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.
DTC Confirmation Procedure
- PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
GO TO STEP 2.
- CHECK ENGINE COOLANT TEMPERATURE SENSOR 1 FUNCTION
With CONSULT
- Turn ignition switch ON.
- Select "DATA MONITOR" mode with CONSULT.
- Check that "COOLANT TEMP/S" is above 10°C (50°F).
Is the temperature above 10°C (50°F)?
YES
INSPECTION END
NO
GO TO STEP 3.
- PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
- Start engine and run it for 65 minutes at idle speed.
If "COOLANT TEMP/S" increases to more than - 7°C (19.4°F) within 65 minutes, stop engine because the test result will be OK.
CAUTION:Never overheat engine.
- Check 1st trip DTC.
Is 1st trip DTC detected?
YES
NO
INSPECTION END
- Start engine and run it for 65 minutes at idle speed.
NO RELATED
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.