Automatic Transmission Inline 20-Way Connector

AT Inline 20-Way Connector, Engine Side

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12191511 20-Way F Micro-Pack 100W Series (GRY)
Pin	Wire Color	Circuit No.	Function
A	LT GRN	1222	1-2 Shift Solenoid Valve Control
B	YEL/BLK	1223	2-3 Shift Solenoid Valve Control
C	RED/BLK	1228	PC Solenoid Valve High Control
D	LT BLU/WHT	1229	PC Solenoid Valve Low Control
E	PNK	1020	Ignition 0 Voltage
F-K	-	-	Not Used
L	YEL/BLK	1227	TFT Sensor Signal
M	BLK	2762	Low Reference
N	PNK	1224	Transmission Fluid Pressure Switch Signal A
P	RED	1226	Transmission Fluid Pressure Switch Signal C
R	DK BLU	1225	Transmission Fluid Pressure Switch Signal B
S	WHT	687	3-2 Shift Solenoid Valve Control
T	TAN/BLK	422	TCC Solenoid Valve Control
U	BRN	418	TCC PWM Solenoid Valve Control
V-W	-	-	Not Used

AT Inline 20-Way Connector, Transmission Side

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12160782 20-Way M Micro-Pack 100W Series (GRY)
Pin	Wire Color	Circuit No.	Function
A	LT GRN	1222	1-2 Shift Solenoid Valve Control
B	YEL	1223	2-3 Shift Solenoid Valve Control
C	PPL	1228	PC Solenoid Valve High Control
D	LT BLU	1229	PC Solenoid Valve Low Control
E	RED	839	Ignition 1 Voltage
F-K	-	-	Not Used
L	BRN	1227	TFT Sensor Signal
M	GRY	452	Low Reference
N	PNK	1224	Transmission Fluid Pressure Switch Signal A
P	ORN	1226	Transmission Fluid Pressure Switch Signal C
R	DK BLU	1225	Transmission Fluid Pressure Switch Signal B
S	WHT	687	3-2 Shift Solenoid Valve Control
T	BLK	422	TCC Solenoid Valve Control
U	TAN	418	TCC PWM Solenoid Valve Control
V-W	-	-	Not Used