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Home >> Chrysler >> 2009 >> PT Cruiser Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (DTCS P1502 To P209) >> P1607-Pcm Internal Shutdown Timer Slow Rationality >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2009 Dodge Caliber. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
PENDING TEMPERATURE SENSOR DTCS
STUCK ENGINE OFF TIMER
LOW OR NO BATTERY VOLTAGE AT PCM DIRECT BATTERY FEED CIRCUIT
FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR HIGH RESISTANCE
FUSED B+ CIRCUIT OPEN OR HIGH RESISTANCE
POWERTRAIN CONTROL MODULE (PCM)

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