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U0102

Overview

Code

U0102

Code Type

U

Code Class

U0

System

Network

Severity Level

Medium

Emissions Related

false

Drivability Impact

Minor

Diagnostic Protocol

CAN

Freeze Frame Useful

false

Code Definition

Diagnostic trouble code U0102 indicates lost communication with the transfer case control module

Symptoms

4WD inoperative

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

Drivetrain communication network

Possible Causes

Module power failure

Diagnostic Steps

1 Verify module power supply; 2 Inspect network wiring

Drive Safety Notes

Four-wheel drive unavailable

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