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.
Diagnostic Repair Verification
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.
- Ignition/Vehicle - Off
- Install any components or connectors that have been removed or replaced during diagnosis.
- Perform any adjustment, programming or setup procedures that are required when a component or module is removed or replaced.
- Ignition - On/Vehicle - In Service Mode
- Perform the following action: Clear the DTCs.
- Ignition/Vehicle - Off - For greater than 60 s
- 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 - VehicleΒ
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 - VehicleΒ
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.