OBD-II Diagnostic Trouble Code
P0135
AIR fuel ratio (A/F) sensor (sensor 1) heater circuit malfunction
P
Powertrain
engine / trans
engine / trans
0
Generic
SAE standard
SAE standard
1
Fuel & air metering
35
AIR fuel ratio (A/F) sensor (sensor 1) heater circuit…
Severity · general guide
Moderate
Fix soon — usually won't strand you
Code type
Generic
System
Powertrain