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.
Monitor Drive Pattern
- TEST MONITOR DRIVE PATTERN FOR ECT CAUTION: Perform this drive pattern on a level surface and strictly observe the posted speed limits and traffic laws while driving.
HINT:
Performing this drive pattern is one method to simulate the ECT's malfunction detection conditions.
The DTCs may not be detected through ordinary, everyday driving. Also, DTCs may not be detected through this drive pattern.
- Preparation for driving
- Warm up the engine sufficiently (engine coolant temperature is 60°C (140°F) or higher).
- Drive the vehicle when the atmospheric temperature is -10°C (14°F) or higher. Malfunctions are not detected when the atmospheric temperature is less than -10°C
- Drive pattern
- Drive the vehicle through all the gears.
Stop → 1st → 2nd → 3rd → 4th → 5th → 6th → 6th (lock up ON).
- Perform the engine brake test with the shift lever on S. While driving in the 6 (S) position and 6th gear lock up, shift into the "+" position and down-shift from 6th → 5th, 5th → 4th, 4th → 3rd, 3rd → 2nd and 2nd → 1st.
Check that the engine brake operates properly when every down-shift takes place.
- Repeat the above drive pattern 3 times or more.NOTE:
- When using the intelligent tester, the monitor status can be found in "ENHANCED OBD II / DATA LIST" or under "CARB OBD II".
- In the event that the drive pattern must be interrupted (due to traffic conditions or other factors), the drive pattern can be resumed and, in most cases, the monitor can be completed.
- Drive the vehicle through all the gears.
- Preparation for driving
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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