DTC P31B4-00: Extreme Hybrid/EV Battery Charging Current [03/2023 - ]: Procedure

Pre-procedure1

• None

• 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

Post-procedure1

• Turn the ignition switch off.

Result: 

A 

REPLACE HYBRID VEHICLE CONTROL ECU 

Refer to REMOVAL [03/2023 - ]

Result: 

B 

GO TO DTC CHART (HYBRID BATTERY SYSTEM). Refer To  DIAGNOSTIC TROUBLE CODE CHART [03/2023 - ] 

Result: 

C 

GO TO DTC CHART (HYBRID CONTROL SYSTEM) 

Refer to DIAGNOSTIC TROUBLE CODE CHART [03/2023 - 01/2025] , or refer to DIAGNOSTIC TROUBLE CODE CHART [01/2025 - ]