Generic fault codes
9415 Generic OBD-II fault codes: what each one means, and how to track it down.
How to read a code
- P
- SystemPowertrain
- 0
- Defined bySAE, the same on every car
- 4
- AreaAuxiliary emission controls
- 20
- FaultThe specific fault in that area
Read the code
Note every stored and pending code your scanner shows, such as P0420.
Find it
Search by code or by words. For a manufacturer code (P1, B1, C1, U1) pick your make: its meaning differs by make.
Open the code
Its page explains the symptoms, likely causes, the checks to run and the fixes.
- U060CGeneric · NetworkLost Communication With Turbocharger/Supercharger Boost Sensor B
- U060DGeneric · NetworkLost Communication With Turbocharger/Supercharger Boost Sensor C
- U060EGeneric · NetworkLost Communication With Crankcase Pressure Sensor
- U060FGeneric · NetworkLost Communication With Mass or Volume Air Flow Sensor A
- U0610Generic · NetworkLost Communication With Mass or Volume Air Flow Sensor B
- U0611Generic · NetworkLost Communication With Intake Air Temperature Sensor 1 Bank 1
- U0612Generic · NetworkLost Communication With Intake Air Temperature Sensor 1 Bank 2
- U0613Generic · NetworkLost Communication With Intake Air Temperature Sensor 2 Bank 1
- U0614Generic · NetworkLost Communication With Intake Air Temperature Sensor 2 Bank 2
- U0615Generic · NetworkLost Communication With Engine Coolant Bypass Valve A
- U0616Generic · NetworkLost Communication With Engine Coolant Bypass Valve B
- U0617Generic · NetworkLost Communication With Engine Coolant Bypass Valve C
- U0618Generic · NetworkLost Communication With Engine Coolant Bypass Valve D
- U0619Generic · NetworkLost Communication With Reductant Level Sensor A
- U061AGeneric · NetworkLost Communication With Reductant Level Sensor B
- U061BGeneric · NetworkLost Communication With Reductant Level Sensor C
- U061CGeneric · NetworkLost Communication With Reductant Temperature Sensor A
- U061DGeneric · NetworkLost Communication With Reductant Temperature Sensor B
- U061EGeneric · NetworkLost Communication with Battery Isolation/Voltage Stabilization Control Module
- U061FGeneric · NetworkLost Communication With Exhaust Gas Temperature Sensor Bank 1 Sensor 1
- U0620Generic · NetworkLost Communication With Exhaust Gas Temperature Sensor Bank 1 Sensor 2
- U0621Generic · NetworkLost Communication With Exhaust Gas Temperature Sensor Bank 2 Sensor 1
- U0622Generic · NetworkLost Communication With Exhaust Gas Temperature Sensor Bank 2 Sensor 2
- U0623Generic · NetworkLost Communication With Coolant Pump “A”
- U0624Generic · NetworkLost Communication With Coolant Pump “B”
- U0625Generic · NetworkLost Communication With Fuel Rail Pressure Sensor Bank 1
- U0626Generic · NetworkLost Communication With A/C Refrigerant Pressure Sensor “A”
- U0627Generic · NetworkLost Communication With A/C Refrigerant Temperature Sensor “A”
- U0628Generic · NetworkLost Communication With A/C Refrigerant Pressure Sensor “B”
- U0629Generic · NetworkLost Communication With A/C Refrigerant Temperature Sensor “B”