P1603 CHRYSLER – PCM Internal Dual-Port Communication Failure

P1603 CHRYSLER Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1603 CHRYSLER Possible Causes

Powertrain Control Module (PCM) fused ignition switch circuit,Faulty PCM,PCM harness is open or shorted,PCM circuit poor electrical connection

P1603 CHRYSLER Description

PCM Internal Dual-Port Communication Failure is the generic description for the P1603 Chrysler code, but the manufacturer may have a different description. Currently we have no further information abouth the P1603 Chrysler OBDII code.