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Home › Jeep › 2023 › Grand Cherokee Altitude, AWD › Repair and Diagnosis › Engine Performance › System › 3.6L - DTCS P0221 To P032F › DTC Troubleshooting › P0325 Knock Sensor 1 Circuit › Set Condition

Set Condition

The Powertrain Control Module (PCM) detects that the Knock Sensor input voltage is either:
- above 4.8 volts.
- less than 0.2 volts when engine speed is above 2000 RPM.