Transmission Control Module (TCM) Connector End View

Transmission Control Module (TCM) Connector End View/Part Information/Terminal Identification - A

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		AMP 1318756-1 24-Way F 025/090 SER 26POS PLUG ASSY (WH)
Pin	Wire Color	Circuit No.	Function
1	BK/WH	51	Ground
2	YE/BK	1227	Low Reference
3	-	-	Not Used
4	RD	1226	Pressure Control Solenoid Control
5	D-BU	1225	Torque Converter Clutch Solenoid Control
6	PK	839	Ignition 1 Voltage
7	YE	710	CAN Serial Data Low
8-10	-	-	Not Used
11	PU	898	Transmission Fluid Temperature Sensor Signal
12	OG/BK	586	Transmission Fluid Temperature Sensor Low Reference
13	-	-	Not Used
14	PK	1224	Timing Valve Control
15	YE/BK	1223	Shift Solenoid 2 Valve Control
16	L-GN	1222	Shift Solenoid 1 Valve Control
17	PU	1807	CAN Serial Data High
18-22	-	-	Not Used
23	BK/WH	51	Ground
24	OG	440	Battery Positive Voltage

Transmission Control Module (TCM) Connector End View/Part Information/Terminal Identification B

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		AMP 1318757-1 26-Way F 025/090 SER 24POS PLUG ASSY (WH)
Pin	Wire Color	Circuit No.	Function
1	D-GN/WH	2383	Park/Neutral Position (PNP) Switch Reverse Signal
1	L-GN	24	Back-Up Lamps Supply Voltage
2	-	-	Not Used
3	YE	1481	Hold Motor Indicator Control
4	D-GN/WH	1135	Transmission Hold Signal
5	-	-	Not Used
6	D-BU/WH	1296	Input Shaft Speed (ISS) Sensor High Signal
7	WH	2377	Park/Neutral Position (PNP) Switch Drive Signal
8	YE	2381	Park/Neutral Position (PNP) Switch Neutral Signal
9-15	-	-	Not Used
16	YE/BK	1297	Input Shaft Speed (ISS) Sensor Low Signal
17	-	-	Not Used
18	GY	2380	Park/Neutral Position (PNP) Switch Low Gear Signal
19	PK	2384	Park/Neutral Position (PNP) Switch 2nd Gear Signal
20	D-GN/YE	2382	Park/Neutral Position (PNP) Switch Park Signal
21	-	-	Not Used
22	L-BU	20	Stop Lamp Supply Voltage/Stop Lamp Switch Signal
23	D-BU	2051	Serial Data
24	-	-	Not Used
25	D-GN/WH	817	Vehicle Speed Signal
26	-	-	Not Used