K20 Engine Control Module X1

Courtesy of GENERAL MOTORS COMPANY

Connector Part Information

Harness Type: Engine Wiring Harness
OEM Connector: 34566-7593
Service Connector: 13574947
Description: 73-Way F 0.64, 2.8 Series, Sealed (BK with BK Terminal Position Assurance)

Terminal Part Information

Terminal Type ID	Terminated Lead	Diagnostic Test Probe	Terminal Removal Tool
I	13587518	J-35616-35 (VT)	J-38125-11A
II	19354746	J-35616-64B (L-BU)	J-38125-215A

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1 - 2	-	-	-	Not Occupied	-	-
3	0.5	WH / GY	1786	Transmission Park/Neutral Signal 1	II	MR8
4	0.5	GN / WH	492	Mass Air Flow Sensor Signal	II
5	0.5	GN	3098	Output Speed Signal	II	MR7
6 - 8	-	-	-	Not Occupied	-	-
9	0.5	GN	380	A/C Refrigerant Pressure Sensor Signal	II	C60/C68
10	0.5	BK / BN	5514	A/C Refrigerant Pressure Sensor Low Reference	II	C60/C68
11	0.5	VT / GY	139	Run/Crank Ignition 1 Voltage	II	-
12	0.5	BN / WH	419	Check Engine Indicator Control	II
13	0.5	GN / GY	465	Fuel Pump Primary Relay Control	II
14	0.5	WH / BK	3097	Digital Output Speed Sensor 5V Reference	II	MR7
15	0.5	RD / WH	140	Battery Positive Voltage	II
16	0.5	VT / BU	5290	Powertrain Main Relay Fused Supply Voltage 1	II
17 - 19	-	-	-	Not Occupied	-	-
20	0.5	WH / BU	6311	Cruise/ETC/TCC Brake Signal	II
21 - 23	-	-	-	Not Occupied	-	-
24	0.5	WH / YE	3202	Throttle Inlet Absolute Pressure Sensor 5V Reference	II
25	0.5	GN / WH	1162	Accelerator Pedal Position Signal 2	II
26	0.5	VT / BU	5293	Powertrain Main Relay Fused Supply Voltage 4	II
27 - 28	-	-	-	Not Occupied	-	-
29	0.5	YE	5991	Powertrain Relay Coil Control	II
30	0.5	YE / BK	625	Starter Enable Relay Control	II
31	-	-	-	Not Occupied	-	-
32	0.5	VT / YE	5985	Accessory Wake-Up Serial Data	II
33	0.5	BU	179	Engine Oil Pump Control	II
34	-	-	-	Not Occupied	-	-
35	0.5	WH	1310	EVAP Vent Solenoid Valve Control	II
36	-	-	-	Not Occupied	-	-
37	0.5	WH	2501	High Speed GMLAN Serial Data [-] 1	II
38 - 39	-	-	-	Not Occupied	-	-
40	0.5	BK / VT	1272	Accelerator Pedal Position Low Reference 2	II
41	0.5 0.5	YE WH / GN	6111 5380	Clutch Pedal Position Sensor Signal Brake Position Sensor Signal	II II	MR7 MR8
42	-	-	-	Not Occupied	-	-
43	0.5	WH / BU	6289	Intake Air Temperature Sensor Signal	II
44	-	-	-	Not Occupied	-	-
45	0.5	BU / VT	1589	Primary Fuel Level Sensor Signal	II
46	0.5	BK / GN	6281	Fuel Level Sensor Low Reference	II
47	0.5	WH / RD	3201	Throttle Inlet Absolute Pressure Sensor 5V Reference	II
48	0.5 0.5	GY / RD WH / RD	6109 5381	Clutch Pedal Position Sensor 5V Reference Brake Position Sensor 5V Reference	II II	MR7 MR8
49	-	-	-	Not Occupied	-	-
50	0.5	YE / RD	2709	Fuel Tank Pressure Sensor 5V Reference	II
51	0.5	BN / RD	1274	Accelerator Pedal Position 5V Reference 2	II
52	0.5	WH / RD	1164	Accelerator Pedal Position 5V Reference 1	II
53	0.5	BN / YE	473	Cooling Fan High Speed Relay Control	II
54	0.5	WH / GY	459	A/C Compressor Clutch Relay Control	II	C60/C68
55	0.5	GN / VT	335	Cooling Fan Low Speed Relay Control	II
56	0.5	BK / VT	2760	Intake Air Temperature Sensor Low Reference	II
57	0.5	BU	2500	High Speed GMLAN Serial Data [+] 1	II
58	0.5 0.5	BK / GY BK / YE	6110 5382	Clutch Pedal Position Sensor Low Reference Brake Position Sensor Low Reference	II II	MR7 MR8
59 - 60	-	-	-	Not Occupied	-	-
61	0.5	BK / BU	1271	Accelerator Pedal Position Low Reference 1	II
62	0.5	YE / WH	1161	Accelerator Pedal Position Signal 1	II
63 - 67	-	-	-	Not Occupied	-	-
68	0.5	GY / BK	3096	Digital Output Speed Sensor 5V Reference	II	MR7
69 - 71	-	-	-	Not Occupied	-	-
72	0.5	BN / RD	2700	A/C Pressure Sensor 5V Reference	II	C60/C68
73	2.5	BK	350	Ground	I