Skip to content

Network communication

U0103

Code meaning and manufacturer information

OBD-II / DTC

Reference meaning

What does this code mean?

The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.

A code identifies a detected condition, not a part that must automatically be replaced.

Narrow by vehicle

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Before replacing a part

Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.

Scan worksheet →

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

View all ↗

Manufacturer communications

25

Original wording in English

View all ↗

SSM 54452 ↗

LINCOLN

Some 2025-2026 Aviator vehicles may exhibit diagnostic trouble code (DTC) U0103:00:80 stored in the powertrain control module (PCM) when a diagnostic self-test is performed. This may be due to a software update delivered via over the air (OTA). If multiple DTCs are present due to other concerns, diagnose those prior to addressin…

9100437Rev1 ↗

JEEP

The service shifter message comes on in the cluster and the lever gets stuck in park "P" and it can be present the follwoing DTC: - U11E3 - TCM Lost communication with ESM on D-PT CAN - U0103 - Lost communication with Electric Gear Shift Module - U0101- Lost communication with DTCM - U0418 - Implausible Data Received From Brake …

23-033-25 ↗

JEEP

Not applicable to vehicles built for US market. Multiple Systems Repair Bundle Campaign Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● U11E3-00 - TCM Lost Communication With ESM On DPT CAN. ● B15A1-00 - Med…

No. 62-25 ↗

PORSCHE

Technical information for White Message “Paddle Emergency Operation” in the Instrument Cluster / Fault Memory Entries “U010300” and “B19DFF0” in the Transmission Electronics Control Unit (Tiptronic)

Check vehicle applicability

55

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

View all ↗

MakeModelModel year
AudiA8 ↗2013
AudiA8 ↗2012
AudiA8 ↗2011
AudiA8 ↗2010
Chrysler200 ↗2015
Chrysler300 ↗2021
ChryslerPACIFICA ↗2017
DodgeCHALLENGER ↗2021

Can I keep driving?

A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.