OBD-II Diagnostic Trouble Code
P0B42
Hybrid/EV Battery Pack Fan Control “A” Circuit Range/Performance
P
Powertrain
engine / trans
engine / trans
0
Generic
SAE standard
SAE standard
B
Hybrid propulsion
42
Hybrid/EV Battery Pack Fan Control “A” Circuit Range/Performance
Severity · general guide
Moderate
Fix soon — usually won't strand you
Code type
Generic
System
Powertrain