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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 48 (Engine Control System Diagnosis - 2.0L (3 Of 3) (Except HEV)) >> DTC P2503: AMS No Battery Charge >> System Inspection

System Inspection

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■ Check Generator circuit 

  1. Start engine.
  2. Maintain ENG RPM of 2, 500 RPM for 2 minutes.
  3. Measure voltage between the battery terminal (+) and the battery terminal (-).

    Specification:  Approx. 12.5 ~ 14.7 V

  4. Is the measured voltage within specification?

    YES 

    NO 

    • Check the tension of the drive belt. Check ENG RPM, fuses, terminals of the battery, all terminals of the generator. Check for a damaged harness and poor connections between the generator and battery. If no problems are found repair or replace the generator. Go to "VERIFICATION OF VEHICLE REPAIR " procedure.