K20 Engine Control Module X2 (LF4)

WARNING: This page is about a different car, the 2021 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of GENERAL MOTORS COMPANY

Connector Part Information

Harness Type: Engine
OEM Connector: 13529937
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	19351723	J-35616-64B (LT BU)	J-38125-213

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1	0.5	GN / YE	3212	HO2S Heater Low Control Bank 2 Sensor 1	II	-
2	-	-	-	Not Occupied	-	-
3	0.5	BK / YE	548	Engine Control Sensors Low Reference 1	II	-
4 - 5	-	-	-	Not Occupied	-	-
6	0.5	BU / WH	3338	Transmission Internal Mode Switch Mode Control X	II	-
7	0.5	GN / WH	4622	Engine Control Module LIN Bus 2	II	-
8	0.5	GN / VT	4621	Engine Control Module LIN Bus 1	II	-
9 - 12	-	-	-	Not Occupied	-	-
13	0.5	BU / GY	2125	Ignition Control 5	II	-
14 - 16	-	-	-	Not Occupied	-	-
17	0.5	GY / WH	3113	HO2S Heater Low Control Bank 1 Sensor 1	II	-
18 - 28	-	-	-	Not Occupied	-	-
29	0.5	BN / BU	2126	Ignition Control 6	II	-
30	0.5	BK / GY	2130	Ignition Control Low Reference Bank 2	II	-
31 - 32	-	-	-	Not Occupied	-	-
33	0.5	WH / BN	3223	HO2S Heater Low Control Bank 2 Sensor 2	II	-
34 - 35	-	-	-	Not Occupied	-	-
36	0.5	GN	3060	Turbocharger Bypass Solenoid Valve Control Bank 1	II	-
37	0.5	VT / BU	5294	Powertrain Main Relay Fused Supply Voltage 5	II	-
38	0.5	BN / WH	585	Transmission Fluid Temperature Sensor Signal	II	-
39	0.5	WH / RD	480	Engine Control Vehicle Sensors 5 Volt Reference 1	II	-
40	-	-	-	Not Occupied	-	-
41	0.5	GN / BN	5298	Exhaust Camshaft Position Sensor 2 Voltage Reference	II	-
42	0.5	VT / BU	5274	Exhaust Camshaft Position Sensor 2	II	-
43	0.5	BK / BN	5299	Exhaust Camshaft Position Sensor Low Reference 2	II	-
44	0.5	BK / GY	6756	Camshaft Position Actuator Solenoid Valve Z Low Reference	II	-
45	0.5	BK / BU	6755	Camshaft Position Actuator Solenoid Valve Y Low Reference	II	-
46	0.5	YE / BU	3221	HO2S Low Signal Bank 2 Sensor 2	II	-
47	0.5	VT / GN	3220	HO2S High Signal Bank 2 Sensor 2	II	-
48 - 49	-	-	-	Not Occupied	-	-
50	0.5	BK / GY	2303	Knock Sensor Low Reference 2	II	-
51	0.5	BK / YE	1716	Knock Sensor Low Reference 1	II	-
52	0.75	BN / WH	582	Throttle Actuator Close Control	II	-
53	0.5	GY / WH	3122	HO2S Heater Low Control Bank 1 Sensor 2	II	-
54	-	-	-	Not Occupied	-	-
55	0.5	BU	3061	Turbocharger Bypass Solenoid Valve Control Bank 2	II	-
56 - 58	-	-	-	Not Occupied	-	-
59	0.5	BU / RD	460	Engine Control Sensors 5 Volt Reference 1	II	-
60	-	-	-	Not Occupied	-	-
61	0.5	WH / BU	5302	Intake Camshaft Position Sensor 2 Voltage Reference	II	-
62	0.5	YE	5276	Intake Camshaft Position Sensor 2	II	-
63	0.5	BK / VT	5303	Intake Camshaft Position Sensor Low Reference 2	II	-
64	0.5	GN / BN	5283	Exhaust Camshaft Position Actuator Solenoid Valve 2	II	-
65	0.5	GN	5272	Intake Camshaft Position Actuator Solenoid Valve 2	II	-
66	0.5	WH / YE	3121	HO2S Low Signal Bank 1 Sensor 2	II	-
67	0.5	VT / BU	3120	HO2S High Signal Bank 1 Sensor 2	II	-
68 - 69	-	-	-	Not Occupied	-	-
70	0.5	WH / GY	1876	Knock Sensor 2 Signal	II	-
71	0.5	VT / GY	496	Knock Sensor 1 Signal	II	-
72	0.75	YE	581	Throttle Actuator Open Control	II	-
73	2.5	BK / WH	6151	Engine Control Module Ground	I	-