P1604 Diagnostic Trouble Code Discussion for January 2010
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 | |
| 2002 Mazda 626 LX 2.5L No Start VIN: 1YVGF22D72 P1604: Key ID (Code Word) Not Registered In The PCM. Hey Guys, This 626 was purchased as a wreck at auction and when the guy couldn't get it running, it wound up here. No spark, no injector drive. When I clear the 2 codes, they reset as soon as the key is turned on. The theft light is off when the key is off, ... |
January 11, 2010 |
