Network fault codes
1534 Network 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.
- U011EGeneric · NetworkLost Communication With Throttle Actuator B Control Module
- U011FGeneric · NetworkLost Communication With V2X Module
- U0120Generic · NetworkLost Communication With Starter / Generator Control Module
- U0121Generic · NetworkLost Communication With Anti-Lock Brake System (ABS) Control Module A
- U0121Audi · NetworkA dead battery, A faulty ABS module, A problem with ABS module circuit, A problem with the CAN bus
- U0122Generic · NetworkLost Communication With Vehicle Dynamics Control Module
- U0123Generic · NetworkLost Communication With Yaw Rate Sensor Module
- U0124Generic · NetworkLost Communication With Lateral Acceleration Sensor Module
- U0125Generic · NetworkLost Communication With Multi-axis Acceleration Sensor Module A
- U0126Generic · NetworkLost Communication With Steering Angle Sensor Module
- U0127Generic · NetworkLost Communication With Tire Pressure Monitor Module
- U0128Generic · NetworkLost Communication With Park Brake Control Module
- U0129Generic · NetworkLost Communication With Brake System Control Module A
- U012AGeneric · NetworkLost Communication With Chassis Control Module A
- U012BGeneric · NetworkLost Communication With Chassis Control Module B
- U012CGeneric · NetworkLost Communication With Active Vibration Control Module
- U012DGeneric · NetworkLost Communication With Generator A Control Module
- U012EGeneric · NetworkLost Communication With Camshaft Position Control Module
- U012FGeneric · NetworkLost Communication With Generator B Control Module
- U0130Generic · NetworkLost Communication With Steering Effort Control Module
- U0131Generic · NetworkLost Communication With Power Steering Control Module A
- U0132Generic · NetworkLost Communication With Suspension Control Module A
- U0133Generic · NetworkLost Communication With Active Roll Control Module
- U0134Generic · NetworkLost Communication With Power Steering Control Module - Rear
- U0135Generic · NetworkLost Communication With Differential Control Module - Front
- U0136Generic · NetworkLost Communication With Differential Control Module - Rear
- U0137Generic · NetworkLost Communication With Trailer Brake Control Module
- U0138Generic · NetworkLost Communication With All Terrain Control Module
- U0139Generic · NetworkLost Communication With Suspension Control Module B
- U013CGeneric · NetworkLost Communication With Accelerator Pedal Module