P0324 - Knock Control System Error

The ECM detected a fault in the knock control system.

Code Overview

The ECM detected a fault in the knock control system.

Common Causes

• Knock sensor signal issue
• Damaged wiring or connector
• Engine noise or timing problem affecting knock control

Diagnostic Steps

1. Inspect knock sensor wiring and connector condition
2. Check for related knock sensor or timing codes
3. Look for abnormal engine noise before replacing parts

Likely Repairs & Cost Guides

Use test results to confirm the fault before pricing the repair.

Related OBD Codes

Browse the closest code-family pages when the same fault pattern often shows up nearby.

Next Steps

Move from the code to a diagnosis path, then into repair pricing once the fault is confirmed.