Fault code lookup

NetworkU0541

Serious

Severity: Serious - have it checked soon

Invalid data received from entrapment control module B

19 brands affected · Description from Toyota data.

Key terms: Control module: a small computer that runs one part of the car

1What it means in plain English

Control modules in the car cannot communicate with each other over the vehicle network.

2Common causes

  1. Wiring or connector fault on the communication bus
  2. Faulty control module
  3. Low battery voltage or poor ground
  4. Water ingress in a connector or module
  5. Aftermarket device interfering with the bus

3Can I drive?

Serious · drive with care

The car may run normally or may not run at all. If the module that has lost communication controls steering, brakes, park brake, charging or engine cooling, drive only if those systems feel normal; stop safely if the steering becomes heavy, a brake warning appears, or the engine temperature climbs. If the car will not start or runs badly, have it towed.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 19

BrandCodeDescriptionSystem
Ashok Leyland CVU0541No description available Network
BAIC MotorU0541Invalid Data Received From Entrapment Control Module B BrandNetwork
BYDU0541Invalid Data Received From Entrapment Control Module B BrandNetwork
CheryU0541Invalid Data Received From Entrapment Control Module B BrandNetwork
DaewooU0541Invalid Data Received From Entrapment Control Module B BrandNetwork
DFFSU0541Invalid Data Received From Entrapment Control Module B BrandNetwork
DFFXU0541Invalid Data Received From Entrapment Control Module B BrandNetwork
DFXKU0541Invalid Data Received From Entrapment Control Module B BrandNetwork
EOBDU0541Kehtetu andme saamine vangistuse juhtimismoodulilt B BrandNetwork
GeelyU0541Invalid Data Received From Entrapment Control Module B BrandNetwork
GMU0541Invalid Data Received From Entrapment Control Module B BrandNetwork
Great WallU0541Invalid Data Received From Entrapment Control Module B BrandNetwork
HafeiU0541Invalid Data Received From Entrapment Control Module B BrandNetwork
HyundaiU0541No description available Network
Land RoverU0541Invalid data received from the entrapment control module B BrandNetwork
PeugeotU0541No description available Network
SaabU0541Invalid Data Received From Entrapment Control Module B BrandNetwork
MG (SAIC)U0541Invalid Data Received From Entrapment Control Module B BrandNetwork
ToyotaU0541Invalid data received from entrapment control module B BrandNetwork

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Related codes

Browse Uxxx codes or U054xx codes.

OpenDTC - independent fault code reference