DTC Troubleshooting: P0326
DTC P0326: Knock Sensor Malfunction
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0326 Knock Sensor Malfunction
      

1.
Knock sensor installation check:

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

Is the knock sensor installed correctly?

     
YES
     
     
     
     
NO
     
     
     
Installation is not correct, reinstall the knock sensor, then do the repair verification.
Repair verification:

?1.
Reconnect all connectors.

?2.
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

?3.
Reset the PCM with the HDS.


?4.
Do the PCM idle learn procedure.

?5.
Test-drive under these conditions:
Engine coolant temperature (ECT SENSOR 1) above 158 °F (70 °C).
A/T in D, M/T in 5th
Engine speed at 1,500 rpm or more
Drive 5 seconds or more

Signal
Current conditions
Values
Unit
ECT SENSOR 1
    
VEHICLE SPEED
    

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


Is DTC P0326 indicated?

     
YES
     
     
     
Check for poor connections or loose terminals at knock sensor and the PCM. If the PCM was updated, substitute a known-good PCM, then recheck. If the PCM was substituted, go to step 1.
     
NO
     
     
     
Troubleshooting is complete. If the PCM was substituted, replace the original PCM. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.?