Automatic Transmission Related Connectors

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Automatic Transmission Input Shaft Speed (AT ISS) Sensor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12162194 ASM 2F M/P 150.2 P2S SLD (BLK)
Pin	Wire Color	Circuit No.	Function
A	RED/BLK	1230	Transmission Input Speed Sensor Signal High
B	DK BLU/WHT	1231	Transmission Input Speed Sensor Signal Low

Automatic Transmission Output Shaft Speed (AT OSS) Sensor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12162194 ASM 2F M/P 150.2 P2S SLD (BLK)
Pin	Wire Color	Circuit No.	Function
A	PPL/WHT	821	Transmission Output Speed Sensor Signal High
B	LT GRN/BLK	822	Transmission Output Speed Sensor Signal Low

Transmission Range Switch, Wiring Harness Side

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15416722 BLK ASM Conn 12 F GT
Pin	Wire Color	Circuit No.	Function
1	DK GRN	1433	Clutch Start Switch Signal
2-3	-	-	Not Used
4	YEL	772	Transmission Range Switch Signal B
5	BLK/WHT	771	Transmission Range Switch Signal A
6	GRY	773	Transmission Range Switch Signal C
7	BLK/WHT	451	Ground
8	WHT	776	Transmission Range Switch Signal P
9	LT GRN	275	Park Neutral Position Switch Signal
10	GRY	1524	Back-Up Lamp Supply Voltage
11	PNK	839	Ignition 1 Voltage
12	PPL	639	Ignition 1 Voltage

Tow/Haul Switch, Column Wiring Harness Side

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12047663 Conn 2M M/P 150 (NAT)
Pin	Wire Color	Circuit No.	Function
A	LT BLU	553	Tow/Haul Switch Input
B	BLK	1850	Tow/Haul Switch Ground