P1604 Diagnostic Trouble Code Discussion for February 2024
PCM Internal Dual-Port Ram Read/Write Integrity Failure
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Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P1604
| Help Request | Posted | |
| 2012 Scion xB 2.4L Stall VIN: JTLZE4FE6C P1604: Start Ability. Customer brought vehicle after doing cylinder head work due to "low compression". Performed a cylinder pressure waveform and it looks excellent. Don't have any reason to suspect anything wrong in the cylinder head work. The long term fuel trims are... |
February 15, 2024 |
