C0268 critical

Electronic Parking Brake Control Module Malfunction

The C0268 code means the vehicle's onboard diagnostic system has detected: Electronic Parking Brake Control Module Malfunction. This is a critical severity code.

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Keep driving?: Short distances only
DIY difficulty: hard
Estimated cost: $200 - $1000 (parts and labor)

Read ABS Codes

BlueDriver Bluetooth Pro Scanner

Basic scanners cannot read ABS codes. BlueDriver reads all systems including ABS, SRS, and transmission through your phone.

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Read ABS Codes

LAUNCH CRP123X (Reads ABS + Chassis)

Basic scanners cannot read ABS codes. This one reads all four systems so you know exactly which sensor failed.

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Common Symptoms

Parking brake warning light on
Electronic parking brake does not engage or release
Parking brake button unresponsive
Error message on dashboard
Vehicle may roll on inclines

Probable Causes (Ranked by Likelihood)

Electronic parking brake control module failure Very High
Wiring issue between module and parking brake actuators High
Parking brake switch or button fault Moderate
Low battery voltage affecting module operation Moderate
Module software corruption Low

Step-by-Step Diagnostic Procedure

Scan for all DTCs in the parking brake module
Check battery voltage -- electronic parking brakes require adequate power
Test the parking brake switch operation with a scan tool
Inspect wiring at the parking brake module connector
Check for software updates or TSBs for the parking brake module

Frequently Asked Questions

What is an electronic parking brake?

An electronic parking brake replaces the traditional hand lever or foot pedal with a button. Electric motors at the rear brakes apply and release the parking brake calipers, controlled by a dedicated module.

My parking brake will not release -- what do I do?

First try cycling the ignition off and back on. If the brake still will not release, consult your owner's manual for the emergency mechanical release procedure. Most vehicles have a manual release mechanism.

Can a dead battery trap the parking brake?

Yes. If the battery dies while the electronic parking brake is engaged, you may not be able to release it electrically. Most vehicles have an emergency manual release -- check your owner's manual for the location and procedure.