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Home >> Kia >> 2023 >> Telluride EX X-Line >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (11 Of 13) >> DTC P0646-00: A/C Clutch Relay Control Circuit Low >> General Description

DTC P0646-00: A/C Clutch Relay Control Circuit Low: General Description

When the A/C activation signal is received, the PCM activates the relay to drive the compressor.