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 B101DDIAGNOSTIC AIDS
2020 Chevrolet Spark LS, Standard Trans
Diagnostic Aids
2020 Chevrolet Spark LS, Standard TransSECTION Diagnostic Aids
- This DTC may be stored as a history DTC without affecting the operation of the device.
- Do not replace a device based only on DTC B101D being set in history with the exception of the following devices:
- K36 Inflatable Restraint Sensing and Diagnostic Module (SDM)
- K85 Passenger Presence Module
- If DTC B101D is set as current, replace the appropriate device.
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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.