DTC Troubleshooting: P0326
DTC P0326: Knock Sensor Malfunction
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
P0326 Knock Sensor Malfunction
    

1.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Clear the DTC with the HDS.


?3.
Turn the vehicle to the OFF (LOCK) mode.

?4.
Start the engine, and hold the engine speed at 3,000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.

?5.
Hold the engine speed at 2,000 rpm or more without load (in P or N) for at least 5 seconds.

?6.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
P0326 Knock Sensor Malfunction
    

Is DTC P0326 indicated?

     
YES
     
     
     
Go to step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the knock sensor and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot.?
2.
Knock sensor installation check:

Knock sensor installation check
?1.
Check that the knock sensor is installed correctly.

Is the knock sensor installed correctly?

     
YES
     
     
     
Installation is OK. Replace the knock sensor.?
     
NO
     
     
     
Installation is not correct, reinstall the knock sensor.?