesy of GENERAL MOTORS CORP.

Engine Control Module (ECM) C2 Connector Parts Information

Connector Part Information

OEM: 1928403386
Service: 88956567
Description: 64-Way F Bosch (BK)

Terminal Part Information

Pins: 1, 2, 3, 17, 18, 23, 25, 26, 33, 39, 53, 55, 4, 5, 7, 8, 9, 10, 11, 12, 15, 19, 20, 22, 24, 27, 29, 31, 32, 35, 36, 37, 40, 41, 42, 43, 44, 47, 48, 49, 50, 52, 56, 57, 58, 59, 60, 61, 63, 64
Terminal/Tray: 1928498016/17
Core/Insulation Crimp: Pins 1, 2, 3, 17, 18, 23, 25, 26, 33, 39, 53, 55 - See Terminal Repair Kit
Core/Insulation Crimp: Pins 4, 5, 7, 8, 9, 10, 11, 12, 15, 19, 20, 22, 24, 27, 29, 31, 32, 35, 36, 37, 40, 41, 42, 43, 44, 47, 48, 49, 50, 52, 56, 57, 58, 59, 60, 61, 63, 64 - N/N
Release Tool/Test Probe: J-38125-560/J-35616-64B (L-BU)

Engine Control Module (ECM) C2 Connector End View

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	-	-	Not Used
52	PU	5128	Auxiliary Cooling Fan Relay Control
53	BN/WH	379	CPP Switch Signal
54	-	-	Not Used
55	D-GN	2501	High Speed GMLAN Serial Data Bus- (MV1)
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	YE	400	Signal High - Front/VSS High Signal/OSS High Signal