Pinpoint Test Dg: Knock Sensor (KS)
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)