DTC P2503: Notes
DTC P2503 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P2503 |
Charging system voltage low |
| DETECTION CONDITION |
- PCM needs more than 20 A
from the generator, and determines that generator output voltage is below 8.5 V
while the engine is running.
Diagnostic support note
- This is a continuous monitor (Other).
- The MIL does not illuminate.
- FREEZE FRAME DATA is not available.
- DTCs are stored in the PCM memory.
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| POSSIBLE CAUSE |
- Generator malfunction
- PCM and/or generator are poorly connected
- Open and/or short to ground in the wiring harness from between generator terminal P and PCM terminal 1AB
- Open and/or short to ground in the wiring harness from between generator terminal D and PCM terminal 1AD
- Drive chain misadjustment
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 Courtesy of MAZDA MOTORS CORP.
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