RM3660EC _58 Vehicle Interior _080733 HEATING / AIR CONDITIONING _0598792 AIR CONDITIONING SYSTEM(for HV Model (8ZR-FXE)) C

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for HV Model (8ZR-FXE))  B142200  A/C Inverter Load Malfunction  


DESCRIPTION

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.

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:

There is a compressor operation request.


Malfunction:

The rotational load when the compressor is operating is too large or too small.


Detection Time:

-


·

Cooling fan system

·

Refrigerant volume

·

Compressor with motor assembly


Memorized

DTC Detection Condition Combination Table
Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition There is a compressor operation request.
Malfunction The rotational load when the compressor is operating is too large. -
The rotational load when the 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 / NOTICE / HINT

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.

Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>PRECAUTION

·

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

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>PA10 HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY)>PRECAUTION



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.


·

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.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>PA10 HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY)>HOW TO PROCEED WITH TROUBLESHOOTING

·

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.

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for HV Model)>HOW TO PROCEED WITH TROUBLESHOOTING



PROCEDURE

1.PERFORM ACTIVE TEST USING GTS
a.

Perform the Active Test according to the display on the GTS.

Powertrain > Engine > Active Test
Tester Display Measurement Item Control Range Restrict Condition
Control the Engine Cooling Fan Control electric cooling fan motor OFF/Low/High Perform this test when vehicle is stopped.
Powertrain > Engine > Active Test
Tester Display
Control the Engine Cooling Fan
50004 372 26
OK:

Electric cooling fan operates smoothly.



Result:
Proceed to
OK
NG



OK

2.CHECK REFRIGERANT PRESSURE

NG

2.CHECK REFRIGERANT PRESSURE

b.

Prepare the vehicle according to the table below.

Measurement Condition:
Item Condition
Doors Fully open
A/C Switch On
Recirculation/fresh Control Switch Recirculation
Set Temperature MAX COLD
Blower Speed HI
Air Conditioning Air Inlet Temperature 25 to 35°C (77 to 95°F)


c.

Read the manifold gauge pressure.

Standard Pressure:
Low pressure side:

150 to 250 kPa (1.5 to 2.5 kgf/cm2, 22 to 36 psi)

High pressure side:

1370 to 1570 kPa (14 to 16 kgf/cm2, 199 to 228 psi)



Result:
Proceed to
OK
NG



OK

NG