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P1604 Diagnostic Trouble Code Discussion for February 2019

PCM Internal Dual-Port Ram Read/Write Integrity Failure


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Trouble Ticket Help Requests for DTC P1604
Help Request Posted
2010 Toyota 4Runner SR5 4.0L No Start VIN: JTEBU5JR5A
P1604: Start ability malfunction. Hello all, we have this vehicle that is becoming a ghost for us...:( customer calls us and says it does not start, had the vehicle towed in, got in it and she fired right off. Drove the vehicle around for a few days (approx 40 miles) found absolutely no pr...
February 06, 2019
2010 Toyota 4Runner SR5 4.0L No Start VIN: JTEBU5JR5A
P1604: Start ability malfunction. Hello all, we have this vehicle that is becoming a ghost for us...:( customer calls us and says it does not start, had the vehicle towed in, got in it and she fired right off. Drove the vehicle around for a few days (approx 40 miles) found absolutely no pr...
February 07, 2019