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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1873 (POWER STEERING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Diagnostic Code Index
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION 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 |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.