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.
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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1673 (POWER STEERING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
Diagnostic Code Index
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC C0000 | C0000 71: Vehicle Speed Information Circuit |
| DTC C0176 (without HP5) | C0176 54: System Thermal Error Temperature High |
| DTC C0176 (with HP5) | C0176 54: System Thermal Error Temperature High |
| DTC C044A | C044A 71: Steering System Engine Speed Signal Circuit Invalid Serial Data Received |
| DTC C0460 | C0460 00: Steering Position Sensor |
| DTC C0475 (without HP5) | C0475 00: Electric Steering Motor Circuit |
| DTC C0475 (with HP5) | C0475 00: Electric Steering Motor Circuit C0475 59: Electric Steering Motor Circuit/Component Protection Time-out |
| DTC C047A | C047A 00: Electric Steering Motor Position Sensor Circuit |
| DTC C0545 (without HP5) | C0545 00: Steering Wheel Torque Input Sensor |
| DTC C0545 (with HP5) | C0545 00: Steering Wheel Torque Input Sensor |
| DTC C0561 | C0561 71: System Disabled Information Stored Invalid Serial Data Received |
| DTC C0565 | C0565 5A: Vehicle Identification Number Not Plausible |
| DTC C0569 | C0569 3A: System Configuration Error Incorrect Component Installed |
| DTC C056D (without HP5) | C056D 39: ECU Hardware Performance Internal Electronic Failure |
| DTC C056D (with HP5) | C056D 34: ECU Hardware Performance RAM Failure C056D 35: ECU Hardware Performance ROM Failure C056D 36: ECU Hardware Performance EEPROM Failure C056D 37: ECU Hardware Performance Watchdog/Safety μC Failure C056D 39: ECU Hardware Performance Internal Electronic Failure |
| DTC C056E (without HP5) | C056E 42: ECU Hardware Performance Calibration Data Set Not Programmed |
| DTC C056E (with HP5) | C056E 4B: ECU Software Performance Calibration Not Learned C056E 42: ECU Software Performance Calibration Data Set Not Programmed C056E 45: ECU Software Performance Variant Not Programmed C056E 46: ECU Software Performance Configuration Not Programmed |
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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.