Fault code lookup

NetworkU0320

Serious

Severity: Serious - have it checked soon

Software Incompatibility With Power Steering Control Module

23 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

Safety: This code relates to the steering system. Power steering assistance may be reduced or fail.

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 23

BrandCodeDescriptionSystem
Ashok Leyland CVU0320Software Incompatibility With Power Steering Control Module SAENetwork
BAIC MotorU0320Software Incompatibility With Power Steering Control Module BrandNetwork
BYDU0320Software Incompatibility With Power Steering Control Module BrandNetwork
CheryU0320Software Incompatibility With Power Steering Control Module BrandNetwork
DaewooU0320Software Incompatibility With Power Steering Control Module BrandNetwork
DFFSU0320Software Incompatibility With Power Steering Control Module BrandNetwork
DFFXU0320Software Incompatibility With Power Steering Control Module BrandNetwork
DFXKU0320Software Incompatibility With Power Steering Control Module BrandNetwork
EOBDU0320Softwareinkompatibilitet med servostyringsmodul BrandNetwork
GeelyU0320Software Incompatibility With Power Steering Control Module BrandNetwork
GMU0320Software Incompatibility With Power Steering Control Module BrandNetwork
Great WallU0320Software Incompatibility With Power Steering Control Module BrandNetwork
HafeiU0320Software Incompatibility With Power Steering Control Module BrandNetwork
HoldenU0320Software Incompatibility With Power Steering Control Module BrandNetwork
HyundaiU0320Software Incompatibility With Power Steering Control Module SAENetwork
Land RoverU0320Software Incompatibility With Power Steering Control Module BrandNetwork
OpelU0320Software Incompatibility With Power Steering Control Module BrandNetwork
PeugeotU0320Software Incompatibility With Power Steering Control Module SAENetwork
SaabU0320Software Incompatibility With Power Steering Control Module BrandNetwork
MG (SAIC)U0320Software Incompatibility With Power Steering Control Module BrandNetwork
TataU0320Software Incompatibility With Power Steering Control Module BrandNetwork
ToyotaU0320Software incompatibility with power steering control module BrandNetwork
VolkswagenU0320SAE: Software Incompatibility with Power Steering Control Module 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 U032xx codes.

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