Fault code lookup

NetworkU020C

Serious

Severity: Serious - have it checked soon

Lost Communication With Wireless Accessory Charging Module A

9 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 charging system. The battery may go flat and the car may stall.

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 9

BrandCodeDescriptionSystem
Ashok Leyland CVU020CLost Communication With Wireless Accessory Charging Module A SAENetwork
DaewooU020CLost Communication With Wireless Accessory Charging Module A SAENetwork
EOBDU020CZudusi saziņa ar bezvadu piederumu uzlādes moduli 'A' BrandNetwork
GMU020CLost Communication With Wireless Accessory Charging Module A SAENetwork
HoldenU020CLost Communication With Wireless Accessory Charging Module A SAENetwork
OpelU020CLost Communication With Wireless Accessory Charging Module A SAENetwork
PeugeotU020CLost Communication With Wireless Accessory Charging Module A SAENetwork
SaabU020CLost Communication With Wireless Accessory Charging Module A SAENetwork
ToyotaU020CLost communication with wireless accessory charging 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.

5Extended variant codes 4

These 7-character codes are manufacturer-specific variants of U020C and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzU020C82Communication with control unit 'INDUCTIVE CHARGING' has a malfunction. Counter error. BrandNetwork
Mercedes-BenzU020C83Communication with control unit 'INDUCTIVE CHARGING' has a malfunction. CRC error. BrandNetwork
Mercedes-BenzU020C86Communication with control unit 'INDUCTIVE CHARGING' has a malfunction. Signal error. BrandNetwork
Mercedes-BenzU020C87Communication with control unit 'INDUCTIVE CHARGING' has a malfunction. Missing message. BrandNetwork

6Related codes

  • U0200 Lost Communication With Door Control Module B
  • U0201 Lost Communication With Door Control Module C
  • U0202 Lost Communication With Door Control Module D
  • U0203 Lost Communication With Door Control Module E
  • U0204 Lost Communication With Door Control Module F
  • U0205 Lost communication with door control module G
  • U0206 Lost Communication With Folding Top Control Module
  • U0207 Lost Communication With Moveable Roof Control Module A
  • U0208 Lost Communication With Seat Control Module A
  • U0209 Lost Communication With Seat Control Module B
  • U020A Lost communication with moveable roof control module 'B'
  • U020B Lost communication with 'door control module H'

Browse Uxxx codes or U020xx codes.

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