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HOMESERVICE MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 550 (ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM L3))DTC P2503 [L3]NOTES
2010 Mazda 5 Sport, 2.3 L, Standard

DTC P2503 [L3]: Notes

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Notes
WARNING: This page is about a different car, the 2008 Mazda 5. However, it is still accessible from the selected car via links, so may be relevant.
DTC P2503 [L3] DETECTION CONDITIONS AND POSSIBLE CAUSES

DTC P2503 Charging system voltage low
DETECTION CONDITION 
  • PCM needs more than 20 A from generator, and judges generator output voltage to be below 8.5 V  during engine running.

Diagnostic support note 
  • This is a continuous monitor (Other).
  • The MIL does not illuminate.
  • FREEZE FRAME DATA is not available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • Generator malfunction
  • PCM and/or generator are poorly connected
  • Open and/or short to ground in the wiring from between generator terminal P and PCM terminal 2AF
  • Open and/or short to ground in wiring the from between generator terminal D and PCM terminal 2AA
  • Drive belt misadjustment
G05542996
RENDER: 1.0x

NO RELATED

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