DTC P0A93-00: Inverter "A" Cooling System Performance [08/2023 - ]: Procedure

Pre-procedure1

1. None.

   Procedure1

2. Check for DTCs.

   Powertrain > Hybrid Control > Trouble Codes 

   Powertrain > Engine > Trouble Codes 

   Powertrain > Motor Generator > Trouble Codes 

   Result

   Result	Proceed to
   P0A93-00 only is output, or DTCs except the ones in the table below are also output.	A
   DTCs of hybrid control system in the table below are output.	B
   DTCs of motor generator control system in the table below are output.	C

   TABLE 1
   
   

   Malfunction Content	System	Relevant DTC
   Insulation malfunction	Hybrid control system	P1C7C-49	Hybrid/EV Battery Voltage System Isolation (A/C Area) Internal Electronic Failure
   		P1C7D-49	Hybrid/EV Battery Voltage System Isolation (Hybrid/EV Battery Area) Internal Electronic Failure
   		P1C7E-49	Hybrid/EV Battery Voltage System Isolation (Transaxle Area) Internal Electronic Failure
   		P1C7F-49	Hybrid/EV Battery Voltage System Isolation (Direct Current Area) Internal Electronic Failure
   		P1C80-49	Hybrid/EV Battery Voltage System Isolation (Rear Motor Area) Internal Electronic Failure

   TABLE 2
   
   

   Malfunction Content	System	Relevant DTC
   Sensor and actuator circuit malfunction	Hybrid control system	P0C73-96	Motor Electronics Coolant Pump "A" Component Internal Failure
   		P314A-31	Motor Electronics Coolant Pump "A" No Signal
   	Motor generator control system	P0A00-11	Motor Electronics Coolant Temperature Sensor Circuit Short to Ground
   		P0A00-15	Motor Electronics Coolant Temperature Sensor Circuit Short to Battery or Open

   HINT: 

   • P0A93-00 may be output as a result of the malfunction indicated by the DTCs above.
     1. The chart above is listed in inspection order of priority.
     2. Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)

   Post-procedure1

3. Turn the ignition switch off.

Result: 

B 

GO TO DTC CHART (HYBRID CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2023 - 10/2024]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2024 - ] 

Result: 

C 

GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2023 - ] 

Result: 

A 

See step  2

Refer to PROCEDURE - Step 3

Result

Result: 

B 

CONNECT SECURELY 

Result: 

C 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

A 

See step  3

Refer to Cooling System [08/2023 - ]

HINT: 

If the "Cooling System" inspection results are normal, perform the next step.

Result

Result: 

NEXT 

REPLACE HV COOLANT. Refer to  REPLACEMENT [10/2022 - ]