K71 Transmission Control Module (M3H/M3U)

WARNING: This page is about a different car, the 2022 GMC Terrain and 2022 Chevrolet Equinox. 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 Wiring Harness
OEM Connector: 34822-0223
Service Connector: 19329822
Description: 66 -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
III	Not required	Not Available	No Tool Required

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1	0.5	WH / BU	4507	Transmission Clutch H Control	II	(M3H/M3U)
2	0.5	BU	6401	Clutch Solenoid Valve B Control	II	(M3H/M3U)
3	0.5	GY / GN	6403	Clutch Solenoid Valve D Control	II	(M3H/M3U)
4	0.5	VT	4509	Transmission Clutch F Control	II	(M3H/M3U)
5 - 6	-	-	-	Not Occupied	-	-
7	0.5	YE / GN	4170	Transmission Output Shaft Speed Sensor Circuit 9V Reference	II	(M3H/M3U)
8	0.5	YE / BU	4171	Transmission Input Shaft Speed Sensor Circuit 9V Reference	II	(M3H/M3U)
9 - 12	-	-	-	Not Occupied	-	-
13	0.5	GN / VT	4510	Transmission Intermediate Speed Signal	II	(M3H/M3U)
14	0.5	GY / BU	6358	Output Speed Signal	II	(M3H/M3U)
15	0.5	GN / YE	6353	Input Speed Signal	II	(M3H/M3U)
16	-	-	-	Not Occupied	-	-
17	0.5	WH	4508	Transmission Clutch G Control	II	(M3H/M3U)
18	0.5	BN	6400	Clutch Solenoid Valve A Control	II	(M3H/M3U)
19	0.5	GY	6402	Clutch Solenoid Valve C Control	II	(M3H/M3U)
20	0.5	YE / BN	6404	Clutch Solenoid Valve E Control	II	(M3H/M3U)
21	0.5	GY / BK	5501	TCC/Clutch Select Solenoid Valve Control	II	(M3H/M3U)
22	0.5	VT / BK	7553	Park Lock Solenoid Actuator Control	II	(M3H/M3U)
23	0.5	WH	1971	Transmission Oil Level Sensor Signal	II	(M3H/M3U)
24	0.5	WH / GY	4578	Surge Accumulator Solenoid Valve Low Side Control	II	KL9+LYX+(M3H/M3U)
25 - 27	-	-	-	Not Occupied	-	-
28	0.5	BK / BN	586	Transmission Fluid Temperature Sensor Low Reference	II	(M3H/M3U)
29 - 30	-	-	-	Not Occupied	-	-
31	0.5	GN / VT	4621	Engine Control Module LIN Bus 1	II	M3U+LYX+(M3H/M3U)-NUG
32	-	-	-	Not Occupied	-	-
33	0.5	GN / GY	6387	Transmission High Side Driver 1 Control	II	KL9+(M3H/M3U)
34	-	-	-	Not Occupied	-	-
35	0.5	VT / GN	439	Run/Crank Ignition 1 Voltage	II	(M3H/M3U)
36	-	-	-	Not Occupied	-	-
37	0.5	BU	2500	High Speed GMLAN Serial Data [+] 1	II	LYX+M3U
38	0.5	WH	2501	High Speed GMLAN Serial Data [-] 1	II	LYX+M3U
39 - 48	-	-	-	Not Occupied	-	-
49	0.5	GY / BN	6388	Transmission High Side Driver 2 Control	II	(M3H/M3U)
50	-	-	-	Not Occupied	-	-
51	0.5	VT / YE	5985	Accessory Wake-Up Serial Data	II	M3H/M3U
52	-	-	-	Not Occupied	-	-
53	0.5	BU	2500	High Speed GMLAN Serial Data [+] 1	II	M3H/M3D/M3U
54	0.5	WH	2501	High Speed GMLAN Serial Data [-] 1	II	M3H/M3D/M3U
55 - 58	-	-	-	Not Occupied	-	-
59	0.5	VT / WH	6319	Electronic Transmission Range Select Out of Park Switch 2 Signal	II	(M3H/M3U)
60	0.5	WH / BK	3705	Electronic Transmission Range Select Switch Analog Signal 2	II	(M3H/M3U)
61	0.5	WH / YE	6317	Electronic Transmission Range Select Out of Park Switch Signal	II	(M3H/M3U)
62	0.5	BN	3706	Electronic Transmission Range Select Switch Analog Signal 1	II	(M3H/M3U)
63	0.5	BN / WH	585	Transmission Fluid Temperature Sensor Signal	II	(M3H/M3U)
64	0.5	GN / YE	5724	Ignition Mode Switch Mode Control	III	M3D
65	1.5	BK / WH	151	Signal Ground	I	LYX+(M3H/M3U)
66	1.5	RD / GN	2173	12V Regulated Supply Voltage 2	I	KL9+(M3H/M3U)