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.
2003 Chevrolet Chevy Express H2500FACTORY OEM SERVICE PROCEDURE
Anti-Lock Brake DTCS
ANTI-LOCK BRAKE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC C0035 OR C0040 | EBCM DETECTS THE ABSENCE OF A WHEEL SPEED SENSOR SIGNAL |
| DTC C0055 OR P0609 | VEHICLE SPEED SIGNAL |
| DTC C0110 | EBCM DETECTS AN OPEN/SHORTED PUMP MOTOR CIRCUIT OR SEIZED PUMP MOTOR OR ABS PUMP |
| DTC C0161 | TCC BRAKE SWITCH SIGNAL CIRCUIT |
| DTC C0201 | VOLTAGE TO VALVE SOLENOIDS |
| DTC C0220, C0221, C0222, C0223, C0224, C0225, C0226, C0227, C0228, C0229, | EBCM HAS NOT RECEIVED A WHEEL SPEED SIGNAL FROM THE CORRESPONDING WHEEL |
| DTC C0245 | AT LEAST ONE WHEEL SPEED SENSOR SIGNAL IS LESS THAN OR GREATER THAN OTHER WHEEL SPEED SENSOR SIGNALS |
| DTC C0550 | EBCM DETECTS AN INTERNAL MALFUNCTION |
Factory Service Tools
Use the Manual With the Right Hardware
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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.