Fault code lookup

NetworkU0312

Serious

Severity: Serious - have it checked soon

Software Incompatibility With Battery Energy Control Module A

26 brands affected · Generic SAE J2012 description.

Key terms: Control module: a small computer that runs one part of the car · SAE J2012: the standard generic code list

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 26

BrandCodeDescriptionSystem
Ashok Leyland CVU0312Software Incompatibility With Battery Energy Control Module A SAENetwork
BAIC MotorU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
Mercedes-BenzU0312Software Incompatibility With Battery Energy Control Module A SAENetwork
BYDU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
CheryU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
DaewooU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
DFFSU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
DFFXU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
DFXKU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
EOBDU0312Nesuderinamumas su baterijos energijos valdymo moduliu A BrandNetwork
FordU0312Used to reset the BECM Memory after is found BrandNetwork
GeelyU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
GMU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
Great WallU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
HafeiU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
HondaU0312Software Incompatibility With Battery Energy Control Module A SAENetwork
HyundaiU0312Software Incompatibility With Battery Energy Control Module A SAENetwork
Land RoverU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
OpelU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
PeugeotU0312Software Incompatibility With Battery Energy Control Module A SAENetwork
ProtonU0312Software Incompatibility With Battery Energy Control Module A SAENetwork
SaabU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
MG (SAIC)U0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
TataU0312Software Incompatibility With Battery Energy Control Module A BrandNetwork
ToyotaU0312Software incompatibility with battery energy control module A BrandNetwork
VolkswagenU0312SAE: Software Incompatibility with Battery Energy Control Module A 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 U031xx codes.

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