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
Browse codes on OBD DashX No sign-up needed · available in 10 languages
P1177 Synchronization Fault
Toyota Ignition System High severity
P1179 Linear Oxygen Sensor Pump Current Short To Ground
Toyota Fuel and Air Metering Medium severity
P1180 Fuel Delivery System Malfunction Low
Toyota Fuel and Air Metering High severity
P1181 Fuel Delivery System Malfunction High
Toyota Fuel and Air Metering High severity
P1183 Engine Oil Temperature Sensor Circuit Malfunction
Toyota Fuel and Air Metering Medium severity
P1184 Engine Oil Temperature Out Of Self Test Range
Toyota Fuel and Air Metering Medium severity
P1186 Fuel Pump Temperature Sensor Low
Toyota Fuel and Air Metering Medium severity
P1187 Variant Selection
Toyota Injector Circuit High severity
P1188 Calibration Memory Fault
Toyota Computer Output Circuit High severity
P1189 Pump Speed Signal Fault
Toyota Computer Output Circuit High severity
P1191 Key Line Voltage
Toyota Computer Output Circuit High severity
P1193 EGR Drive Overcurrent
Toyota Computer Output Circuit High severity
P1198 Pump Rotor Control Underfueling
Toyota Injector Circuit High severity
P1202 Fuel System Failure Caused No 2 Cylinder Misfire
Toyota Injector Circuit High severity

Search fault codes

Scan your own car

Read and clear fault codes, live data and service resets with the CaRPM app.