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Home >> Lexus >> 2021 >> NX 300 Base, AWD >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes & Circuit Tests >> Pre-Collision System >> DTC C1A02: Vehicle Information Not Obtained [10/2014 - 09/2017] >> Description

DTC C1A02: Vehicle Information Not Obtained [10/2014 - 09/2017]: Description

When a new driving support ECU assembly is installed, it receives vehicle specification information (destination, steering wheel position, etc.) from the main body ECU (multiplex network body ECU) and memorizes the information.

DTC C1A02 is stored when the driving support ECU assembly receives the vehicle specification information from the main body ECU (multiplex network body ECU) but cannot record it.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A02 Vehicle Information Not Obtained Inconsistent vehicle specification information between the main body ECU (multiplex network body ECU) and driving support ECU assembly continues for 1 second or more while the vehicle is being driven at a speed of 10 km/h (6 mph) or more.
  • Main body ECU (multiplex network body ECU)
  • Driving support ECU assembly