P1604 Diagnostic Trouble Code Discussion for December 2018
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 | |
| 2016 Toyota Tundra Limited 5.7L No Start, Poor Idle Quality, Misfire VIN: 5TFRW5F1XG P1604: . ... upon cold start. Further interrogation revealed extended crank time. The only code was P1604/start ability malfunction. After the engine has been allowed to achieve temperatures below 50°F, we were able to experience the problem. The first time the en... |
December 19, 2018 |
