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.
Function Mode 02: Retrieving DTC Memory
Press 02, then press "Q" key to confirm input. Display shows number of DTCs stored in memory. NO DTC RECOGNIZED will be displayed if no DTCs are stored in memory. If DTCs are stored in memory they will start printing out in sequence. If printer was not turned on, press right arrow key to advance through list of DTCs. Record DTCs and go to appropriate diagnostic test. Press right arrow key to return to select function display.
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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.