LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2018 >> CX-9 Signature >> Repair and Diagnosis >> Brakes >> Traction Control >> On-Board Diagnostics - Dynamic Stability Control HU/Cm >> DTC U0420-00, U0420-82, U0420-83: Signal Error From EPS Control Module >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U0420-00, U0420-82, U0420-83: Signal Error From EPS Control Module: Notes

DTC U0420:00/U0420:82/U0420:83 (DSC HU/CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

DTC U0420:00 Signal Error From EPS Control Module
U0420:82
U0420:83
DETECTION CONDITION
  • Error detected in signal from EPS control module via CAN communication.
FAIL-SAFE FUNCTION
POSSIBLE CAUSE
  • EPS control module malfunction
SYSTEM WIRING DIAGRAM -