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.
- Perform the following action:
- Ignition - On / Vehicle - In Service Mode
- Clear the DTCs.
- Ignition/Vehicle - Off
- Driver Door - Open & Close
- Wait for greater than 2 min.orInstrument Panel=Off
- 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:
- 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.