K20 Engine Control Module X3 (LH7)

Courtesy of GENERAL MOTORS COMPANY

Connector Part Information

Harness Type: Engine
OEM Connector: 34576-0703
Service Connector: 88988373
Description: 56-Way F 0.64 Series, Sealed (BU with BU Terminal Position Assurance)

Terminal Part Information

Terminal Type ID	Terminated Lead	Diagnostic Test Probe	Terminal Removal Tool	Service Terminal	Tray Name	Core Crimp	Insulation Crimp
I	19330179	J-35616-64B (LT BU)	J-38125-215A	Not Available	Not Available	Not Available	Not Available

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1	0.5	BN/WH	3100	Diesel Exhaust Fluid Dosing Valve Low Control	I	-
2 - 5	-	-	-	Not Occupied	-	-
6	0.5	YE/WH	3200	Throttle Inlet Absolute Pressure Sensor Signal	I	-
7	0.5	WH/RD	3201	Throttle Inlet Absolute Pressure Sensor 5V Reference	I	-
8	0.5	BK/GN	580	Engine Control Sensors Low Reference 2	I	-
9	-	-	-	Not Occupied	-	-
10	0.5	BK/BU	6274	Exhaust Gas Recirculation Temperature Sensor Low Reference	I	-
11	-	-	-	Not Occupied	-	-
12	0.5	BK/GN	3657	Exhaust Gas Temperature Sensor 3 Low Reference	I	-
13	0.5	BK/BU	6783	Exhaust Gas Temperature Sensor 2 Low Reference	I	-
14	0.5	BU/WH	5277	Exhaust Gas Temperature Sensor 1 Signal	I	-
15	0.5	BN	3099	Diesel Exhaust Fluid Dosing Valve High Control	I	-
16	0.5	GY/WH	3113	HO2S Heater Low Control Bank 1 Sensor 1	I	-
17 - 18	-	-	-	Not Occupied	-	-
19	0.5	BK/YE	6275	Exhaust Gas Recirculation Temperature Sensor 2 Low Reference	I	-
20	0.5	YE/GN	3236	Exhaust Gas Recirculation Temperature Sensor 2 Signal	I	-
21	-	-	-	Not Occupied	-	-
22	0.5	BU/GY	636	Ambient Air Temperature Sensor Signal	I	-
23	-	-	-	Not Occupied	-	-
24	0.5	WH/BN	3237	Exhaust Gas Recirculation Temperature Sensor Signal	I	-
25	-	-	-	Not Occupied	-	-
26	0.5	GY/GN	5378	Exhaust Gas Temperature Sensor 3 Signal	I	-
27	0.5	BK/BN	6782	Exhaust Gas Temperature Sensor 1 Low Reference	I	-
28	0.5	BU/GN	5377	Exhaust Gas Temperature Sensor 2 Signal	I	-
29	-	-	-	Not Occupied	-	-
30	0.5	YE/BU	1497	Positive Crankcase Ventilation Heater Control	I	-
31	-	-	-	Not Occupied	-	-
32	0.5	BN/GY	4008	Humidity Sensor Signal	I	-
33	0.5	BK/YE	6032	Brake Vacuum Sensor Low Reference	I	-
34	0.5	YE/VT	6030	Brake Vacuum Sensor Signal	I	-
35	0.5	YE/RD	6031	Brake Vacuum Sensor 5V Reference	I	-
36	0.5	GY	4109	Driver Mode Switch 5V Reference	I	-
37	0.5	WH/VT	4108	Driver Mode Switch Signal	I	-
38 - 40	-	-	-	Not Occupied	-	-
41	0.5	YE/GY	6936	HO2S Signal	I	-
42	0.5	BN	6934	HO2S Ground	I	-
43	0.5	GN/BU	3889	Powertrain Sensor Bus Relay Control	I	-
44	0.5	VT/BU	6091	Crankshaft Position Sensor Replicated Signal	I	-
45	0.5	BU	3017	Fuel Heater Relay 1 Control	I	-
46	0.5	GY/VT	7368	Intake Manifold Runner Valve Actuator Position Signal	I	-
47 - 49	-	-	-	Not Occupied	-	-
50	0.5	WH/RD	6054	Exhaust Pressure Sensor 1 5V Reference	I	-
51	0.5	BU	6053	Exhaust Pressure Sensor 1 Signal	I	-
52	0.5	BK/YE	6055	Exhaust Pressure Sensor 1 Low Reference	I	-
53 - 54	-	-	-	Not Occupied	-	-
55	0.5	BN/WH	6933	HO2S Pump Current Signal	I	-
56	0.5	GN	6935	HO2S Pump Current Trim Signal	I	-