Pinpoint Test Dg: Knock Sensor (KS)
WARNING: This page is about a different car, the 2021 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
Normal Operation and Fault Conditions
Refer to the DTC Fault Trigger Conditions.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| PCM P0325:00 | Knock/Combustion Vibration Sensor "A" Circuit: No Sub Type Information | Sets when the PCM detects the voltage goes outside a calibrated level. The KS11 detects vibrations upon increase and decrease in engine RPM. The KS11 generates a voltage based on this vibration. The vehicle may need to be driven for several minutes to set this DTC. |
| PCM P0327:00 | Knock/Combustion Vibration Sensor "A" Circuit Low: No Sub Type Information | Sets when the PCM detects the voltage goes outside a calibrated level. The KS11 detects vibrations upon increase and decrease in engine RPM. The KS11 generates a voltage based on this vibration. The vehicle may need to be driven for several minutes to set this DTC. |
| PCM P0328:00 | Knock/Combustion Vibration Sensor "A" Circuit High: No Sub Type Information | Sets when the PCM detects the voltage goes outside a calibrated level. The KS11 detects vibrations upon increase and decrease in engine RPM. The KS11 generates a voltage based on this vibration. The vehicle may need to be driven for several minutes to set this DTC. |
| PCM P032A:00 | Knock/Combustion Vibration Sensor "C" Circuit: No Sub Type Information | Sets when the PCM detects the voltage goes outside a calibrated level. The KS12 detects vibrations upon increase and decrease in engine RPM. The KS12 generates a voltage based on this vibration. The vehicle may need to be driven for several minutes to set this DTC. |
| PCM P032C:00 | Knock/Combustion Vibration Sensor "C" Circuit Low: No Sub Type Information | Sets when the PCM detects the voltage goes outside a calibrated level. The KS12 detects vibrations upon increase and decrease in engine RPM. The KS12 generates a voltage based on this vibration. The vehicle may need to be driven for several minutes to set this DTC. |
| PCM P032D:00 | Knock/Combustion Vibration Sensor "C" Circuit High: No Sub Type Information | Sets when the PCM detects the voltage goes outside a calibrated level. The KS12 detects vibrations upon increase and decrease in engine RPM. The KS12 generates a voltage based on this vibration. The vehicle may need to be driven for several minutes to set this DTC. |
| PCM P0330:00 | Knock/Combustion Vibration Sensor "B" Circuit: No Sub Type Information | Sets when the PCM detects the voltage goes outside a calibrated level. The KS21 detects vibrations upon increase and decrease in engine RPM. The KS21 generates a voltage based on this vibration. The vehicle may need to be driven for several minutes to set this DTC. |
| PCM P0332:00 | Knock/Combustion Vibration Sensor "B" Circuit Low: No Sub Type Information | Sets when the PCM detects the voltage goes outside a calibrated level. The KS21 detects vibrations upon increase and decrease in engine RPM. The KS21 generates a voltage based on this vibration. The vehicle may need to be driven for several minutes to set this DTC. |
| PCM P0333:00 | Knock/Combustion Vibration Sensor "B" Circuit High: No Sub Type Information | Sets when the PCM detects the voltage goes outside a calibrated level. The KS21 detects vibrations upon increase and decrease in engine RPM. The KS21 generates a voltage based on this vibration. The vehicle may need to be driven for several minutes to set this DTC. |
| PCM P033A:00 | Knock/Combustion Vibration Sensor "D" Circuit: No Sub Type Information | Sets when the PCM detects the voltage goes outside a calibrated level. The KS22 detects vibrations upon increase and decrease in engine RPM. The KS22 generates a voltage based on this vibration. The vehicle may need to be driven for several minutes to set this DTC. |
| PCM P033C:00 | Knock/Combustion Vibration Sensor "D" Circuit Low: No Sub Type Information | Sets when the PCM detects the voltage goes outside a calibrated level. The KS22 detects vibrations upon increase and decrease in engine RPM. The KS22 generates a voltage based on this vibration. The vehicle may need to be driven for several minutes to set this DTC. |
| PCM P033D:00 | Knock/Combustion Vibration Sensor "D" Circuit High: No Sub Type Information | Sets when the PCM detects the voltage goes outside a calibrated level. The KS22 detects vibrations upon increase and decrease in engine RPM. The KS22 generates a voltage based on this vibration. The vehicle may need to be driven for several minutes to set this DTC. |
Possible Sources
- Knock sensor circuitry concern
- Base engine concerns
- Cooling system concerns
- Fuel quality
- Positive crankcase ventilation (PCV) system concern
- Oil and filter maintenance concern
- Oil overfilled
- Excessive oil consumption
- Spark plug
- Fuel injector
- Knock sensor (12A699)
- PCM (12A650)