BAT Team

By BAT Team (Contact Me)
Last Updated 2017-01-17
A site with free advice from mechanics.

Trouble CodeFault LocationProbable Cause
P1604 Engine Control Module Defective (AUDI, SAAB, VOLKSWAGEN)
Loss Of IPC Serial Data Conditions (BUICK, CADILLAC, CHEVROLET, GMC)
PCM Internal Dual-Port RAM Read/Write Integrity Failure (DODGE, JEEP)
Startability Malfunction (LEXUS, TOYOTA)

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Other Manufacturer Specific Definitions for P1604

Loss Of IPC Serial Data Conditions (GM)
Startability Malfunction (Toyota)
Engine control module (ECM) - defective (Volkswagen)
Engine control module (ECM) - defective (Audi)
CAN data bus (Buick)
CAN data bus -instrument panel (Cadillac)
CAN data bus -instrument panel (Chevrolet)
Engine control module (ECM) -RAM read/write error (Chrysler)
. Engine control module (ECM) -RAM read/ write error (Dodge)
No ID From ECU (Hyundai)
Engine control module (ECM) -RAM read/writeerror (Jeep)
Startability Malfunction (Lexus)
Engine control module (ECM) – incorrect immobilizer code (Mazda)
Engine control module (ECM) – RAM   read/write error (Mitsubishi)
CAN data bus -instrument panel (Oldsmobile)
Engine control module (ECM) -RAM read/ write error (Plymouth)
Engine control module (ECM) – defective (Saab)
Startability Malfunction (Scion)
Electronic throttle system (ETS) control module – malfunction (Volvo)

BAT Team Discussions for P1604

  • 2013 Corolla cranks over but no start
    Code P1604. Pulled into garage sat overnight. Tried to start next day. Battery voltage 12.16 when cranking. Turns over has fuel spraying out of injectors. Trying to check for spark but by myself and can't crank and look under hood at same time....