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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 349 (Gas - DTCS P0306 To P0455) >> P0325-Knock Sensor 1 Circuit >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2010 Dodge Charger and 2010 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
(K42) KS 1 SIGNAL CIRCUIT SHORTED TO VOLTAGE
(K42) KS 1 SIGNAL CIRCUIT SHORTED TO GROUND
(K42) KS 1 SIGNAL CIRCUIT SHORTED TO THE (K942) KS 1 RETURN CIRCUIT
(K42) KS 1 SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
(K942) KS 1 RETURN CIRCUIT OPEN OR HIGH RESISTANCE
KNOCK SENSOR 1
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.  See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .