Fault code lookup

NetworkU059A

Serious

Severity: Serious - have it checked soon

Invalid data received from DC/DC converter control module B

21 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 21

BrandCodeDescriptionSystem
Ashok Leyland CVU059AHybrid Battery. Temperature Sensor. (Sensor P.) - Incorrect Or Intermittent Data BrandNetwork
BAIC MotorU059AInvalid Data Received From DC to DC Converter Control Module B BrandNetwork
Mercedes-BenzU059ANo description available Network
BYDU059AInvalid Data Received From DC to DC Converter Control Module B BrandNetwork
CheryU059AInvalid Data Received From DC to DC Converter Control Module B BrandNetwork
DaewooU059AInvalid Data Received From DC to DC Converter Control Module B BrandNetwork
DFFSU059AInvalid Data Received From DC to DC Converter Control Module B BrandNetwork
DFFXU059AInvalid Data Received From DC to DC Converter Control Module B BrandNetwork
DFXKU059AInvalid Data Received From DC to DC Converter Control Module B BrandNetwork
EOBDU059AKehtetu andme saadud DC/DC muundurijuhtimismoodulilt B BrandNetwork
GeelyU059AInvalid Data Received From DC to DC Converter Control Module B BrandNetwork
GMU059AInvalid Data Received From DC to DC Converter Control Module B BrandNetwork
Great WallU059AInvalid Data Received From DC to DC Converter Control Module B BrandNetwork
HafeiU059AInvalid Data Received From DC to DC Converter Control Module B BrandNetwork
HondaU059ANo description available Network
HyundaiU059ANo description available Network
Land RoverU059AInvalid Data Received From DC To DC Converter Control Module B BrandNetwork
PeugeotU059ANo description available Network
SaabU059AInvalid Data Received From DC to DC Converter Control Module B BrandNetwork
MG (SAIC)U059AInvalid Data Received From DC to DC Converter Control Module B BrandNetwork
ToyotaU059AInvalid data received from DC/DC converter 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 U059xx codes.

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