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Home >> Jeep >> 2023 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 43 (2.0L - DTCS P02F1 To P0369) >> DTC Troubleshooting >> P0328 Knock Sensor 1 Circuit High >> Possible Causes

Possible Causes

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Possible Causes
KNOCK SENSOR 1 SIGNAL CIRCUIT SHORTED TO VOLTAGE
KNOCK SENSOR 1 RETURN CIRCUIT OPEN
KNOCK SENSOR 1
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .