LEMON Manuals: Even more car manuals for everyone: 1960-2025
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 U0420-82: Error Signal Received From EPS Control Module [Vehicle Control Module] >> Outline
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U0420-82: Error Signal Received From EPS Control Module [Vehicle Control Module]: Outline

DTC U0420:82 [VEHICLE CONTROL MODULE] DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Error signal received from EPS control module
Detection condition
  • The vehicle control module (VCM) receives an error signal from the EPS control module for 10 s.
Fail-safe (See DTC TABLE [VEHICLE CONTROL MODULE (US)] .)
Possible cause
  • EPS control module malfunction
  • Vehicle control module (VCM) malfunction (built into body control module (BCM))
System wiring diagram Not applicable
Connector diagram Not applicable