KIA Niro: Electric A/C Compressor
Electric A/C Compressor body inside inspection
- Electric compressor body inside check procedure.
1) Remove the low-pressure pipe from the electric compressor.
2) Check if the copper wire and white thread inside of the compressor was contaminated.
- To check the compressor motor, measure the resistance of the 3-phase power pin.
1) If the 3-phase resistance value is out of specification, it means motor malfunction. Replace the whole compressor assembly.
Electric A/C Compressor inverter inspection
- To check the compressor inverter, measure the resistance value of the compressor's high voltage pin, low voltage pin and insulation.
(1) High voltage pin
Normal resistance value : 100 ↑
Abnormal resistance : 100 ↑
(2) Low voatage pin
- Measure CAN HIGH/LOW Resistance
- Measure terminals 2 and 5.
Normal : 120 Ω Abnormal : inverter short-circuited (=0Ω)
- Measure CAN Ground Resistance
- Measure terminals 1 and 2 / 1 and 5.
Normal : 13~14 KΩ / 200~600 KΩ (High Performance DSP Specifications) Abnormal : inverter short-circuited (=0Ω)
- Measure Interlock HIGH/LOW Resistance measure (Connect high voltage connector (A) and measure low voltage (B) 3 and 6 resistance.)
Normal : Below 1.0 Ω Abnormal : MΩ
Warning
- Compressor insulation resistance measurement.
Normal resistance value : check insulation resistance (Minimum : 100 MΩ) (@500 Vdc, no coolant)
Replacement
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Inverter kit / Body kit
Remove the battery (-) cable. Disconnect the high voltage circuit. (Refer to Generals) Use the recovery/reproduction/charging device to recover the coolant. Warning When removing the connector between the vehicle and the compressor,Condenser
Condenser Components and components location Condenser Condenser Repair procedures Inspection Check the condenser fins for clogging and damage. Clean and blow compressed air on any clogged fins. Unfold any bent fins with aA/C Pressure Transducer
A/C Pressure Transducer Components and components location A/C Pressure Transducer Description A/C pressure transducer measures the pressure in high pressure line and converts it into voltage. Based on the converted voltage, engine ECUSEE MORE:
Mass Air Flow Sensor (MAFS)
Description MAFS uses a sensing element made of a hot-film to measure the mass of intake air entering the engine and to send the signal to the ECM. A large amount of intake air represents acceleration or high load conditions while a small amHeadrest
The seats are equipped with a headrest for the occupant's safety and comfort. Adjusting the headrest Front Rear Operation Pull up the headrest to raise. Push and hold the release button (1) to lower the headrest. Adjusting tCategories
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