Kia Rio: Controller / Heater & A/C Control Unit (MANUAL)

Components and components location Components Connector Pin Function No. Connector A Connector B 1 Battery ⁻ 2 ISG battery (+) ⁻ 3 Illumination (+) ⁻ 4 Sensor (REF) (+) Defogging actuator Feedback 5 Mode control actuator Feedback Defogging actuator (Open) 6 Temperature control actuator Feedback Defogging actuator (Close) 7 Intake actuator Feedback ⁻ 8 Evapoerator sensor (+) ⁻ 9 Ambient sensor (+) ⁻ 10 Mode control actuator (VENT) ⁻ 11 Mode control actuator (DEF) Defog current 12 Temperature control actuator (COOL) Defog temperature 13 Temperature control actuator (WARM) Defog sck 14 Intake actuator (FRE) Defog data 15 Intake actuator (REC) ⁻ 16 HTD Ground 17 Rear defog switch 18 ⁻ 19 ⁻ 20 Illumination (-) 21 IGN2 22 IGN1 23 Blower motor (+) 24 Photo sensor (-) 25 ⁻ 26 ⁻ 27 ⁻ 28 PTC relay 3 29 PTC relay 2 30 PTC on signal 31 Detent out (-) 32 ⁻ 33 Chassis_CAN (High) 34 Chassis_CAN (Low) 35 FET (Drain hose Feedback) 36 FET (Gate) 37 ECV (+) 38 ECV (-) 39 Sensor ground 40 Ground Schematic diagrams Schematic Diagrams Repair procedures Self Diagnosis 1.