Malfunction Threshold

DTC: P0327 

The knock sensor 1 (bank 1) output voltage is 0.5 V or less for at least 2 seconds.

DTC: P0328 

The knock sensor 1 (bank 1) output voltage is 4.50 V or more for at least 2 seconds.

Possible Cause 

NOTE:  The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.

DTC: P0327 

• Knock sensor 1 (bank 1) KSB1 line short to ground

DTC: P0328 

• Knock sensor 1 (bank 1) KSB1 line open
• Knock sensor 1 (bank 1) KSSGB1 line open

Common 

• Knock sensor 1 (bank 1) failure
• PCM internal circuit failure