Fault code lookup

NetworkU043B

Serious

Severity: Serious - have it checked soon

Invalid data received from front distance range sensor - left

20 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 20

BrandCodeDescriptionSystem
Ashok Leyland CVU043BNo description available Network
BAIC MotorU043BInvalid Data Received From Cruise Control Front Distance Range Left Sensor BrandNetwork
BYDU043BInvalid Data Received From Cruise Control Front Distance Range Left Sensor BrandNetwork
CheryU043BInvalid Data Received From Cruise Control Front Distance Range Left Sensor BrandNetwork
DaewooU043BNo description available Network
DFFSU043BInvalid Data Received From Cruise Control Front Distance Range Left Sensor BrandNetwork
DFFXU043BInvalid Data Received From Cruise Control Front Distance Range Left Sensor BrandNetwork
DFXKU043BInvalid Data Received From Cruise Control Front Distance Range Left Sensor BrandNetwork
EOBDU043BUgyldig data mottatt fra frontavstandssensor - venstre BrandNetwork
GeelyU043BInvalid Data Received From Cruise Control Front Distance Range Left Sensor BrandNetwork
GMU043BInvalid Data Received From Cruise Control Front Distance Range Left Sensor BrandNetwork
Great WallU043BInvalid Data Received From Cruise Control Front Distance Range Left Sensor BrandNetwork
HafeiU043BInvalid Data Received From Cruise Control Front Distance Range Left Sensor BrandNetwork
HoldenU043BInvalid Data Received From Cruise Control Vehicle Distance Sensor Module - Left BrandNetwork
HyundaiU043BNo description available Network
OpelU043BInvalid Data Received From Cruise Control Front Distance Range Left Sensor BrandNetwork
PeugeotU043BNo description available Network
SaabU043BInvalid Data Received From Cruise Control Front Distance Range Left Sensor BrandNetwork
MG (SAIC)U043BInvalid Data Received From Cruise Control Front Distance Range Left Sensor BrandNetwork
ToyotaU043BInvalid data received from front distance range sensor - left 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 U043xx codes.

OpenDTC - independent fault code reference