Automatic Transmission Inline 20-Way Connector

AT Inline Harness Connector, Engine Side

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12160493 20-Way F Micro-Pack 100 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	Pressure Control (PC) Solenoid Valve High Control
D	LT BLU /WHT	1229	PC Solenoid Valve Low Control
E	PNK	1039	Ignition 1 Voltage
F-K	-	-	Not Used
L	YEL/BLK	1227	Transmission Fluid Temperature (TFT) Sensor Signal
M	WHT/BLK	2762	Low Reference
N	-	-	Not Used
P	RED	1226	TFP Switch Signal C
R	DK BLU	1225	TFP Switch Signal B
S	RED/BLK	1230	Input Speed Sensor (ISS) High Signal
T	BRN	418	Torque Convertor Clutch Pulse Width Modulated (TCC PWM) Solenoid Valve Control
U	YEL	657	TCC Release Switch Signal
V	DK BLU /WHT	1231	ISS Low Signal
W	-	-	Not Used

AT Inline Harness Connector, Transmission Side

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12160782 20-Way M Micro-Pack 100 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	Pressure Control (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	Transmission Fluid Temperature (TFT) Sensor Signal
M	GRY	452	Low Reference
N	-	-	Not Used
P	ORN	1226	TFP Switch Signal C
R	DK BLU	1225	TFP Switch Signal B
S	BLK	1230	Input Speed Sensor (ISS) High Signal
T	TAN	418	Torque Convertor Clutch Pulse Width Modulated (TCC PWM) Solenoid Valve Control
U	WHT	1804	TCC Release Switch Signal
V	DK GRN	1231	ISS Low Signal
W	-	-	Not Used