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.
- U017CGeneric · NetworkLost Communication With Restraints System Sensor M
- U017DGeneric · NetworkLost Communication With Restraints System Sensor N
- U017EGeneric · NetworkLost Communication With Seat Belt Pretensioner Module A
- U017FGeneric · NetworkLost Communication With Seat Belt Pretensioner Module B
- U0180Generic · NetworkLost Communication With Automatic Lighting Control Module
- U0181Generic · NetworkLost Communication With Headlamp Leveling Control Module A
- U0182Generic · NetworkLost Communication With Lighting Control Module - Front
- U0183Generic · NetworkLost Communication With Lighting Control Module - Rear A
- U0184Generic · NetworkLost Communication With Radio
- U0185Generic · NetworkLost Communication With Antenna Control Module
- U0186Generic · NetworkLost Communication With Audio Amplifier A
- U0187Generic · NetworkLost Communication With Digital Disc Player/Changer Module A
- U0188Generic · NetworkLost Communication With Digital Disc Player/Changer Module B
- U0189Generic · NetworkLost Communication With Digital Disc Player/Changer Module C
- U018AGeneric · NetworkLost Communication With Headlamp Leveling Control Module B
- U0190Generic · NetworkLost Communication With Digital Disc Player/Changer Module D
- U0191Generic · NetworkLost Communication With Television
- U0192Generic · NetworkLost Communication With Personal Computer
- U0193Generic · NetworkLost Communication With Digital Audio Control Module A
- U0194Generic · NetworkLost Communication With Digital Audio Control Module B
- U0195Generic · NetworkLost Communication With Subscription Entertainment Receiver Module
- U0196Generic · NetworkLost Communication With Entertainment Control Module - Rear A
- U0197Generic · NetworkLost Communication With Telephone Control Module
- U0198Generic · NetworkLost Communication With Telematic Control Module
- U0199Generic · NetworkLost Communication With Door Control Module A
- U019AGeneric · NetworkLost Communication With Tachograph Module
- U019BGeneric · NetworkLost Communication With Battery Charger Control Module A
- U019CGeneric · NetworkLost Communication With Glow Plug Control Module 2
- U019DGeneric · NetworkLost Communication With Direct Ozone Reduction Catalyst Temperature Sensor
- U019EGeneric · NetworkLost Communication With Transmission Range Control Module