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U0103

Overview

Code

U0103

Code Type

U

Code Class

U0

System

Network

Severity Level

High

Emissions Related

false

Drivability Impact

Major

Diagnostic Protocol

CAN

Freeze Frame Useful

false

Code Definition

Diagnostic trouble code U0103 indicates lost communication with the gear shift module

Symptoms

Gear selector not responding

Overview applies to this diagnostic code.

Affected Systems

On This Page

  • Code Definition

  • Symptoms

  • Affected Systems

  • Possible Causes

  • Diagnostic Steps

  • Drive Safety Notes​

More Resources

Transmission shift control

Possible Causes

CAN bus interruption

Diagnostic Steps

1 Check shifter module power; 2 Inspect CAN bus wiring

Drive Safety Notes

Vehicle may not shift gears

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