P1605

DTC P1605 Knock Control CPU Malfunction

CIRCUIT DESCRIPTION

Knock sensors are fitted one each to the left bank and right bank of 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.





DIAGNOSTIC TROUBLE CODE DETECTING CONDITION AND TROUBLE AREA





WIRING DIAGRAM





INSPECTION PROCEDURE