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Home >> Mazda >> 2011 >> 2 Touring, 1.5 Z, Standard >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System MZR 1.5] >> DTC P2502:00 >> Notes

DTC P2502:00: Notes

DTC P2502:00 (MZR 1.5) DETECTION CONDITION AND POSSIBLE CAUSES

DTC P2502:00 Charging system voltage problem
DETECTION CONDITION 
  • The PCM determines that the generator output voltage is 17 V or more  or the battery voltage is 11 V or less for 5 s  while the engine running.

    Diagnostic support note 

  • This is a continuous monitor (other).
  • The MIL does not illuminate.
  • FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • Battery malfunction
  • Generator terminal B installation nut looseness
  • Battery positive terminal looseness
  • Short to ground or open circuit in battery charging circuit
    • Short to ground in wiring harness between STR 250 A fuse and generator terminal B
    • STR 250 A fuse malfunction
    • Open circuit in wiring harness between battery positive terminal and generator terminal B
  • Generator malfunction
  • PCM malfunction
G06940419