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Home >> Toyota >> 1997 >> Supra 3.0 D, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Tests W/Codes - Non-Turbo >> Circuit Tests >> DTC P1605: Knock Control CPU Malfunction >> Circuit Description

Circuit Description

Knock sensors are located on front and rear left side of cylinder block. Sensor generates voltage when engine block vibrates due to knocking. DTC P0325 is for front sensor. DTC P0330 is for rear sensor. DTC is set when there is no knock sensor signal to ECM with engine speed of 1600 RPM or more. Possible cause is: Possible cause is: