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DTC U0320 00: EPS Control Module Error: Notes

DTC U0320 00 DETECTION CONDITIONS AND POSSIBLE CAUSES (SKYACTIV-G 2.0, SKYACTIV-G 2.5)

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 2K
    • EPS control module terminal 2D-Front body control module (FBCM) terminal 2I
    • Front body control module (FBCM) terminal 2P-PCM terminal 2AK
    • Front body control module (FBCM) terminal 2N-PCM terminal 2AL
  • EPS control module connector or terminals malfunction
  • PCM connector or terminals malfunction
  • EPS control module malfunction
  • PCM malfunction
G09794756Courtesy of MAZDA MOTORS CORP.