U0135

Lost Communication With Differential Control Module - Front

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

The Check Engine light comes on
Disabling the all-wheel drive system
Reduced vehicle dynamics
Other related errors appear
Transmission transition to emergency mode

Causes

Open or short circuit in wiring harness
Poor contact in differential module connectors
Malfunction of the differential control module
Module power problems
Software errors in the ECU

How to Fix

Check the integrity of the wiring harness to the differential module
Inspect and clean connector contacts
Check the power supply and ground of the module
Test the differential module using a scanner
If necessary, replace the control module

Related codes

U0131 U0136 U0140