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
P1178
Linear Oxygen Sensor Pump Current Open Circuit
Volkswagen
Fuel and Air Metering
Medium severity
P1180
Linear Oxygen Sensor Pump Current Short To Positive
Volkswagen
Fuel and Air Metering
Medium severity
P1181
Linear Oxygen Sensor Reference Voltage Open Circuit
Volkswagen
Fuel and Air Metering
Medium severity
P1183
Linear Oxygen Sensor Reference Voltage Short To Positive
Volkswagen
Fuel and Air Metering
Medium severity
P1185
Linear Oxygen Sensor Common Ground Short To Ground
Volkswagen
Fuel and Air Metering
Medium severity
P1187
Linear O2 Sensor Compensation Resistor Open Circuit
Volkswagen
Fuel and Air Metering
Medium severity
P1188
Linear O2 Sensor Compensation Resistor Short to Ground
Volkswagen
Fuel and Air Metering
Medium severity
P1190
Linear O2 Sensor Reference Voltage Incorrect Signal
Volkswagen
Fuel and Air Metering
Medium severity
P1194
Throttle Actuator Control System Limp Home-Throttle Position Sensor 2 Position Malfunction
Volkswagen
Fuel and Air Metering
High severity
Scan your own car
Read and clear fault codes, live data and service resets with the CaRPM app.