Automatic Transmission Inline 20-Way Connectors

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

AT Inline 20-way Connector, Engine Side

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15444376 20-Way F Micro-Pack 100W Series (BK)
Pin	Wire Color	Circuit No.	Function
A	L-GN	1222	1-2 Shift Solenoid Valve Control
B	YE/BK	1223	2-3 Shift Solenoid Valve Control
C	OG/BK	1228	PC Solenoid Valve High Control
D	L-BU/WH	1229	PC Solenoid Valve Low Control
E	PK	1339	Ignition 1 Voltage
F	TN/WH	771	Transmission Range Signal A
G	YE	772	Transmission Range Signal B
H	GY	773	Transmission Range Signal C
J	WH	776	Transmission Range Signal P
K	BK/WH	451	Ground
L	YE/BK	1227	TFT Sensor Signal
M	TN	452	Low Reference
N-R	-	-	Not Used
S	OG/BK	1230	ISS High Signal
T	BN	418	TCC PWM Solenoid Valve Control
U	WH	1804	TCC Release Switch Signal
V	D-BU/WH	1231	ISS Low Signal
W	-	-	Not Used

AT Inline 20-way Connector, Transmission Side

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15443073 20-Way M Micro-Pack 100W Lock Assist/Seal (GY)
Pin	Wire Color	Circuit No.	Function
A	L-GN	1222	1-2 Shift Solenoid Valve Control
B	YE	1223	2-3 Shift Solenoid Valve Control
C	PU	1228	PC Solenoid Valve High Control
D	L-BU	1229	PC Solenoid Valve Low Control
E	RD	839	Ignition 1 Voltage
F	RD/BK	771	Transmission Range Signal A
G	D-GN/WH	772	Transmission Range Signal B
H	YE/BK	773	Transmission Range Signal C
J	GY/WH	776	Transmission Range Signal P
K	BK/WH	1050	Ground
L	BN	1227	TFT Sensor Signal
M	GY	452	Low Reference
N-R	-	-	Not Used
S	BK	1230	ISS High Signal
T	TN	418	TCC PWM Solenoid Valve Control
U	WH	1804	TCC Release Switch Signal
V	D-GN	1231	ISS Low Signal
W	-	-	Not Used