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 1125 (ANTI-LOCK BRAKE SYSTEM, TRACTION CONTROL SYSTEM & STABILITY CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC C0242CIRCUIT/SYSTEM VERIFICATION
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
Circuit/System Verification
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Circuit/System Verification
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DTC C0242 will set as result of the ECM detects a malfunction and then causes traction control (TCS) shut down, until the malfunction has been corrected.
- Review Powertrain Symptoms list.
- Perform the Diagnostic System Check - Vehicle
.
- Diagnose any other Vehicle DTCs before attempting diagnosis of C0242.
- With Tech 2, view "Signals" Data Display list under EBCM.
- Refer to appropriate module for diagnosing any "invalid" signals.
- If no invalid signals are present, view "Signal Fault" data in "Enhanced DTC Data"
- Refer to appropriate module for diagnosing that invalid message data.
- Do not replace the EBCM due to this DTC fault.
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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.