P0604 : Control Module Random Access Memory
Faulty Power train Control Module (PCM)
PCM harness is open or shorted
PCM circuit poor electrical connection
PCM Programming
Clear code and re try if code resets, you may have to get a dealer to re flash the PCM and if this fails you my be requiring a new PCM.
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Sunday, June 25th, 2017 AT 12:44 AM