AutoCodes – Mercedes-Benz – P0289 Mercedes-Benz

P0289 Mercedes-Benz Code - Cylinder 10 Injector Circuit High

Quick Answer

Code P0289 is triggered when the Engine Control Module (ECM) detects a high voltage in the Fuel Injector 10 Circuit. Common causes include Dirty Fuel Injector 10, Faulty Fuel Injector 10, Plugged Fuel Injector 10. 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: P0289 Mercedes-Benz indicates Cylinder 10 Injector Circuit High.
Common causes: Common causes include Dirty Fuel Injector 10, Faulty Fuel Injector 10, Plugged Fuel Injector 10.
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.

Save to My Repairs My Repairs

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

Code Popularity 2,767

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 15, 2019

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

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

Code P0289 Mercedes-Benz Description

Code P0289 is triggered when the Engine Control Module (ECM) detects a high voltage in the Fuel Injector 10 Circuit. During normal conditions, the ECM turns the Fuel Injectors ON and OFF in the Fuel Injection System.

OBDII Code P0289 Mercedes-Benz - Cylinder 10 Injector Circuit High - AutoCodes.com — P0289 Mercedes-Benz Code - Cylinder 10 Injector Circuit High

What does this mean?

What are the Possible Causes of the DTC P0289 Mercedes-Benz?

Dirty Fuel Injector 10
Faulty Fuel Injector 10
Plugged Fuel Injector 10
Fuel Injector #10 harness is open or shorted
Fuel Injector #10 circuit poor electrical connection

How to Fix the DTC P0289 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 does this mean?

Code Tech Notes

Clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0289 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 P0289 Mercedes-Benz code?

Need more information on how to fix the P0289 Mercedes-Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0289 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 P0289 Mercedes-Benz Code

1. What are common symptoms of OBDII code P0289 in a Mercedes-Benz related to the Cylinder 10 Injector Circuit High?

- Common symptoms include rough idling, loss of power, engine misfires, and potentially increased fuel consumption.

2. What are the possible causes of OBDII code P0289 in a Mercedes-Benz indicating an issue with the Cylinder 10 Injector Circuit High?

- Potential causes may include a faulty fuel injector in cylinder 10, wiring or connector issues, a malfunctioning Engine Control Module (ECM), or fuel system problems.

3. How can I diagnose the Cylinder 10 Injector Circuit High issue in my Mercedes-Benz triggering OBDII code P0289?

- Diagnose the problem by checking the wiring and connectors for any damage, testing the fuel injector in cylinder 10, and using a scan tool to monitor injector performance.

4. Is it safe to continue driving my Mercedes-Benz with OBDII code P0289 related to the Cylinder 10 Injector Circuit High?

- It is not recommended to drive the vehicle with this code as it can lead to further engine damage and potential safety hazards. Seek professional diagnosis and repair.

5. Can I reset the OBDII code P0289 in my Mercedes-Benz by disconnecting the battery?

- Disconnecting the battery may clear the code temporarily, but it is not a permanent solution. The underlying issue causing the code needs to be addressed for proper repair.

6. Are there any DIY repair tips for fixing OBDII code P0289 in a Mercedes-Benz with a Cylinder 10 Injector Circuit High problem?

- DIY repair tips include checking and cleaning the injector connections, inspecting the wiring harness, and ensuring proper fuel flow to the injector.

7. How much does it typically cost to repair OBDII code P0289 in a Mercedes-Benz due to a Cylinder 10 Injector Circuit High issue?

- The cost of repair can vary depending on the exact cause of the problem, but it may involve replacing a faulty fuel injector, repairing wiring issues, or addressing ECM malfunctions.

8. Can a mechanic easily fix OBDII code P0289 in a Mercedes-Benz related to the Cylinder 10 Injector Circuit High?

- A qualified mechanic with experience in Mercedes-Benz vehicles should be able to diagnose and repair the issue efficiently to ensure proper functioning of the injector circuit.

9. Will ignoring OBDII code P0289 in a Mercedes-Benz cause further damage to the engine?

- Ignoring the code can lead to engine performance issues, decreased fuel efficiency, and potential damage to other engine components over time. It is best to address the problem promptly.

10. How can I prevent OBDII code P0289 from recurring in my Mercedes-Benz after repair?

- To prevent the code from coming back, ensure regular maintenance of the fuel system, check wiring and connectors periodically, and address any issues promptly to avoid further complications.