DTC P0A78-282: Drive Motor "A" Inverter Performance [10/2014 - 10/2015]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
4. Check for DTCs.

   Result

   Result	Proceed to
   P0A78-282 is stored before any of the DTCs in the table below are stored.	A
   Any of the DTCs in the table below are stored before P0A78-282 is stored.	B

   DTC No.	Relevant Diagnosis
   P3000-388	Battery Control System
   P3000-389	Battery Control System
   P3000-603	Battery Control System
   P3004-131	High Voltage Power Resource
   P3004-133	High Voltage Power Resource
   P0A9D-123	Hybrid Battery Temperature Sensor "A" Circuit Low
   P0A9E-123	Hybrid Battery Temperature Sensor "A" Circuit High
   P0AC2-123	Hybrid Battery Pack Current Sensor Circuit High
   P0AC7-123	Hybrid Battery Temperature Sensor "B" Circuit Low
   P0AC8-123	Hybrid Battery Temperature Sensor "B" Circuit High
   P0ACC-123	Hybrid Battery Temperature Sensor "C" Circuit Low
   P0ACD-123	Hybrid Battery Temperature Sensor "C" Circuit High
   P0AFC-123	Hybrid Battery Pack Sensor Module

   HINT: 

   • P0A78-282 may be stored due to a malfunction which also causes DTCs in the preceding table to be stored. In this case, first troubleshoot the output DTCs in the preceding table. Then, perform a test to attempt to reproduce the problems, and check that no DTCs are output.
   • If a DTC in the preceding table is stored during READY ON, the system will turn off the System Main Relay and an overvoltage condition may occur.
5. Turn the power switch off.

Result: 

B 

GO TO DTC CHART (HYBRID BATTERY SYSTEM) 

(Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2014 - 10/2015] )

Result: 

A 

See step  2

Refer to PROCEDURE - Step 4

Result: 

OK 

REPLACE INVERTER WITH CONVERTER ASSEMBLY 

(Refer to COMPONENTS [10/2014 - ] )

Result: 

NG 

CONNECT SECURELY