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Home >> Mazda >> 2021 >> 3 Select, 4D Hatchback, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> On-Board Diagnostic - Vehicle Control Module (2 Of 2) >> DTC C1A67-87: Communication Error With Front Radar Sensor Related Module [Vehicle Control Module (Us)] >> Outline
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DTC C1A67-87: Communication Error With Front Radar Sensor Related Module [Vehicle Control Module (Us)]: Outline

DTC C1A67:87 [VEHICLE CONTROL MODULE (US)] DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Communication error with front radar sensor related module
Detection condition
  • The vehicle control module (VCM) detects that the front radar sensor received a communication error with the following modules for 15 s.
    • DSC HU/CM
    • Steering angle sensor
    • Vehicle control module (VCM)
      • Body control module (BCM)
Fail-safe (See DTC TABLE [VEHICLE CONTROL MODULE (US)] .)
Possible cause
  • CAN communication line malfunction
    • CAN BUS No. 1 communication line
    • CAN BUS No. 3 communication line
      • CAN BUS No. 6 communication line
  • Malfunction in each CAN communication related module
    • DSC HU/CM
    • Steering angle sensor
    • Vehicle control module (VCM)
      • Body control module (BCM)
  • Configuration data error
System wiring diagram Not applicable
Connector diagram Not applicable