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Home >> Mazda >> 2024 >> CX-90 PHEV Preferred >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Motor Systems >> On-Board Diagnostic - Drive Motor Control Module (With MAZDA M Hybrid Boost) >> DTC U0120-00: Can Communication System: Communication Error With Drive Motor Control Module
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DTC U0120-00: Can Communication System: Communication Error With Drive Motor Control Module

U0120: 00 (SGC2/DMCM (WITH MAZDA M HYBRID BOOST)) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location CAN communication system: Communication error with drive motor control module
Detection condition
  • The drive motor control module detects that the Mazda M Hybrid Boost battery stores the following DTCs.
    • U0120: 81
Fail-safe
  • Not applicable
Possible cause
  1. DTCs are stored in the Mazda M Hybrid Boost battery. (See DTC TABLE [MHB (WITH Mazda M Hybrid BOOST)] .)
    NOTE:
    • When the Mazda M Hybrid Boost battery stores a service code, the drive motor control module stores an equivalent service code.
    • If the drive motor control module stores a service code even though the Mazda M Hybrid Boost battery does not store the service code, it is a past failure and the service code is erased to complete the repair.
Repeatability verification procedure
  1. Clear the DTC recorded in the memory. (See CLEARING DTC .)
System wiring diagram
  • Not applicable