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.
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 |
| 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 | |
If the conditions of either of these patterns are detected, a DTC will be stored.
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.
Do not touch the high-voltage connectors or terminals for 10 minutes after the service plug grip is removed.
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.
Automatic learning chart:
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.
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.
Perform the Active Test according to the display on the GTS.
| 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. |
| Tester Display |
|---|
| Control the Engine Cooling Fan |
Electric cooling fan operates smoothly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Install a manifold gauge set.
Prepare the vehicle according to the table below.
| 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) |
Read the manifold gauge pressure.
150 to 250 kPa (1.5 to 2.5 kgf/cm2, 22 to 36 psi)
1370 to 1570 kPa (14 to 16 kgf/cm2, 199 to 228 psi)
| Proceed to |
|---|
| OK |
| NG |
OK
NG