Throttle Actuator Control (TAC) Module (L26)

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Throttle Actuator Control (TAC) Module (L26) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1	0.35 TN	1274	5-Volt Reference
2	0.35 PU	1272	Low Reference
3	0.35 L-BU	1162	APP Sensor 2 Signal
4	0.35 D-GN	389	Vehicle Speed Signal
5	-	-	Not Used
6	0.35 WH	17	Stop Lamp Switch Signal
7	0.35 OG/BK	1061	UART Serial Data Secondary
8	0.5 TN/WH	551	Ground
9-10	-	-	Not Used
11	0.35 D-BU	1161	APP Sensor 1 Signal
12	0.35 BN	1271	Low Reference
13	0.35 WH/BK	1164	5-Volt Reference
14-15	-	-	Not Used
16	0.35 TN	800	UART Serial Data Primary
17	0.5 TN/WH	551	Ground
18	0.35 PK	39	Ignition 1 Voltage
19-20	-	-	Not Used

Connector Part Information

OEM: 15355368
Service: 15355368
Description: 20-Way F GT 150 Series Sealed (GY)

Terminal Part Information

Pins: 1-4, 6-8, 11-13, 16-18
Terminal/Tray: 15326267/19
Core/Insulation Crimp: Pins 1-4, 6-8, 11-13, 16, 17 - E/4
Core/Insulation Crimp: Pins 18 - E/1
Release Tool/Test Probe: 15315247/J-35616-2A (GY)