OBD-II Diagnostic Trouble Code
P0E31
Hybrid/EV Battery Coolant Flow Controller Stuck Open
P
Powertrain
engine / trans
engine / trans
0
Generic
SAE standard
SAE standard
E
Powertrain subsystem
31
Hybrid/EV Battery Coolant Flow Controller Stuck Open
Severity · general guide
Moderate
Fix soon — usually won't strand you
Code type
Generic
System
Powertrain