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Home >> Kia >> 2010 >> Rio Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC P0646: AC Clutch Relay Control Circuit Low >> Inspection Repair >> W/Harness Inspection >> Control Circuit Inspection

Control Circuit Inspection

  1. IG "OFF".
  2. Disconnect A/C Relay.
  3. IG "ON".
  4. Measure the voltage between terminal 5 of A/C relay and ground.
    1. Specification : Approx. 11V
      Fig 1: Measuring Voltage Between Terminal 5 Of A/C Relay And Ground
      G06831057Courtesy of KIA MOTORS AMERICA, INC.
  5. Is the measured voltage within specification?

    YES

    1. Go to "COMPONENT INSPECTION " procedure.

    NO

    1. Repair Short to ground in A/C relay control circuit and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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