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Home >> Kia >> 2009 >> Sedona Base >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures (2 Of 2) >> P0646: A/C Clutch Relay Control Circuit Low >> Monitor Scan Tool Data
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Monitor Scan Tool Data

  1. Ignition "OFF"
  2. Connect scan tool and Engine "ON"
  3. Monitor items related to "A/C" on Current Data
    Fig 1: Scan Tool Display Screen - A/C Switch
    G04883532Courtesy of KIA MOTORS AMERICA, INC.
  4. Are those related current data displayed correctly?

    YES 

    • Fault is intermittent caused by poor contact in Sensor' s and/or PCM' s connector or was repaired and PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure

    NO 

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