DTC P0A90-509: Drive Motor "A" Performance: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / EV / Trouble Codes.
4. Check if DTCs related to the EV control system are output.

   Result

   Result	Proceed to
   Only P0A90-509 is output or P0A90-509 and DTCs other than the ones in the table below are also output.	A
   Any of the following DTCs are also output.	B

   DTC No.	Relevant Diagnosis
   P0A1A (all INF codes)*1	Generator Control Module
   P0A1B (all INF codes)*1	Drive Motor "A" Control Module
   P0A1D (all INF codes)*1	EV Control Module
   P0A60 (all INF codes)*1	Drive Motor "A" Phase V Current
   P0A63 (all INF codes)*1	Drive Motor "A" Phase W Current
   P0A3F-243	Drive Motor "A" Position Sensor Circuit
   P0A40-500	Drive Motor "A" Position Sensor Circuit Range/Performance
   P0A41-245	Drive Motor "A" Position Sensor Circuit Low
   P0A78-202, 266, 267, 287, 505, 506, 586, 806, 807, 808	Drive Motor "A" Inverter Performance
   P0AA6 (all INF codes)*1	EV Battery Voltage System Isolation Fault
   P0C76-523	EV Battery System Discharge Time Too Long
   P3004-132	High Voltage Power Resource
   P3233-750	Open or Short to B+ in Blocking of EV Gate Connection

   HINT: 

   • *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure.
   • P0A90-509 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output.
5. Turn the power switch off.

B → See step   7 

A: Go to next step 

NG → CONNECT SECURELY 

OK: Go to next step 

B → REPLACE MALFUNCTIONING PARTS 

C → CONNECT SECURELY 

A: Go to next step 

NG → See step   5 

OK → See step   8 

B → REPLACE MALFUNCTIONING PARTS 

C → CONNECT SECURELY 

A: Go to next step 

NG → See step   10 

OK → See step   9