Fault code lookup

NetworkU0246

Serious

Severity: Serious - have it checked soon

Lost communication with seat control module E

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 CVU0246No description available Network
BAIC MotorU0246Lost Communication With Seat Control Module E BrandNetwork
BYDU0246Communication with night vision system lost BrandNetwork
CheryU0246Lost Communication With Seat Control Module E BrandNetwork
DaewooU0246Lost Communication With Seat Control Module E BrandNetwork
DFFSU0246Lost Communication With Seat Control Module E BrandNetwork
DFFXU0246Lost Communication With Seat Control Module E BrandNetwork
DFXKU0246Lost Communication With Seat Control Module E BrandNetwork
EOBDU0246Kaotatud side istme juhtimismooduliga E BrandNetwork
GeelyU0246Lost Communication With Seat Control Module E BrandNetwork
GMU0246Lost Communication With Seat Control Module E BrandNetwork
Great WallU0246Lost Communication With Seat Control Module E BrandNetwork
HafeiU0246Lost Communication With Seat Control Module E BrandNetwork
HyundaiU0246No description available Network
Land RoverU0246Lost communication with the seat control module E BrandNetwork
PeugeotU0246No description available Network
SaabU0246Lost Communication With Seat Control Module E BrandNetwork
Maxus (SAIC)U0246Lost Communication With DSM BrandNetwork
MG (SAIC)U0246Lost Communication With DSM BrandNetwork
ToyotaU0246Lost communication with seat control module E 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.

5Extended variant codes 1

These 7-character codes are manufacturer-specific variants of U0246 and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzU024687Communication with control unit 'Left rear seat' has a malfunction. The message is missing. BrandNetwork

6Related codes

  • U0240 Lost communication with entrapment control module B
  • U0241 Lost Communication With Headlamp Control Module A
  • U0242 Lost Communication With Headlamp Control Module B
  • U0243 Lost Communication With Parking Assist Control Module B
  • U0244 Lost communication with running board control module A
  • U0245 Lost Communication With Entertainment Control Module - Front
  • U0247 Lost communication with seat control module F
  • U0248 Communication with PEPS lost
  • U0249 Lost Communication With Entertainment Control Module - Rear B
  • U024A Lost Communication With Interior Lighting Control Module A
  • U024B Lost communication with seat control module 'G'
  • U024C Lost communication with seat control module 'H'

Browse Uxxx codes or U024xx codes.

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