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.
Diagnostic Test
- CHECK KNOCK SENSOR
- Turn ignition switch OFF.
- Disconnect knock sensor harness connector.
- Check resistance between knock sensor terminals as per the following.NOTE:
It is necessary to use an ohmmeter which can measure more than 10 MΩ.
Knock sensor Resistance + - Terminals 1 2 Approx. 532 - 588 kΩ [at 20°C (68°F)] CAUTION:Do not use any knock sensors that have been dropped or physically damaged. Use only new ones.
Is the inspection result normal?
YES
INSPECTION END
NO
Replace knock sensor. Refer to EXPLODED VIEW .
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.