Transmission Control Module (TCM) Connector End View, Engine Side - 5.3L

Fig 1: TCM (Engine Side) Connector End View (5.3L)

Courtesy of GENERAL MOTORS CORP.

TCM (Engine Side) Connector Part Information (5.3L)

Connector Part Information  OEM: 15476993 Service: Description: 49-Way F Micro-64 GT 280 Series Sealed (BK)

Terminal Part Information  Terminal/Tray: Core/Insulation Crimp: Release Tool/Test Probe:

TCM (Engine Side) Connector Terminal Identification (5.3L)

Pin	Wire Color	Circuit No.	Function
1	BN	418	Torque Converter Clutch Pulse Width Modulated (TCC PWM) Solenoid Valve Control
2	L-GN	1222	1-2 Shift Solenoid (SS) Valve Control
3	RD/BK	1230	Input Speed Sensor (ISS) High Signal
4	-	-	Not Used
5	RD	381	Vehicle Speed Signal
6	D-GN	2362	High Speed GMLAN Serial Data Bus
7	YE	2361	High Speed GMLAN Serial Data Bus
8	-	-	Not Used
9	WH	1804	TCC Release Switch Signal
10	YE	1996	Remote Shift Selector Signal
11	BN	1141	Ignition 3 Voltage
12-15	-	-	Not Used
16	PU	401	VSS Low Signal
17	L-BU/WH	1229	Pressure Control (PC) Solenoid Valve Low Control
18-19	-	-	Not Used
20	YE/BK	1223	2-3 Shift Solenoid Valve Control
21-22	-	-	Not Used
23	GY	773	Transmission Range Signal C
24-25	-	-	Not Used
26	D-BU/WH	1231	ISS Low Signal
27-28	-	-	Not Used
29	BK/WH	771	Transmission Range Signal A
30	BK	2762	Low Reference
31	PK	1339	Ignition 1 Voltage
32	OG	540	Battery Positive Voltage
33-34	-	-	Not Used
35	YE/BK	1227	TFT Sensor Signal
36	-	-	Not Used
37	TN	2501	High Speed GMLAN Serial Data Bus -
38	TN/WH	2500	High Speed GMLAN Serial Data Bus +
39	WH	776	Transmission Range Signal P
40	RD/BK	1228	PC Solenoid Valve High Control
41	YE	400	VSS High Signal
42	WH	17	Stop Lamp Switch Signal
43-45	-	-	Not Used
46	YE	772	Transmission Range Signal B
47-48	-	-	Not Used
49	BK/WH	251	Ground