Главная Automobile - Toyota Toyota Sequoia - Repair manual 2005 year
поиск по сайту правообладателям
|
|
содержание .. 7 8 9 10 ..
V08423 Knock Sensor 1 GR ECM KNK E1 12 WIRING DIAGRAM Wiring Diagram DTC P0325 Knock Sensor 1 Circuit Malfunction CIRCUIT DESCRIPTION Knock sensor is fitted to the cylinder block to detect engine knocking. This sensor contains a piezoelectric 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, 1,200 rpm or more. Open or short in knock sensor1 circuit Knock sensor 1 (looseness) ECM If the ECM detects the above diagnosis conditions, it operates the fall safe function in which the corrective retard angle value is set to the maximum value. Diagnostic Trouble Code No. and Detection Item Circuit Description The major role and operation, etc. of the circuit Indicates the diagnostic trouble code, diagnostic trouble code set parameter and suspect area of – INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED IN–33 33 6. CIRCUIT INSPECTION How to read and use each page is shown below. |