Toyota - P0325

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Contents

DIAGNOSTICS ENGINE DI 71 DI38A 03 DTC P0325 Knock Sensor 1 Circuit Malfunction CIRCUIT DESCRIPTION The knock sensor is fitted to the cylinder block to detect engine knocking This sensor contains a piezoelec tric element which generates a voltage when it becomes deformed which occurs when the cylinder block vibrates due to knocking If engine knocking occurs ignition timing is retarded to suppress it DTC No DTC Detecting Condition Trouble Area P0325 No knock sensor 1 signal to ECM with engine speed 2 000 rpm or more Open or short in knock sensor 1 circuit Knock sensor 1 looseness ECM HINT If the ECM detects above diagnosis conditions it operates the fail safe function in which the corrective retard angle value is set t ...