K71 Transmission Control Module

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: 13965710
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

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
1	0.5 0.5	WH / BU VT / WH	4507 422	Transmission Clutch H Control Torque Converter Clutch Solenoid Valve Control	II II	M5N MHU/MQA
2	0.5 0.5	BU GY / GN	6401 6403	Clutch Solenoid Valve B Control Clutch Solenoid Valve D Control	II II	M5N MHU/MQA
3	0.5 0.5	GN / WH WH / BU	1530 4507	Transmission Line Pressure Control Solenoid Valve Control Transmission Clutch H Control	II II	M5N MHU/MQA
4	0.5	WH	4508	Transmission Clutch G Control	II	-
5 - 6	-	-	-	Not Occupied	-	-
7	0.5	YE / GN	4170	Transmission Output Shaft Speed Sensor Circuit 9V Reference	II	-
8	0.5	YE / BU	4171	Transmission Input Shaft Speed Sensor Circuit 9V Reference	II	-
9 - 11	-	-	-	Not Occupied	-	-
12	0.5	GN / YE	6353	Input Speed Signal	II	-
13	0.5	GN / VT	4510	Transmission Intermediate Speed Signal	II	-
14	0.5	GY / BU	6358	Output Speed Signal	II	-
15	0.5	BN / WH	6254	Transmission Input Speed Sensor Signal	II	-
16	-	-	-	Not Occupied	-	-
17	0.5 0.5	WH GN / WH	4508 1530	Transmission Clutch G Control Transmission Line Pressure Control Solenoid Valve Control	II II	M5N MHU/MQA
18	0.5 0.5	BN YE / BN	6400 6404	Clutch Solenoid Valve A Control Clutch Solenoid Valve E Control	II II	M5N MHU/MQA
19	0.5	GY	6402	Clutch Solenoid Valve C Control	II	-
20	0.5 0.5	VT / WH VT	422 4509	Torque Converter Clutch Solenoid Valve Control Transmission Clutch F Control	II II	M5N MHU/MQA
21	0.5 0.5	GN / WH WH / YE	6380 2159	Torque Converter Clutch Enable Solenoid Valve A Control Park Inhibit Solenoid Assembly Control	II II	M5N MHU/MQA
22	0.5 0.5	YE / BN GN / BK	6210 7819	Torque Converter Clutch Enable Solenoid Valve B Control Default Disable Solenoid Control	II II	M5N MHU/MQA
23	-	-	-	Not Occupied	-	-
24	0.5 0.5	WH / GY GN / WH	4578 2968	Surge Accumulator Solenoid Valve Low Side Control Transmission Auxiliary Fluid Pump Control	II II	M5N MHU/MQA
25 - 27	-	-	-	Not Occupied	-	-
28	0.5	BK / BN	586	Transmission Fluid Temperature Sensor Low Reference	II	-
29 - 30	-	-	-	Not Occupied	-	-
31	0.5	GN / VT	4621	Engine Control Module LIN Bus 1	II	-
32	-	-	-	Not Occupied	-	-
33	0.5 0.5	VT / BU GN / GY	5294 6387	Powertrain Main Relay Fused Supply Voltage 5 Transmission High Side Driver 1 Control	II II	M5N MHU/MQA
34	-	-	-	Not Occupied	-	-
35	0.5	VT / BK	2139	Run/Crank Ignition 1 Voltage	II	-
36	-	-	-	Not Occupied	-	-
37	0.5	BU / YE	4979	AUTOSAR CAN Bus [+] 2 Serial Data	II	-
38	0.5	WH	4978	AUTOSAR CAN Bus [-] 2 Serial Data	II	-
39 - 48	-	-	-	Not Occupied	-	-
49	0.5	GY / BN	6388	Transmission High Side Driver 2 Control	II	-
50 - 52	-	-	-	Not Occupied	-	-
53	0.5	BU / YE	4979	AUTOSAR CAN Bus [+] 2 Serial Data	II	-
54	0.5	WH	4978	AUTOSAR CAN Bus [-] 2 Serial Data	II	-
55 - 58	-	-	-	Not Occupied	-	-
59	0.5	VT / WH	6319	Electronic Transmission Range Select Out of Park Switch 2 Signal	II	-
60	-	-	-	Not Occupied	-	-
61	0.5	WH / YE	6317	Electronic Transmission Range Select Out of Park Switch Signal	II	-
62	0.5	BU / BK	6315	Electronic Transmission Range Select Pressure Switch Signal	II	-
63	0.5	BN / WH	585	Transmission Fluid Temperature Sensor Signal	II	-
64	0.5	BU / WH	3338	Transmission Internal Mode Switch Mode Control X	II	-
65	1.5	BK / WH	6251	Transmission Control Module Ground	I	-
66	1.5	RD / GN	1840	Battery Positive Voltage	I	-