X321 Front Seat Wiring Harness - Driver to Body Wiring Harness

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of GENERAL MOTORS COMPANY	Courtesy of GENERAL MOTORS COMPANY
Connector Part Information Harness Type: Front Seat Wiring Harness - Driver OEM Connector: E20401100 Service Connector: Service by Harness - Description: 55-Way F 1.2 OCS, 2.8, 6.3 CTS Series, Sealed (BK)	Connector Part Information Harness Type: Body Wiring Harness OEM Connector: 35205190 Service Connector: 84727364 Description: 55-Way M 1.2 OCS, 2.8, 6.3 CTS Series, Sealed (BK)

Terminal Part Information

Terminal Type ID	Terminated Lead	Diagnostic Test Probe	Terminal Removal Tool
I	Not required	J-35616-16 (LT GN)	No Tool Required
II	Not required	No Tool Required	No Tool Required
III	84847992	J-35616-32 (OG)	J-38125-36
IV	84867140	J-35616-13 (BU)	J-38125-215A
V	84867141	J-35616-13 (BU)	J-38125-215A

Pin	Size	Color	Circuit	Terminal Type ID	Option	Function	Pin	Size	Color	Circuit	Terminal Type ID	Option
1	-	-	-	-	-	Not Occupied	1	-	-	-	-	-
2	-	-	-	-	-	-	2	1	BK	DUMMY2	V	-
3	0.35	GN / WH	7530	I	-	Driver Seat Adjuster Memory Module LIN Bus 1	3	0.5	GN / WH	7530	IV	-
4	0.5 0.75	RD / WH RD / WH	2040 2040	I I	A45 -A45	Battery Positive Voltage Battery Positive Voltage	4	0.35 0.35	RD / WH RD / WH	2040 2040	IV IV	A45 -A45
5	0.35	WH	615	I	-	Seat Memory Switch Signal 1	5	0.35	WH	615	IV	-
6	0.35	BU / GN	614	I	-	Seat Memory Switch Set Signal	6	0.35	BU / GN	614	IV	-
7 - 9	-	-	-	-	-	Not Occupied	7 - 9	-	-	-	-	-
10	0.5	BK / YE	2080	I	-	Driver Heated Seat Thermistor Low Reference	10	0.5	BK / YE	2080	IV	-
11	0.5	YE / GY	2079	I	-	Driver Seat Heating Temperature Sensor Signal	11	0.35	YE / GY	2079	IV	-
12	0.75	GN / GY	3758	II	-	Driver Seat Adjuster Memory Module LIN Bus 2	12	1	BK	DUMMY2	V	-
13	2.5	RD / YE	5040	I	-	Battery Positive Voltage	13	2.5	RD / YE	5040	III	-
14	-	-	-	-	-	Not Occupied	14	-	-	-	-	-
15	0.75	BN / VT	2077	I	-	Driver Seat Heating Element Control	15	0.75	BN / VT	2077	IV	-
16	0.75	BN / BK	2078	I	-	Driver Seat Heating Element Low Reference	16	0.75	BN / BK	2078	IV	-
17	-	-	-	-	-	Not Occupied	17	-	-	-	-	-
18	0.5	BU	2425	I	-	Driver Seat Back Heating Temperature Sensor Signal	18	0.35	BU	2425	IV	-
19	-	-	-	-	-	Not Occupied	19	-	-	-	-	-
20	0.5	GN / VT	5906	I	-	Driver Seat Blower Motor Control 1	20	0.35	GN / VT	5906	IV	-
21	0.5	VT / GY	539	I	-	Run/Crank Ignition 1 Voltage	21	0.35	VT / GY	539	IV	-
22	0.5	YE / BN	3037	I	-	Driver Seat Left Rear Haptic Movement Motor Control	22	0.5	YE / BN	3037	IV	-
23	0.5	BN	3038	I	-	Driver Seat Right Rear Haptic Movement Motor Control	23	0.5	BN	3038	IV	-
24	-	-	-	-	-	Not Occupied	24	-	-	-	-	-
25	0.35	BU / VT	4101	I	-	AUTOSAR CAN Bus [+] 4 Serial Data	25	0.35	BU / VT	4101	IV	-
26	0.35	WH	4100	I	-	AUTOSAR CAN Bus [-] 4 Serial Data	26	0.35	WH	4100	IV	-
27 - 31	-	-	-	-	-	Not Occupied	27 - 31	-	-	-	-	-
32	0.5	OG / BN	238	I	-	Driver Seat Belt Switch Signal	32	0.35	OG / BN	238	IV	-
33	0.5	BK / OG	1363	I	-	Driver Seat Belt Switch Low Reference	33	0.35	BK / OG	1363	IV	-
34	-	-	-	-	-	Not Occupied	34	-	-	-	-	-
35	0.5	OG / BU	4962	II	-	Driver Seat Back Air Bag High Control	35	0.5	OG / BU	4962	IV	-
36	0.5	BK / OG	4963	II	-	Driver Seat Back Air Bag Low Control	36	0.5	BK / OG	4963	IV	-
37 - 38	-	-	-	-	-	Not Occupied	37 - 38	-	-	-	-	-
39	0.5	YE / BU	4783	I	-	Rear Footwell Accent Lighting Control	39	0.5	YE / BU	4783	IV	-
40 - 45	-	-	-	-	-	Not Occupied	40 - 45	-	-	-	-	-
46	0.35	BU / VT	4101	I	-	AUTOSAR CAN Bus [+] 4 Serial Data	46	0.5	BU / VT	4101	IV	-
47	0.35	WH	4100	I	-	AUTOSAR CAN Bus [-] 4 Serial Data	47	0.5	WH	4100	IV	-
48	-	-	-	-	-	Not Occupied	48	-	-	-	-	-
49	0.5	GY	157	I	-	Interior Lamp Control	49	0.5	GY	157	IV	-
50 - 55	-	-	-	-	-	Not Occupied	50 - 55	-	-	-	-	-