Details On DTCs
U2031-46: (VCM) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Front radar sensor calibration data parameter error |
| Detection condition |
Determination conditions |
- The vehicle control module (VCM) detects that the front radar sensor received error calibration data from the vehicle control module (VCM).
- The vehicle control module (VCM) detects a front radar sensor internal malfunction.
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| Preconditions |
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| Malfunction determination period |
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| Fail-safe |
(See DTC TABLE [VCM]
.) |
| Vehicle status when DTCs are output |
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| Possible cause |
NOTE:
- Depending on the module, after the ignition is switched ON (engine off or on) or off/main power is switched ON (READY off or on) or OFF, there is a module that needs 30 s to correctly write the calibration data and configuration data.
- Calibration error after front radar sensor replacement
- Internal malfunction related DTCs are stored in the following modules.
- Vehicle control module (VCM)
- Body control module (BCM)
- DTCs are stored in the front radar sensor.
- Communication error in CAN communication circuit between vehicle control module (VCM) and front radar sensor
- Front radar sensor malfunction
- Vehicle control module (VCM) malfunction (built into body control module (BCM))
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