Throttle Actuator Control (TAC) Module Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15355368 20-Way F Global Terminal 150 Series Sealed (GY)
Pin	Wire Color	Circuit No.	Function
1	TN	1274	5-Volt Reference
2	PU	1272	Low Reference
3	L-BU	1162	APP Sensor 2 Signal
4	BN	818	Vehicle Speed Signal
5	-	-	Not Used
6	WH	17	Stop Lamp Switch Signal
7	TN	800	UART Serial Data (Primary)
8	BK/WH	451	Ground
9-10	-	-	Not Used
11	D-BU	1161	APP Sensor 1 Signal
12	BN	1271	Low Reference
13	WH/BK	1164	5-Volt Reference
14-15	-	-	Not Used
16	OG/BK	1061	UART Serial Data (Secondary)
17	BK/WH	451	Ground
18	PK/BK	5290	Ignition 1 Voltage
19-20	-	-	Not Used