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HOMESERVICE MANUALSCHEVROLET2018SONIC PREMIER, 4D SEDAN, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2 (VEHICLE DIAGNOSTIC INFORMATION - DIAGNOSTIC INFORMATION AND PROCEDURES)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC REPAIR VERIFICATION
2018 Chevrolet Sonic Premier, 4D Sedan, Standard Trans

Diagnostic Repair Verification

2018 Chevrolet Sonic Premier, 4D Sedan, Standard TransSECTION Diagnostic Repair Verification
WARNING: This page is about a different car, the 2017 GMC Canyon and 2017 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

After a repair has been made, some DTCs require the ignition to be turned Off and then back On before the scan tool function will clear the DTC.

  1. Ignition/Vehicle Off
  2. Install any components or connectors that have been removed or replaced during diagnosis.
  3. Perform any adjustment, programming or setup procedures that are required when a component or module is removed or replaced.
  4. Ignition On/Vehicle In Service Mode
  5. Perform the following action: Clear the DTCs.
  6. Ignition/Vehicle Off - For greater than 60 s
  7. Perform the Circuit/System Verification and verify the result ends with an All OK - If available

    or

    If the repair was related to a DTC, duplicate the Conditions for Running the DTC and use the Freeze Frame/Failure Records, if applicable, in order to verify the DTC does not set. If the DTC sets or another DTC is present, refer to Diagnostic Trouble Code (DTC) List - Vehicle 

    or

    If the repair was symptom related, duplicate the conditions under which the customer concern occurred to verify the repair. If the customer concern reoccurs or another symptom is present, refer to Symptoms - Vehicle 

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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.