HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for HEV Model)  B142200  A/C Inverter Load Malfunction  

The operation of the compressor with motor assembly is stopped and this DTC is stored if the rotation load is too large or too small while the compressor with motor assembly is operating.

Also, the compressor control may not return to normal until the ignition switch is turned off.

HINT:

Possible causes are refrigerant leaks, overcharged refrigerant, insufficient cooling due to a condenser fan circuit malfunction, or compressor lock.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Memory
B142200	A/C Inverter Load Malfunction	Diagnosis Condition: Compressor operation is commanded Malfunction Status: Motor rotation load while compressor is operating is too large or too small Detection Time: None	· Cooling fan system · Refrigerant volume · Compressor with motor assembly	Memorized

DTC Detection Condition Combination Table

		Vehicle Condition
		Pattern 1	Pattern 2
Diagnosis Condition	Compressor operation is commanded	○	○
Malfunction	Motor rotation load while compressor is operating is too large	○	-
	Motor rotation load while compressor is operating is too small	-	○
Detection Time		-	-
Trip Count		1 trip	1 trip

HINT:

If the conditions of either of these patterns are detected, a DTC will be stored

CAUTION:

·

Before inspecting the high-voltage system, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.

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·

Do not touch the high-voltage connectors or terminals for 10 minutes after the service plug grip is removed.

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NOTICE:

·

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

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·

When the cable is disconnected from the negative (-) auxiliary battery terminal, the memory of various systems will be cleared. Because of this, be sure to make a record of the contents memorized in each system before starting work. When work is finished, adjust each system to its previous state.

·

The hybrid control system and air conditioning system output DTCs separately. Perform troubleshooting for the hybrid control system first if DTCs for both systems are output simultaneously.

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·

The air conditioning system uses the CAN communication system. Inspect the communication functions by following How to Proceed with Troubleshooting. Troubleshoot the air conditioning system after confirming that the communication systems are functioning properly.

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