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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 103 (Powertrain Diagnostic Procedures) >> Diagnostic Information And Procedures >> DRIVEABILITY - NGC - Diagnostic Tests >> P1603-Pcm Internal Dual-Port Ram Communication, P1604-Pcm Internal Dual-Port Ram Read/Write Integrity Failure, P1607-Pcm Internal Shutdown Timer Rationality >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
  1. PCM FUSED IGNITION SWITCH OUTPUT CIRCUIT
  2. PCM
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