DTC P2D44-96: A/C Compressor Component Internal Failure [12/2023 - ]: Procedure

1. Check for DTCs.

   Body Electrical > Air Conditioner > Trouble Codes 

   HINT: 

   Check even when the DTCs detected for temporary failures.

   Result

   Result	Proceed to
   Only P2D44-96 is output	A
   P2D44-96 and B1422-00 are output	B
   P2D44-96 and B1471-1C are output	C
   P2D44-96 and B1472-1C are output	D
   P2D44-96 and B1474-4B are output	E
   P2D44-96 and B1474-96 are output	F

   Relevant DTC
   B1422-00	A/C Inverter Load Malfunction
   B1471-1C	A/C Inverter High Voltage Power Resource Circuit Voltage Out of Range
   B1472-1C	A/C Inverter High Voltage Output Circuit Voltage Out of Range
   B1474-4B	A/C Inverter Cooling/Heating Over Temperature
   B1474-96	A/C Inverter Component Internal Failure

Result: 

B 

GO TO DTC CHART (B1422-00). Refer to  DTC B1422-00: A/C Inverter Load Malfunction [12/2023 - ] 

Result: 

C 

GO TO DTC CHART (B1471-1C). Refer to  DTC B1471-1C: A/C Inverter High Voltage Power Resource Circuit Voltage Out of Range [12/2023 - ] 

Result: 

D 

GO TO DTC CHART (B1472-1C). Refer to  DTC B1472-1C: A/C Inverter High Voltage Output Circuit Voltage Out of Range [12/2023 - ] 

Result: 

E 

GO TO DTC CHART (B1474-4B). Refer to  DTC B1474-4B: A/C Inverter Cooling/Heating Over Temperature [12/2023 - ] 

Result: 

F 

GO TO DTC CHART (B1474-96). Refer to  DTC B1474-96: A/C Inverter Component Internal Failure [12/2023 - ] 

Result: 

A 

See step  2

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

   Body Electrical > Air Conditioner > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Compressor Target Speed	This test drives the compressor to selected target speed. (Compressor with motor assembly)	800: Min 10000: Max (every 100)	Operate with the ignition switch ON (READY) and the vehicle stopped.

   Body Electrical > Air Conditioner > Active Test 

   Tester Display
   Compressor Target Speed

2. Read the Data List according to the display on the GTS.

   Body Electrical > Air Conditioner > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Compressor Target Speed	Compressor target speed	0 to 10000 rpm	Compressor target speed displayed	Compressor operating Compressor with motor assembly
   Compressor Actual Speed	Compressor actual speed	0 to 10000 rpm	Actual compressor speed displayed	Compressor operating Compressor with motor assembly

   Body Electrical > Air Conditioner > Data List 

   Tester Display
   Compressor Target Speed
   Compressor Actual Speed

   OK

   The Compressor actual speed is approximately the same as the Compressor target speed.

   HINT: 

   The Compressor Actual Speed may not run with Compressor Target Speed due to the protection control.In this case, the compressor is working without issues if the compressor actual speed increases with Compressor Target Speed to a certain extent and runs at a constant value.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to  REMOVAL [09/2023 - ] 

Result: 

NG 

REPLACE COMPRESSOR WITH MOTOR ASSEMBLY. Refer to  REMOVAL [12/2023 - ]