AutoCodes – Mercedes-Benz – P0709 Mercedes-Benz

P0709 Mercedes-Benz Code - Transmission Range Sensor Circuit Intermittent

Quick Answer

The park/neutral position (PNP) switch includes a transmission range switch. Common causes include Faulty Park/neutral position switch, Misadjusted park/neutral position switch, Park/neutral position switch 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: P0709 Mercedes-Benz indicates Transmission Range Sensor Circuit Intermittent.
Common causes: Common causes include Faulty Park/neutral position switch, Misadjusted park/neutral position switch, Park/neutral position switch 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.

Save to My Repairs My Repairs

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

Code Popularity 3,701

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 May 08, 2019

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 P0709 Mercedes-Benz Description

The park/neutral position (PNP) switch includes a transmission range switch. The transmission range switch detects the selector lever position when the shift lever is in the N or P shift position and sends a signal to the Transmission Control Module (TCM).

OBDII Code P0709 Mercedes-Benz - Transmission Range Sensor Circuit Intermittent - AutoCodes.com — P0709 Mercedes-Benz Code - Transmission Range Sensor Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P0709 Mercedes-Benz?

Faulty Park/neutral position switch
Misadjusted park/neutral position switch
Park/neutral position switch harness is open or shorted
Park/neutral position switch circuit poor electrical connection

How to Fix the DTC P0709 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 P0709 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 P0709 Mercedes-Benz code?

Need more information on how to fix the P0709 Mercedes-Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0709 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 P0709 Mercedes-Benz Code

1. What are the common symptoms of OBDII code P0709 in a Mercedes-Benz related to the Transmission Range Sensor Circuit Intermittent issue?

The common symptoms include issues with shifting gears, hesitation or jerking when accelerating, and the vehicle not starting.

2. What are some possible causes of the OBDII code P0709 in a Mercedes-Benz?

Possible causes include a faulty transmission range sensor, damaged wiring or connectors in the circuit, or issues with the transmission control module.

3. How can I diagnose the Transmission Range Sensor Circuit Intermittent issue in my Mercedes-Benz?

Diagnosis typically involves using a scan tool to read the OBDII code, inspecting the wiring and connectors for damage, and testing the transmission range sensor for proper functioning.

4. Can I continue driving my Mercedes-Benz with the P0709 code present?

It is not recommended to continue driving with the P0709 code present, as it can lead to further transmission problems and potential safety hazards.

5. What are some repair tips for resolving the Transmission Range Sensor Circuit Intermittent issue in a Mercedes-Benz?

Repair tips may include replacing the transmission range sensor, repairing damaged wiring or connectors, and resetting the transmission control module.

6. How much does it typically cost to repair the Transmission Range Sensor Circuit Intermittent issue in a Mercedes-Benz?

The cost of repair can vary depending on the specific cause of the issue, but it may range from a few hundred to a couple thousand dollars, including parts and labor.

7. Can I reset the OBDII code P0709 in my Mercedes-Benz myself?

You can attempt to clear the code using an OBDII scanner, but it is important to diagnose and repair the underlying issue to prevent the code from reoccurring.

8. Is the Transmission Range Sensor Circuit Intermittent issue a common problem in Mercedes-Benz vehicles?

While not extremely common, issues with the transmission range sensor circuit can occur in Mercedes-Benz vehicles, particularly in older models or vehicles with high mileage.

9. How long does it typically take to repair the Transmission Range Sensor Circuit Intermittent problem in a Mercedes-Benz?

The repair time can vary depending on the extent of the issue and availability of parts, but it may take a few hours to a full day to complete the repair.

10. Can I prevent the OBDII code P0709 from appearing in my Mercedes-Benz?

Regular maintenance, such as checking and replacing transmission fluid as needed, can help prevent issues with the transmission range sensor circuit and reduce the likelihood of the P0709 code appearing.