P1603

BAT Team

By BAT Team (Contact Me)
Last Updated 2017-01-17
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Trouble CodeFault LocationProbable Cause
P1603 Engine Control Module Defective (AUDI, SAAB, VOLKSWAGEN)
Loss Of Sensing Diagnostic Mode Data Conditions (BUICK, CADILLAC, CHEVROLET, GMC)
PCM Internal Dual-Port Communication Failure (CHRYSLER, DODGE, JEEP)
CAN Communication Bus Error (HYUNDAI, KIA)
Engine Control Module Incorrect Immobilizer Code (MAZDA)
Battery Backup Line Malfunction (MITSUBISHI)

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Other Manufacturer Specific Definitions for P1603

Loss Of Sensing Diagnostic Mode Data Conditions (GM)
Engine Stall History (Toyota)
Engine control module (ECM) - defective (Volkswagen)
Engine control module (ECM) - defective (Audi)
Manifold differential pressure (MOP) sensor, bank 1 – pressure above upper limit (BMW)
Loss Of Sensing Diagnostic Mode Data Conditions (Buick)
CAN data bus -sensing/diagnostic module (SOM) (Cadillac)
Loss Of Sensing Diagnostic Mode Data Conditions (Chevrolet)
Engine control module (ECM) -RAM link error (Chrysler)
Engine control module (ECM) -battery supplyvoltage (Dodge)
CAN Communication Bus Error (Hyundai)
Engine control module (ECM) -malfunction (Jeep)
CAN Communication Bus Error (Kia)
Engine Stall History (Lexus)
Engine control module (ECM) – incorrect immobilizer code (Mazda)
CAN data bus, ignition switch control module – malfunction (Mercedes-Benz)
Engine control module (ECM) – battery supply voltage (Mitsubishi)
CAN data bus -sensing/diagnostic module (SOM) (Oldsmobile)
Engine control module (ECM) -RAM link error (Plymouth)
Engine control module (ECM) – defective (Saab)
Engine Stall History (Scion)
Transmission control module (TCM) – trouble codes stored (Suzuki)
Electronic throttle system (ETS)- range/performance problem (Volvo)

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