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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 107 (1.6L Engine - DTCS P0303 To P0629) >> Diagnosis And Testing >> P0551-Power Steering Switch Failure >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2006 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
POWER STEERING PRESSURE SWITCH OPERATION
(Z902) GROUND CIRCUIT OPEN
(K66) POWER STEERING PRESSURE SWITCH SIGNAL CIRCUIT SHORTED TO GROUND
(K66) POWER STEERING PRESSURE SIGNAL CIRCUIT OPEN
PCM
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