DTC P31B4-00: Extreme Hybrid/EV Battery Charging Current [07/2020 - ]: Procedure

1. Check for DTCs.

   Powertrain > HV Battery > Trouble Codes 

   Powertrain > Hybrid Control > Trouble Codes 

   Result

   Result	Proceed to
   "P31B4-00" only is output.	A
   DTCs except "P31B4-00" of hybrid battery system are output.	B
   DTCs except "P31B4-00" of hybrid control system are output.	C

2. Turn the ignition switch off.

Result: 

A 

REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  REMOVAL [07/2020 - 10/2022]  , or refer to  REMOVAL [10/2022 - ] 

Result: 

B 

GO TO DTC CHART (HYBRID BATTERY SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [07/2020 - ] 

Result: 

C 

GO TO DTC CHART (HYBRID CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [07/2020 - ]