Toyota Yaris: 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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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.
The air bags are installed in the following locations:
The steering wheel hub (driver air bag) The front passenger dashboard (front passenger air bag) The outboard sides of the front seatbacks (side air bags) The front and rear window pillars, and the roof edge along both sides (curtain air bags)