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.
Confirmation Driving Pattern
- Connect the hand-held tester to the DLC3.
- Switch the hand-held tester from normal mode to check mode (see CHECK MODE PROCEDURE ).
- Start the engine and warm up the engine until engine coolant temperature is more than 75°C.
- Drive the vehicle at 38 mph (60 km/h) or more for 40 seconds or more.
- Let the engine idle for 10 seconds or more.
- Perform steps d and e 12 times.
HINT:
If a malfunction exists, the MIL will be illuminated during step f.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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