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Home >> Jeep >> 2004 >> Liberty Limited, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> System >> Powertrain Diagnostic Procedures >> Diagnostic Information And Procedures >> DRIVEABILITY - NGC - Diagnostic Tests >> DTC P2503: Charging System Output Low >> When Monitored And Set Condition

When Monitored And Set Condition

When Monitored: The engine running. The engine speed greater than 1157 RPM.

Set Condition: The battery sensed voltage is 1 volt below the charging goal for 13.47 seconds. The PCM senses the battery voltage turns off the field driver and senses the battery voltage again. If the voltages are the same, the code is set.