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Home >> Jeep >> 2007 >> Commander Base, 4.7 P, AWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P1602 To P2123 >> P1607-Pcm Internal Shutdown Timer Rationality Too Slow >> Possible Causes
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Possible Causes

Possible Causes 
ENGINE COOLING CONDITIONS THAT MAY SET THIS DTC
ENGINE COOLANT LEVEL
PCM INTERNAL TIMER

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

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