DTC P033A - Knock/Combustion Vibration Sensor D Circuit

WARNING: This page does not describe the selected car, but rather 24 other vehicles, including the 2019 Lincoln Navigator, 2019 Lincoln Nautilus, 2019 Lincoln MKZ, 2019 Lincoln MKT, and 2019 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.

DTC DESCRIPTION P033A - KNOCK/COMBUSTION VIBRATION SENSOR D CIRCUIT

Description: This DTC sets when the voltage goes outside a calibrated level. The knock sensor 22 (KS22) detects vibrations upon increase and decrease in engine RPM. The KS22 sensor generates a voltage based on this vibration.
Possible Causes: KS22 circuit open KS22RTN circuit open KS22 circuit short to voltage KS22RTN circuit short to voltage KS22 circuit short to ground KS22RTN circuit short to ground Damaged KS22
Diagnostic Aids: A KS22 sensor voltage greater than 0.5 volt with the ignition ON, engine OFF, indicates a concern is present. The vehicle may need to be driven for several minutes to set this DTC.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST DG .