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Home >> Kia >> 2012 >> Rio LX, 4D Hatchback, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC P0620: Alternator Control Circuit >> Inspection_Repair >> W/Harness Inspection >> C terminal Circuit Inspection

C terminal Circuit Inspection

  1. With ignition OFF, disconnect alternator connector
  2. IG KEY "ON" & ENG "OFF"
  3. Measure voltage between C terminal of the alternator harness connector and chassis ground.

    Specification:  Approx. 3.6V

    Fig 1: Measuring Voltage Between C Terminal Of Alternator Harness Connector And Chassis Ground
    G08325071Courtesy of KIA MOTORS AMERICA, INC.
    Fig 2: Identifying Alternator Connector Terminals
    G08325072Courtesy of KIA MOTORS AMERICA, INC.
  4. Is voltage within the specification?

    YES 

    Go to "COMPONENT INSPECTION " procedure.

    NO 

    Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.