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P0327, P0328, P0332, P0333 KS EC-269 < DTC/CIRCUIT DIAGNOSIS > [VK56DE] C D E F G H I J K L M A EC N P O P0327, P0328, P0332, P0333 KS Component Description INFOID:0000000009886673 The knock sensor is attached to the cylinder block. It senses engine knocking using a piezoelectric element. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the ECM. On Board Diagnosis Logic INFOID:0000000009886674 The MIL will not light up for these self-diagnoses. DTC Confirmation Procedure INFOID:0000000009886675 NOTE: If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct- ing the next step. Before performing the following procedure, confirm that battery voltage is more than 10V at idle. 1. Start engine and run it for at least 5 seconds at idle speed. 2. Check 1st trip DTC. 3. If 1st trip DTC is detected, go to Diagnosis Procedure INFOID:0000000009886676 1. CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check resistance between ECM terminals 15, 36 and ground. Refer to Wiring Diagram. NOTE: It is necessary to use an ohmmeter which can measure more than 10 M Ω. PBIB0021E DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0327 Knock sensor circuit low in- An excessively low voltage from the sensor • Harness or connectors (The sensor circuit is open or shorted.) • Knock sensor P0332 P0328 Knock sensor circuit high in- An excessively high voltage from the sensor P0333 Resistance: Approximately 532 - 588 k Ω [at 20°C (68°F)] |