DTC C1259-58: HV System Regenerative Malfunction; DTC C1310-51: Malfunction in HV system [06/2015 - ]: Procedure

1. Check if a hybrid control system DTC is output.

   Refer to DTC CHECK / CLEAR [06/2015 - ]

   Powertrain > EV > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output.	A
   DTCs are output	B

Result: 

A 

REPLACE EV CONTROL ECU. Refer to  REMOVAL [06/2015 - 11/2018]  , or refer to  REMOVAL [11/2018 - ] 

Result: 

B 

INSPECT HYBRID CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2015 - ]