DTC Troubleshooting: P0325 (23)
DTC P0325:
 Knock Sensor Circuit Malfunction
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
  1. Turn the ignition switch to ON (II).
  1. Clear the DTC with the HDS.
  1. Start the engine. Hold the engine speed at 3,000 rpm (min −1 ) without load (A/T in P or N, M/T in neutral) until the radiator fan comes on, then let it idle.
  1. Hold the engine speed at 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 6 .
NO -
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the knock sensor and the ECM/PCM.■
  1. Turn the ignition switch to LOCK (0).
  1. Jump the SCS line with the HDS.
  1. Disconnect the knock sensor 1P connector.
  1. Disconnect ECM/PCM connector C (49P).
  1. Check for continuity between ECM/PCM connector terminal C46 and body ground.
Is there continuity?
YES -
Repair short in the wire between the ECM/PCM (C46) and the knock sensor, then go to Step 14 .
NO -
Go to Step 11 .