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Home >> Mazda >> 2017 >> 3 Sport, 4D Hatchback, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control (5 Of 5) >> DTC U0320; EPS Control Module Error >> Notes

DTC U0320; EPS Control Module Error: Notes

DETECTION CONDITION AND POSSIBLE CAUSE

DTC U0320:00 EPS control module error
DETECTION CONDITION
  • When any of the following conditions is met:
    • CAN communication line malfunction between EPS control module and PCM
      • EPS control module internal malfunction

    Diagnostic support note

  • This is a continuous monitor (other).
  • The check engine light does not illuminate.
  • FREEZE FRAME DATA (Mode 2) is not available.
  • Snapshot data is available.
  • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION Not applicable
POSSIBLE CAUSE
  • CAN drive error (EPS control module or PCM)
  • CAN communication line malfunction between EPS control module and PCM
    • EPS control module terminal 2B-Front body control module (FBCM) terminal 2P
    • EPS control module terminal 2D-Front body control module (FBCM) terminal 2N
    • Front body control module (FBCM) terminal 2R-PCM terminal 2AK
      • Front body control module (FBCM) terminal 2L-PCM terminal 2AL
  • EPS control module connector or terminals malfunction
  • Front body control module (FBCM) connector or terminals malfunction
  • PCM connector or terminals malfunction
  • EPS control module malfunction
  • PCM malfunction
G11550380