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.
Section 627 (Combination Meter - Diagnostics): Pre-Check
- DATA LIST
HINT:
According to the DATA LIST displayed by the Hand-held tester, you can read the value of the switch, sensor, actuator and so on without parts removal. Reading the DATA LIST as a first step of troubleshooting is one of the method to shorten the labor time.
- Warm up the engine.
- Turn the ignition switch OFF.
- Connect the Hand-held tester to the DLC3.
- Turn the ignition switch ON.
- According to the display on tester, read the "DATA LIST".
ALL (ECM):
ALL (ECM)Item Measurement Item/Range (Display) Normal Condition Diagnostic Note ENGINE SPD Engine speed / Min.: 0 rpm, Max.: 16,383 rpm Almost same as actual engine speed (When engine is running) - COOLANT TEMP Coolant Temperature / Min.: -40°C (-40°F), Max.: 140°C (284°F) After warming up: 80 to 95°C (176 to 203°F) If the value is "-40°C (-40°F)" or "140°C (284°F)", sensor circuit is open or shorted.
NO RELATED
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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.