DTC Troubleshooting: P0325 (23)
  1. Check for continuity between ECM connector terminal C42 and body ground.
Is there continuity?
YES -
Go to Step 13 .
NO -
Repair open in the wire between the ECM (C42) and the knock sensor, then go to Step 14 .
  1. Replace the knock sensor.
  1. Reconnect all connectors and the battery.
  1. Turn the ignition switch ON (II).
  1. Reset the ECM with the HDS.
  1. Do the ECM idle learn procedure.
  1. Hold the engine speed between 3,000−4,000 rpm (min −1 ) for at least 10 seconds.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0325 indicated?
YES -
Go to Step 21 .
NO -
Go to Step 20 .
  1. Monitor the OBD STATUS for DTC P0325 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES -
Troubleshooting is complete. If any other Temporary DTCs or DTCs were indicated in Step 19 , go to the indicated DTC's troubleshooting.■
NO -
If the screen indicates FAILED, check for poor connections or loose terminals at the knock sensor and the ECM, then go to Step 1 . If the screen indicates NOT COMPLETED, go to Step 17 and recheck.
  1. Update the ECM if it does not have the latest software, or substitute a known-good ECM.
  1. Hold the engine speed between 3,000−4,000 rpm (min −1 ) for at least 10 seconds.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0325 indicated?
YES -
Check for poor connections or loose terminals at the knock sensor and the ECM. If the ECM was updated, substitute a known-good ECM, then go to Step 22 . If the ECM was substituted, go to Step 1 .
NO -
Go to Step 24 .
  1. Monitor the OBD STATUS for DTC P0325 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES -
If the ECM was updated, troubleshooting is complete. If the ECM was substituted, replace the original ECM. If any other Temporary DTCs or DTCs were indicated in Step 23 , go to the indicated DTC's troubleshooting.■
NO -
If the screen indicates FAILED, check for poor connections or loose terminals at the knock sensor and the ECM. If the ECM was updated, substitute a known-good ECM, then go to Step 22 . If the ECM was substituted, go to Step 1 . If the screen indicates NOT COMPLETED, go to Step 22 .