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Home >> Mazda >> 2018 >> CX-9 Signature >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> On-Board Diagnostic - Radar Unit >> DTC U0316-09: Error Signal Received From DSC HU/Control Module >> Notes
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DTC U0316-09: Error Signal Received From DSC HU/Control Module: Notes

DTC U0316:09 (Radar Unit) DETECTION CONDITION AND POSSIBLE CAUSE

Description Error Signal Received From DSC HU/Control Module
Detection Condition
  • There is an error in the following signals sent from the DSC HU/Control Module.
    • Yaw rate signal
    • Lateral-G signal
    • Longitudinal-G signal
    • Wheel speed signal
    • Brake fluid pressure signal
    • Cruise control system control signal
      • Signal error in brake light circuit
Fail-safe
  • Inhibits the Mazda radar cruise control (MRCC) system control
  • Inhibits the smart brake support (SBS) system control
  • Inhibits the distance recognition support system (DRSS) control
Possible Cause
  • DTCs are stored in the SAS control module.
    • SAS control module malfunction
  • DTCs are stored in the DSC HU/Control Module.
  • DTCs are stored in the rear body control module (RBCM).
    • Rear body control module (RBCM) malfunction
  • DSC HU/Control Module malfunction
  • Radar unit malfunction
System Wiring Diagram Not applicable