AT Inline 20-way Connector End View, Transmission Side

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15443073 20-Way M Micro-Pack 100W Lock Assist/Seal (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	RED/BLK	771	Transmission Range Signal A
G	DK GRN/WHT	772	Transmission Range Signal B
H	YEL/BLK	773	Transmission Range Signal C
J	GRY/WHT	776	Transmission Range Signal P
K	BLK/WHT	1050	Ground
L	BRN	1227	TFT Sensor Signal
M	GRY	452	Low Reference
N-R	-	-	Not Used
S	BLK	1230	AT ISS High Signal
T	TAN	418	TCC PWM Solenoid Valve Control
U	WHT	1804	TCC Release Switch Signal
V	DK GRN	1231	AT ISS Low Signal
W	-	-	Not Used