AutoCodes – Mercedes-Benz – P0568 Mercedes Benz

P0568 Mercedes Benz Code - Cruise Control Set Signal Malfunction

Quick Answer

The cruise control system keeps the vehicle running at a fixed speed until a signal canceling this fixed speed is received. Common causes include Faulty Cruise Control Set Switch, Cruise Control Set Switch harness is open or shorted, Cruise Control Set Switch circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: P0568 Mercedes Benz indicates Cruise Control Set Signal Malfunction.
Common causes: Common causes include Faulty Cruise Control Set Switch, Cruise Control Set Switch harness is open or shorted, Cruise Control Set Switch circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 2,479

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 13, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0568 Mercedes Benz Description

The cruise control system keeps the vehicle running at a fixed speed until a signal canceling this fixed speed is received. When the main switch is turned on with the vehicle in the running mode, the battery voltage is applied to the Engine Control Module (ECM). When a signal from the control switch is input to the ECM while the vehicle is in a state, the ECM controls fuel injection to make a car go at a steady speed you want. Also, while the system is operating, "CRUISE" indicator lamp in the meter assembly lights up. The ECM monitors the Cruise Control Set signal and sets the OBDII codes when the Cruise Control Set Switch is not to factory specifications.

OBDII Code P0568 Mercedes Benz - Cruise Control Set Signal Malfunction - AutoCodes.com — P0568 Mercedes Benz Code - Cruise Control Set Signal Malfunction

What does this mean?

What are the Possible Causes of the DTC P0568 Mercedes Benz?

Faulty Cruise Control Set Switch
Cruise Control Set Switch harness is open or shorted
Cruise Control Set Switch circuit poor electrical connection

How to Fix the DTC P0568 Mercedes Benz?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0568 Mercedes Benz code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0568 Mercedes Benz code?

Need more information on how to fix the P0568 Mercedes Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0568 Mercedes Benz code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0568 Mercedes Benz Code

1. What does the OBDII code P0568 mean for a Mercedes-Benz?

P0568 indicates a "Cruise Control Set Signal Malfunction," meaning the vehicle's cruise control system is not receiving or interpreting the "set" command signal properly.

2. What are the common symptoms of a P0568 code in a Mercedes-Benz?

Symptoms include the cruise control not engaging, the cruise control disengaging unexpectedly, or the cruise control system being entirely inoperative.

3. What causes the P0568 code to appear in a Mercedes-Benz?

Common causes include a faulty cruise control switch, damaged or corroded wiring, a bad brake pedal switch, or an issue with the Engine Control Module (ECM).

4. Can a faulty brake pedal switch trigger the P0568 code?

Yes, a malfunctioning brake pedal switch can send incorrect signals to the ECM, leading to a cruise control set signal malfunction.

5. How do I diagnose a P0568 code on my Mercedes-Benz?

Start by inspecting the cruise control switch, wiring, and connectors for damage or corrosion. Use a diagnostic scanner to confirm the code and test the functionality of the cruise control system components.

6. Is it safe to drive with the P0568 code active?

While the vehicle may still be drivable, it is not recommended to use the cruise control system until the issue is resolved, as it may not function reliably.

7. How can I fix the P0568 code on my Mercedes-Benz?

Repairs may involve replacing a faulty cruise control switch, repairing damaged wiring, cleaning corroded connectors, or recalibrating the ECM.

8. Can updating the ECM fix the P0568 code?

In some cases, an outdated ECM software version may cause communication issues. Updating the ECM software can potentially resolve the P0568 code.

9. How much does it cost to repair a P0568 code on a Mercedes-Benz?

The cost varies depending on the issue. Replacing a cruise control switch may cost $100-$300, while wiring repairs or ECM updates might range from $50 to $200.

10. Can I reset the P0568 code without fixing the issue?

Clearing the code without addressing the root cause will only result in the code returning. Proper diagnosis and repair are necessary for a permanent fix.