AutoCodes – Mercedes-Benz – P0600 Mercedes-Benz

P0600 Mercedes-Benz Code - Loss of Serial Communication Link

Quick Answer

The Engine Control Module (ECM) sets the Diagnostic Trouble Code (DTC) when is unable to communicate with other control modules through the Serial Communication Link. Common causes include Low battery voltage, Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0600 Mercedes-Benz indicates Loss of Serial Communication Link.
Common causes
Common causes include Low battery voltage, Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 69,569
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Oct 02, 2020
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Code P0600 Mercedes-Benz Description

The Engine Control Module (ECM) sets the Diagnostic Trouble Code (DTC) when is unable to communicate with other control modules through the Serial Communication Link.
OBDII Code P0600 Mercedes-Benz - Loss of Serial Communication Link - AutoCodes.com
P0600 Mercedes-Benz Code - Loss of Serial Communication Link

What are the Possible Causes of the DTC P0600 Mercedes-Benz?

  • Low battery voltage
  • Faulty Engine Control Module (ECM)
  • Engine Control Module harness is open or shorted
  • Engine Control Module circuit poor electrical connection

How to Fix the DTC P0600 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 P0600 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 P0600 Mercedes-Benz code?

Need more information on how to fix the P0600 Mercedes-Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0600 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 P0600 Mercedes-Benz Code

1. What are the common symptoms of OBDII code P0600 in a Mercedes-Benz related to loss of serial communication link?

- Common symptoms include issues with starting the vehicle, rough idling, poor acceleration, and warning lights on the dashboard.

2. What are some possible causes of OBDII code P0600 in a Mercedes-Benz?

- Causes may include faulty wiring or connections, a malfunctioning control module, a damaged communication network, or a software-related issue.

3. How can I diagnose the cause of OBDII code P0600 in my Mercedes-Benz?

- Diagnose the code using a diagnostic scanner to retrieve specific details about the communication failure, inspect wiring and connectors for damage, and check for any visible signs of corrosion.

4. Can OBDII code P0600 in a Mercedes-Benz be fixed without professional help?

- Simple fixes like checking and cleaning connections may be possible without professional help, but more complex issues with control modules or communication networks may require a professional technician.

5. Is it safe to continue driving my Mercedes-Benz with OBDII code P0600 present?

- It is not recommended to drive the vehicle with this code present, as it may lead to further damage or safety issues due to potential communication failures within the vehicle's systems.

6. How much does it typically cost to repair OBDII code P0600 in a Mercedes-Benz?

- Repair costs can vary depending on the underlying cause, but they may range from a few hundred dollars for simple fixes to over a thousand dollars for more extensive repairs involving control modules or network components.

7. Are there any preventive measures to avoid OBDII code P0600 in a Mercedes-Benz?

- Regular maintenance, including checking and cleaning electrical connections, can help prevent issues leading to this code. Additionally, avoiding water damage and ensuring software updates are current may also help.

8. Can a software update resolve OBDII code P0600 in a Mercedes-Benz?

- In some cases, a software update provided by the manufacturer may address communication issues causing this code. It is advisable to consult with a professional technician to determine if this is a viable solution.

9. How long does it typically take to repair OBDII code P0600 in a Mercedes-Benz?

- The repair time can vary depending on the cause and complexity of the issue. Simple fixes may be completed within a few hours, while more involved repairs may take a day or longer to diagnose and resolve.

10. Will resetting the OBDII code P0600 in my Mercedes-Benz make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is essential to diagnose and repair the root cause to prevent future occurrences.

Discuss the causes and fixes for P0600 Mercedes-Benz OBDII Code

  • There are different P0600 codes, for example P0600 002 Antitheft, P0600 004 ESP

  • i scan the benz and i get p0600 code pls auto what can i do to fix the problm but auto i dont know the car model pls what is the problm

  • For that code you need a Mercedes Benz scanner to find the problem. The Engine Control Module is not communicating with other electrical control modules.

  • But what did you think I can do to fix the problem and I use Innova 3040a to scan the car

  • There is nothing you can do without the Mercedes scanner. You could try replacing the Engine Control Module, but that is just a guess

  • On 2001 MB CL 500 I get BAS, ESP, ABC lights and transmission stuck in park and P0600 code until engine warms up to past 80 then all trouble lights go out and its drivable.and code disappears.

  • Did ur car fix? I ave the same problem tcm not communicating with ecu

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