Toyota Yaris: Dynamic Radar Cruise Control System / Software Incompatibility with Body Control Module Invalid/Incompatible Software Component (U032257)

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Dynamic Radar Cruise Control System / Software Incompatibility with Body Control Module Invalid/Incompatible Software Component (U032257)

DESCRIPTION

The millimeter wave radar sensor assembly receives vehicle specification information from the main body ECU (multiplex network body ECU) and ECM via the CAN communication line. If the vehicle specification information stored in the millimeter wave radar sensor assembly does not match the vehicle specification information sent from the main body ECU (multiplex network body ECU) and ECM, the millimeter wave radar sensor assembly stores DTC U032257.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

U032257

Software Incompatibility with Body Control Module Invalid/Incompatible Software Component

While the dynamic radar cruise control system is operating, the vehicle information (steering wheel position) stored in the millimeter wave radar sensor assembly does not match the vehicle information sent from the main body ECU (multiplex network body ECU) for approximately 5 seconds or more.

Front camera system

Radar Cruise2

PROCEDURE

1.

GO TO FRONT RADAR SENSOR SYSTEM

HINT:

If DTC U032257 is output by the dynamic radar cruise control system, perform troubleshooting for the front radar sensor system.

Click here

NEXT

END

    Software Incompatibility with Body Control Module Not Programmed (U032251)

    DESCRIPTION If the millimeter wave radar sensor assembly cannot confirm the vehicle information (steering wheel position) sent from the main body ECU (multiplex network body ECU), the millimeter wave radar sensor assembly stores DTC U032251...

    Invalid Data Received from ECM/PCM "A" Invalid Serial Data Received (U040181)

    DESCRIPTION If the ECM cannot recognize the millimeter wave radar sensor assembly. DTC U040181 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U040181 Invalid Data Received from ECM/PCM "A" Invalid Serial Data Received Approximately 17 seconds or more after the ignition switch is turned to ON, the ECM cannot recognize the millimeter wave radar sensor assembly for approximately 5 seconds or more...

    Other information:

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    Categories

    Supplemental Restraint System (SRS) Precautions

    The front and side supplemental restraint systems (SRS) include different types of air bags. Please verify the different types of air bags which are equipped on your vehicle by locating the “SRS AIRBAG” location indicators. These indicators are visible in the area where the air bags are installed.

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