AutoCodes – Mercedes-Benz – P1641 Mercedes-Benz

P1641 Mercedes-Benz Code - Engine Control Module TP Signal

Quick Answer

P1641 Mercedes-Benz indicates Engine Control Module TP Signal. Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) circuit poor electrical component. 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: P1641 Mercedes-Benz indicates Engine Control Module TP Signal.
Common causes: Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) circuit poor electrical component.
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.

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Code Popularity 5,872

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 04, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1641 Mercedes-Benz Description

OBDII Code P1641 Mercedes-Benz - Engine Control Module TP Signal - AutoCodes.com — P1641 Mercedes-Benz Code - Engine Control Module TP Signal

What does this mean?

What are the Possible Causes of the DTC P1641 Mercedes-Benz?

Faulty Engine Control Module (ECM)
Engine Control Module (ECM) harness is open or shorted
Engine Control Module (ECM) circuit poor electrical component

How to Fix the DTC P1641 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 P1641 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 P1641 Mercedes-Benz code?

Need more information on how to fix the P1641 Mercedes-Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1641 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 P1641 Mercedes-Benz Code

1. What are the common symptoms of OBDII code P1641 in a Mercedes-Benz related to the Engine Control Module TP signal?

- Common symptoms include poor acceleration, rough idling, stalling, and potential loss of power.

2. What are the possible causes of OBDII code P1641 in a Mercedes-Benz triggering the Engine Control Module TP signal?

- Possible causes may include a faulty throttle position sensor, damaged wiring or connectors, or a malfunctioning Engine Control Module.

3. How can I diagnose the root cause of OBDII code P1641 in my Mercedes-Benz affecting the Engine Control Module TP signal?

- Diagnostic steps may involve checking the throttle position sensor for proper functionality, inspecting wiring for any damage, and using a scan tool to monitor sensor readings.

4. Is it safe to continue driving my Mercedes-Benz with OBDII code P1641 and the Engine Control Module TP signal issue?

- It is recommended to avoid driving the vehicle to prevent further damage and potential safety risks. Seek professional help to address the issue promptly.

5. Can I reset the OBDII code P1641 in my Mercedes-Benz without repairing the underlying cause affecting the Engine Control Module TP signal?

- While clearing the code may temporarily turn off the check engine light, the issue will likely reoccur until the root cause is properly diagnosed and repaired.

6. Are there any DIY repair tips for addressing OBDII code P1641 in a Mercedes-Benz linked to the Engine Control Module TP signal?

- DIYers can start by inspecting the throttle position sensor and its wiring for visible damage. However, complex repairs or component replacements may require professional assistance.

7. How much can I expect to pay for repairing OBDII code P1641 in a Mercedes-Benz associated with the Engine Control Module TP signal?

- Repair costs can vary depending on the exact cause of the issue and the labor rates in your area. It's advisable to obtain quotes from reputable mechanics for an accurate estimate.

8. Will fixing OBDII code P1641 affecting the Engine Control Module TP signal improve the overall performance of my Mercedes-Benz?

- Yes, addressing this code can help restore proper engine performance, smooth out idling, and enhance overall driving experience in your Mercedes-Benz.

9. Can extreme weather conditions impact the occurrence of OBDII code P1641 related to the Engine Control Module TP signal in a Mercedes-Benz?

- Yes, extreme temperatures or humidity levels can sometimes exacerbate sensor malfunctions or electrical issues, leading to the triggering of this code.

10. How frequently should I have my Mercedes-Benz inspected to prevent OBDII code P1641 and other potential issues with the Engine Control Module TP signal?

- Regular maintenance checks, including inspecting sensors and engine components, are recommended as part of scheduled servicing to detect and address issues before they escalate.