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Home >> Mazda >> 2024 >> CX-30 Select Sport >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> On-Board Diagnostic - Vehicle Control Module (4 Of 4) >> DTC U0499-68: Error Signal Received From Emergency Call Unit/Telematics Communication Unit

DTC U0499-68: Error Signal Received From Emergency Call Unit/Telematics Communication Unit

U0499: 68 (VCM) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Error signal received from emergency call unit/telematics communication unit
Detection condition
  • The vehicle control module (VCM) receives an error signal from the emergency call unit/telematics communication unit.
Fail-safe (See DTC TABLE [VCM] .)
Possible cause
  1. Internal malfunction related DTCs are stored in the following modules.
  2. DTCs are stored in the emergency call unit/telematics communication unit. (See DTC TABLE [TCU] .)
  3. Emergency call unit/telematics communication unit malfunction (Refer to applicable TELEMATICS COMMUNICATION UNIT REMOVAL/INSTALLATION in workshop manual.)
  4. Vehicle control module (VCM) malfunction (built into body control module (BCM)) (Refer to applicable BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION in workshop manual.)
Repeatability verification procedure
  1. Clear the DTC recorded in the memory. (see CLEARING DTC .)
System wiring diagram
  • Not applicable