Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Throttle Actuator Control (TAC) Module Connector End View
2005 Pontiac Montana SV6 AWDSECTION Throttle Actuator Control (TAC) Module Connector End View
Engine Controls Connector End Views
Connector Part InformationÂ
|
Terminal Part InformationÂ
|
Throttle Actuator Control (TAC) Module
| 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 | D-GN | 389 | Vehicle Speed Signal |
| 5 | - | - | Not Used |
| 6 | L-GN | 526 | Stop Lamp Supply Voltage |
| 7 | OG/BK | 1061 | UART Serial Data (Secondary) |
| 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 | TN | 800 | UART Serial Data (Primary) |
| 17 | BK/WH | 451 | Ground |
| 18 | PK | 39 | Ignition 1 Voltage |
| 19-20 | - | - | Not Used |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.