K20 Engine Control Module X1

Courtesy of GENERAL MOTORS COMPANY

Connector Part Information

Harness Type: Engine
OEM Connector: 33257856
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	13576377	J-35616-35 (VT)	J-38125-12A
II	19354746	J-35616-64B (LT BU)	J-38125-213
III	19354746	J-35616-64B (LT BU)	J-38125-215A

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1	0.5	GN/WH	492	Mass Air Flow Sensor Signal	III	-
2	0.5	WH/BU	6289	Intake Air Temperature Sensor Signal	III	-
3	0.35	WH	4499	High Speed GMLAN Serial Data [-] 7	II	-
4	-	-	-	Not Occupied	-	-
5	0.35	WH	7494	High Speed GMLAN Serial Data [-] 3	II	-
6	0.35 0.5	WH/BU WH/BU	6311 6311	Cruise/ETC/TCC Brake Signal Cruise/ETC/TCC Brake Signal	II III	LFV LTG
7	0.5	WH	2501	High Speed GMLAN Serial Data [-] 1	III	-
8	0.35 0.5	BN/WH BN/WH	419 419	Check Engine Indicator Control Check Engine Indicator Control	II III	LFV LTG
9	0.35 0.5	YE YE	5991 5991	Powertrain Relay Coil Control Powertrain Relay Coil Control	II III	LFV LTG
10 - 11	-	-	-	Not Occupied	-	-
12	0.35 0.5	BU/GY BU/GY	636 636	Ambient Air Temperature Sensor Signal Ambient Air Temperature Sensor Signal	II III	LFV LTG
13	0.35	BU/BN	4498	High Speed GMLAN Serial Data [+] 7	II	-
14	0.35 0.5	WH/GN WH/GN	5380 5380	Brake Position Sensor Signal Brake Position Sensor Signal	II III	LFV LTG
15	0.35	BU/BK	7493	High Speed GMLAN Serial Data [+] 3	II	-
16	-	-	-	Not Occupied	-	-
17	0.5	BU	2500	High Speed GMLAN Serial Data [+] 1	III	-
18	0.35 0.5	WH/GY WH/GY	459 459	A/C Compressor Clutch Relay Control A/C Compressor Clutch Relay Control	II III	LFV LTG
19 - 20	-	-	-	Not Occupied	-	-
21	0.5	GN/BU	428	EVAP Canister Purge Solenoid Control	III	-
22	-	-	-	Not Occupied	-	-
23	0.5	BK/GN	580	Engine Control Sensors Low Reference 2	III	-
24	0.35 0.5	BK/BU BK/BU	1271 1271	Accelerator Pedal Position Low Reference 1 Accelerator Pedal Position Low Reference 1	II III	LFV LTG
25 - 26	-	-	-	Not Occupied	-	-
27	0.5	WH/BU	5726	Ignition Mode Switch Mode Control Backup	III	-
28	0.5	BN/GN	1174	Oil Level Switch Signal	III	-
29	-	-	-	Not Occupied	-	-
30	0.35 0.5	BK/VT BK/VT	1272 1272	Accelerator Pedal Position Low Reference 2 Accelerator Pedal Position Low Reference 2	II III	LFV LTG
31	-	-	-	Not Occupied	-	-
32	0.5	VT/BU	5291	Powertrain Main Relay Fused Supply Voltage 2	III	-
33	0.5	VT/YE	5985	Accessory Wake-Up Serial Data	III	-
34	0.5	RD/WH	140	Battery Positive Voltage	III	-
35	-	-	-	Not Occupied	-	-
36	0.35	YE/VT	4325	Starter Pinion Solenoid Actuator Relay Control	II	-
37	0.35 0.5	GN/GY GN/GY	465 465	Fuel Pump Primary Relay Control Fuel Pump Primary Relay Control	II III	LFV LTG
38	0.35 0.5	WH/RD WH/RD	1164 1164	Accelerator Pedal Position 5V Reference 1 Accelerator Pedal Position 5V Reference 1	II III	LFV LTG
39	0.35 0.5	YE/WH YE/WH	1161 1161	Accelerator Pedal Position Signal 1 Accelerator Pedal Position Signal 1	II III	LFV LTG
40	0.5	YE/BN	331	Oil Pressure Sensor Signal	III	-
41	0.5	GN	380	A/C Refrigerant Pressure Sensor Signal	III	-
42 - 43	-	-	-	Not Occupied	-	-
44	0.35 0.5	GN/WH GN/WH	1162 1162	Accelerator Pedal Position Signal 2 Accelerator Pedal Position Signal 2	II III	LFV LTG
45	0.35 0.5	BN/RD BN/RD	1274 1274	Accelerator Pedal Position 5V Reference 2 Accelerator Pedal Position 5V Reference 2	II III	LFV LTG
46	0.35	YE	4063	Hood Status A Signal	II	-
47	0.5	VT/GN	439	Run/Crank Ignition 1 Voltage	III	-
48	0.5	VT/BU	5292	Powertrain Main Relay Fused Supply Voltage 3	III	-
49	2	VT/BU	5290	Powertrain Main Relay Fused Supply Voltage 1	I	-