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P1604 Diagnostic Trouble Code Discussion for July 2019

PCM Internal Dual-Port Ram Read/Write Integrity Failure


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Trouble Ticket Help Requests for DTC P1604
Help Request Posted
2013 Toyota Camry SE 2.5L No Start, Stall VIN: 4T1BF1FK8D
P1604: start ability malfunction. Thank you in advance... This Camry was towed in by a body shop. The customer had driven in high water and hydro locked the engine and bent the rods. (no water in passenger compartment). So the insurance company brings a good used engine 45k miles. We insta...
July 02, 2019
2011 Toyota Corolla S 1.8L starts dies VIN: 2T1BU4EEXB
P1604: startability. ... dies. There is a code for P1604 startability, and P2118 throttle body motor. Thought maybe immobilizer or key problem. Lock smith test showed key was okay. Found immobilizer light near air bag switch went out when the key inserted. So key is probably ...
July 05, 2019