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DTC U0433-00: Error Signal Received From Laser Sensor: Notes

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
Description Error signal received from laser sensor
Detection condition 
  • Instrument cluster detects the following conditions:
    • The smart city brake support operated normally in the past.
    • Malfunction of laser sensor or smart city brake support related system (laser sensor, DSC HU/CM, PCM)
    • Laser sensor control is temporarily inhibited.
Fail-safe function 
  • Detection condition: The smart city brake support operated normally in the past.
    • Function not equipped.
  • Detection condition: Malfunction in laser sensor or smart city brake support related system (laser sensor, DSC HU/CM, PCM)
    • Inhibits the smart city brake support control.
    • Warning message related to the smart city brake support is displayed on the LCD (Instrument cluster (with TFT LCD)).
  • Detection condition: Laser sensor control is temporarily inhibited.
    • Temporarily inhibits the smart city brake support control.
Possible cause 
NOTE:
  • Instrument cluster stores DTC U0433:00 as a record that the smart city brake support operated normally.
  • System related to the smart city brake support stores DTCs.
  • The laser sensor cannot temporarily function due to dirt on the windshield.
  • Laser sensor malfunction
  • Instrument cluster malfunction
System wiring diagram  Not applicable