APPLIES TO: This simplified TAC throttle body circuit wiring diagram applies to the following vehicles:
- 2.8L Chevrolet Colorado: 2004, 2005, 2006.
- 2.8L GMC Canyon: 2004, 2005, 2006.
The following tutorial will help you test the electronic throttle body:
You can find the APP sensor assembly circuit wiring diagram here:
Electronic Throttle Body Terminal Pin Out Chart
| Pin | Wire Color | Description |
|---|---|---|
| A | Dark green (DK GRN) | TPS 1 Signal |
| B | Light blue with black stripe (LT BLU/BLK) | 5 Volts (TPS 2) |
| C | Black (BLK) | Ground (TPS 1) |
| D | Purple (PPL) | TPS 2 Signal |
| E | Yellow (YEL) | Throttle Actuator Motor Control |
| F | Brown (BRN) | Throttle Actuator Motor Control |
| G | Grey (GRY) | 5 Volts (TPS 1) |
| H | Black with white stripe (BLK/WHT) | Ground (TPS 2) |
More 2.8L Chevrolet Colorado (GMC Canyon) Tutorials
You can find a complete list of 2.8L Chevrolet Colorado (GMC Canyon) tutorials and wiring diagrams here:
Here's a list of articles, you'll find there:
- How To Test The Electronic Throttle Body (2004-2006 2.8L Chevrolet Colorado, GMC Canyon).
- How To Test Engine Compression (2004-2006 2.8L Chevrolet Colorado, GMC Canyon).
- APP Sensor Tests (2004-2006 2.8L Chevrolet Colorado, GMC Canyon).
- Blown Head Gasket Tests (2004-2006 2.8L Chevrolet Colorado, GMC Canyon).
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