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Home >> Mazda >> 2019 >> CX-9 Signature >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> On-Board Diagnostic - Laser Sensor >> DTC U0420-00/U0420-82: Signal Error From EPS Control Module [Laser Sensor] >> Notes
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DTC U0420-00/U0420-82: Signal Error From EPS Control Module [Laser Sensor]: Notes

DTC U0420:00/U0420:82 [LASER SENSOR] DETECTION CONDITION AND POSSIBLE CAUSE

DTC U0420:00 Signal error from EPS control module
U0420:82
DETECTION CONDITION
  • Error detected in signal from EPS control module via CAN communication
FAIL-SAFE FUNCTION
  • Master warning light Illuminates
  • Smart City Brake Support (SCBS) control disabled
POSSIBLE CAUSE
  • EPS control module malfunction
SYSTEM WIRING DIAGRAM -
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