OBD-II Diagnostic Trouble Code
P0203
Injector Circuit/Open Cylinder 3
P
Powertrain
engine / trans
engine / trans
0
Generic
SAE standard
SAE standard
2
Fuel & air metering (injector)
03
Injector Circuit/Open Cylinder 3
Severity · general guide
Moderate
Fix soon — usually won't strand you
Code type
Generic
System
Powertrain