OBD fault code library
Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.
Free on OBD DashX
Looking for real-world repair data?
OBD DashX shows which problems come with each code, how often they show up in other vehicles, and how to fix them — step by step.
- Real-world fix data
- How often it happens
- Step-by-step repairs
Fault codes
P1150
Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction Bank 2 Sensor 1
Toyota
Fuel and Air Metering
High severity
P1155
Air/Fuel Ratio Sensor Heater Circuit Malfunction Bank 2 Sensor 1
Toyota
Fuel and Air Metering
High severity
P1157
Lack of O2 Switches Bank 2 Sensor 2 Indicates Lean
Toyota
Fuel and Air Metering
Medium severity
P1158
Lack of O2 Switches Bank 2 Sensor 2 Indicates Lean
Toyota
Fuel and Air Metering
Medium severity
P1161
Intake Air Temperature Sensor Open/Short To Positive
Toyota
Fuel and Air Metering
High severity
P1182
Linear Oxygen Sensor Reference Voltage Short To Ground
Toyota
Fuel and Air Metering
Medium severity
P1199
O2S Heater Circuit Bank 2 Sensor 2 Electrical Malfunction
Toyota
Fuel and Air Metering
Medium severity
Scan your own car
Read and clear fault codes, live data and service resets with the CaRPM app.