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DTC P2502: Notes

DTC P2502 [L3 WITH TC] DETECTION CONDITION AND POSSIBLE CAUSE

DTC P2502

Charging system voltage problem

DETECTION CONDITION

PCM determines that the generator output voltage is above 17 V or the battery voltage is below 11V 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.

POSSIBLE CAUSE

Open circuit between generator terminal B and battery positive terminal
Battery malfunction
Generator malfunction
PCM is poorly connected
PCM, generator and/or battery are poorly connected

G04954420

Courtesy of MAZDA MOTORS CORP.