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DTC P2504: Notes

DETECTION CONDITION AND POSSIBLE CAUSE (DTC P2504)

DTC P2504 Charging system voltage high
DETECTION CONDITION 
  • PCM judges generator output voltage is above 18.5 V  or battery voltage is above 16.0 V  during engine running.
Diagnostic support note 
  • This is a continuous monitor (Other).
  • The MIL does not illuminate.
  • PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • Short to power circuit between generator connector terminal D and PCM connector terminal 2AI
  • Generator malfunction
  • PCM and/or generator are poorly connected
G04317746Courtesy of MAZDA MOTORS CORP.