Diagnostic Aids
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0325 is for the left bank knock sensor circuit. DTC P0330 is for the right bank knock sensor circuit. Read freeze frame data using hand-held tester or OBD-II scan tool, because freeze frame records engine conditions when the malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio was lean or rich, at the time of the malfunction.