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.
Diagnostic Code Index
2009 GMC Canyon 4D Pickup, 2.9 9SECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2008 Isuzu i-370, 2008 Isuzu i-290, 2008 GMC Canyon, and 2008 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B0827 | B0827: Traction Control Switch Off Indicator Circuit Low |
| DTC B0828 | B0828: Traction Control Switch Off Indicator Circuit High |
| DTC B2745 | B2745 00: Traction Control Switch Circuit |
| DTC C0035 | C0035: Left Front Wheel Speed Sensor Circuit or Front Sensor Supply Voltage Circuit |
| DTC C0040 | C0040: Right Front Wheel Speed Sensor Circuit |
| DTC C0055 | C0055: Rear Wheel Speed Sensor Circuit C0055 5A: Rear Wheel Speed Sensor Circuit Erratic Signal |
| DTC C0110 | C0110 00: Pump Motor Circuit |
| DTC C0191 | C0191 00: Four Wheel Drive (4WD) Reference Accelerometer Circuit |
| DTC C0201 | C0201 00: Antilock Brake System (ABS) Enable Relay Contact Circuit |
| DTC C0220-C0229 | C0220 00: Left Front Antilock Brake System (ABS) Channel in Release Too Long C0221 00: Right Front Antilock Brake System (ABS) Channel in Release Too Long C0222 00: Rear Antilock Brake System (ABS) Channel in Release Too Long C0223 00: Left Front Antilock Brake (ABS) Channel Motor Free Spins C0224 00: Right Front Antilock Brake (ABS) Channel Motor Free Spins C0225 00: Rear Antilock Brake System (ABS) Channel Motor Free Spins C0226 00: Left Front Traction Control System (TCS) Channel Will Not Move C0227 00: Right Front Traction Control System (TCS) Channel Will Not Move C0228 00: Left Rear Antilock Brake System (ABS) Channel in Release Too Long C0229 00: Right Rear Antilock Brake System (ABS) Channel in Release Too Long |
| DTC C0240 or P0856 | C0240: PCM Traction Control Not Allowed P0856: Traction Control Torque Request Circuit |
| DTC C0244 or P1689 | C0244 00: Pulse Width Modulated (PWM) Delivered Torque P1689 00: Traction Control Delivered Torque Output Circuit |
| DTC C0245 | C0245: Wheel Speed Sensor Frequency Error |
| DTC C0267 or C0268 and C067 or C068 | C0268: Class 2 Data Error Reported |
| DTC C0550 | C0550: Electronic Control Unit (ECU) Performance |
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.