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 MANUALSCHEVROLET2020SPARK LS, STANDARD TRANSREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMDATA COMMUNICATIONSDIAGNOSTIC INFORMATION AND PROCEDURESDTC U0077CONDITIONS FOR CLEARING THE DTC
2020 Chevrolet Spark LS, Standard Trans
Conditions for Clearing the DTC
2020 Chevrolet Spark LS, Standard TransSECTION Conditions for Clearing the DTC
- A current DTC clears when the malfunction is no longer present.
- A history DTC clears when the device ignition cycle counter reaches the reset threshold, without a repeat of the malfunction.
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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.