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Throttle Actuator Control (TAC) Module (L26)

Fig 1: Throttle Actuator Control (TAC) Module (L26) Connector End View
GM1243581Courtesy of GENERAL MOTORS CORP.
Throttle Actuator Control (TAC) Module (L26)

Pin Wire Color Circuit No. 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 0.5 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 0.8 PK 39 Ignition 1 Voltage
19-20 - - Not Used
Connector Part Information 
  • OEM: 15355368
  • Service: 15355368
  • Description: 20-Way F GT 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)