K20 Engine Control Module X1

Courtesy of GENERAL MOTORS COMPANY

Connector Part Information

Harness Type: Engine Wiring Harness
OEM Connector: 34576-1503
Service Connector: 19366870
Description: 49-Way F 0.64, 2.8 Series, Sealed (BK with BU 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	19351723	J-35616-64B (L-BU)	J-38125-213

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1	0.5	GN / WH	492	Mass Air Flow Sensor Signal	II	-
2	-	-	-	Not Occupied	-	-
3	0.5	WH	4499	High Speed GMLAN Serial Data [-] 7	II	-
4 - 5	-	-	-	Not Occupied	-	-
6	0.5	WH / BU	6311	Cruise/ETC/TCC Brake Signal	II	-
7	0.5	WH	2501	High Speed GMLAN Serial Data [-] 1	II	-
8	0.5	BN / WH	419	Check Engine Indicator Control	II	-
9	0.5	YE	5991	Powertrain Relay Coil Control	II	-
10	0.5	GN / VT	335	Cooling Fan Low Speed Relay Control	II	-
11	-	-	-	Not Occupied	-	-
12	0.5	BU / GY	636	Ambient Air Temperature Sensor Signal	II	-
13	0.5	BU / BN	4498	High Speed GMLAN Serial Data [+] 7	II	-
14	0.5	WH / GN	5380	Brake Position Sensor Signal	II	-
15	-	-	-	Not Occupied	-	-
16	0.5	WH / GY	1786	Transmission Park/Neutral Signal 1	II	-
17	0.5	BU	2500	High Speed GMLAN Serial Data [+] 1	II	-
18	0.5	WH / GY	459	A/C Compressor Clutch Relay Control	II	C60/C67
19 - 20	-	-	-	Not Occupied	-	-
21	0.5	GN / BU	428	EVAP Canister Purge Solenoid Control	II	-
22	-	-	-	Not Occupied	-	-
23	0.5	BK / GN	580	Engine Control Sensors Low Reference 2	II	-
24	0.5	BK / BU	1271	Accelerator Pedal Position Low Reference 1	II	-
25 - 29	-	-	-	Not Occupied	-	-
30	0.5	BK / VT	1272	Accelerator Pedal Position Low Reference 2	II	-
31	-	-	-	Not Occupied	-	-
32	0.5	VT / BU	5291	Powertrain Main Relay Fused Supply Voltage 2	II	-
33	0.5	VT / YE	5985	Accessory Wake-Up Serial Data	II	-
34	0.5	RD / WH	140	Battery Positive Voltage	II	-
35	0.5	BN / YE	473	Cooling Fan High Speed Relay Control	II	-
36	0.5	YE / BK	625	Starter Enable Relay Control	II	-
37	0.5	GN / GY	465	Fuel Pump Primary Relay Control	II	-
38	0.5	WH / RD	1164	Accelerator Pedal Position 5V Reference 1	II	-
39	0.5	YE / WH	1161	Accelerator Pedal Position Signal 1	II	-
40	0.5	YE / BN	331	Oil Pressure Sensor Signal	II	-
41	0.5	GN	380	A/C Refrigerant Pressure Sensor Signal	II	C60/C67
42	-	-	-	Not Occupied	-	-
43	0.5	BN / BU	2447	Evaporative Purge Pump Pressure Signal	II	-
44	0.5	GN / WH	1162	Accelerator Pedal Position Signal 2	II	-
45	0.5	BN / RD	1274	Accelerator Pedal Position 5V Reference 2	II	-
46	0.5	YE	5530	Hood Open Switch Signal	II	-
47	0.5	VT / GY	139	Run/Crank Ignition 1 Voltage	II	-
48	0.75	VT / BU	5290	Powertrain Main Relay Fused Supply Voltage 1	II	-
49	2.5	VT / BU	5290	Powertrain Main Relay Fused Supply Voltage 1	I	-