Knock/Combustion Vibration Control System Error

Check these first

• A faulty knock sensor
• Wiring or connector faults on the knock sensor circuit
• An ignition fault causing engine knock
• Low-octane or contaminated fuel
• An engine mechanical fault causing knock

What to do next

1. Read the knock sensor data on a scan tool
2. Inspect the knock sensor wiring and connector
3. Check the ignition system for misfires
4. Switch to the correct octane fuel and retest
5. Replace the knock sensor if the signal is bad
6. Clear the code and retest

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