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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Power Door Locks - Non-DTC Diagnostics >> Diagnosis and Testing >> All Doors Fail To Lock >> Theory of Operation

Theory of Operation

Both the Door Lock Driver circuits (P392 and P393) are connected together inside the Cluster. Therefore either circuit shorted will affect all door locks. Depending on where the short is, some doors may lock.

Possible Causes 
(P392) DOOR LOCK DRIVER CIRCUIT SHORT TO GROUND
(P393) DOOR LOCK DRIVER CIRCUIT SHORT TO GROUND
CLUSTER
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