Fault code lookup

NetworkU1423

Serious

Severity: Serious - have it checked soon

Dynamic Range Error

17 brands affected · Description from BYD 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 17

BrandCodeDescriptionSystem
Mercedes-BenzU1423No description available Network
BYDU1423Dynamic Range Error BrandNetwork
CheryU1423Dynamic Range Error BrandNetwork
DaewooU1423No description available Network
DFFXU1423Dynamic Range Error BrandNetwork
EOBDU1423Raadioga side kadunud BrandNetwork
GeelyU1423Dynamic Range Error BrandNetwork
GMU1423No description available Network
Great WallU1423Dynamic Range Error BrandNetwork
HafeiU1423Dynamic Range Error BrandNetwork
HoldenU1423Lost Communication with Radio BrandNetwork
MahindraU1423No description available Network
MitsubishiU1423Dynamic range error BrandNetwork
OpelU1423No description available Network
PeugeotU1423No description available Network
ProtonU1423Dynamic range error BrandNetwork
SaabU1423No description available Network

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 U142xx codes.

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