Transmission Control Module (TCM) Connector End View C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15326595 Siemens Socket Header 21-way (BU)
Pin	Wire Color	Circuit No.	Function
1	PK	839	Ignition 1 Voltage
2	-	-	Not Used
3	PK	839	Ignition 1 Voltage
4	RD/BK	1228	PC Solenoid Valve High Control
5	BN	418	TCC PWM Solenoid Valve Control
6	OG	480	Battery Positive Voltage
7-8	-	-	Not Used
9	D-BU	1225	Transmission Fluid Pressure Switch Signal B
10	RD	1226	Transmission Fluid Pressure Switch Signal C
11-13	-	-	Not Used
14	BK/WH	771	Transmission Range Signal A
15	YE	772	Transmission Range Signal B
16	GY	773	Transmission Range Signal C
17-19	-	-	Not Used
20	L-BU/WH	1229	PC Solenoid Valve Low Control
21	YE/BK	1223	2-3 Shift Solenoid Valve Control