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DTC P2502:00: Notes

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

    Diagnostic support note 

  • This is a continuous monitor (other).
  • The MIL does not illuminate.
  • FREEZE FRAME DATA (Mode2)/Snapshot data is not available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • MAIN 125 A fuse malfunction
  • Short to ground circuit in wiring harness at downstream circuit for MAIN 125 A fuse
  • Battery malfunction
  • Looseness generator terminal B installation nut
  • Generator malfunction
  • Open circuit in wiring harness between generator terminal B and battery positive terminal
  • PCM malfunction
G08142345