AutoCodes – Generic – B171D

B171D Code - Soft Top Switching Valve 2

Quick Answer

The Soft Top Control Unit sets the OBDII code when the Switching Valve 2 circuit is open, short to ground or short to power. Common causes include Faulty Switching Valve 2, Switching Valve 2 harness is open or shorted, Switching Valve 2 circuit poor electrical connection. 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: B171D indicates Soft Top Switching Valve 2.
Common causes: Common causes include Faulty Switching Valve 2, Switching Valve 2 harness is open or shorted, Switching Valve 2 circuit poor electrical connection.
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 1,524

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 Jun 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B171D Description

The Soft Top Control Unit sets the OBDII code when the Switching Valve 2 circuit is open, short to ground or short to power.

OBDII Code B171D - Soft Top Switching Valve 2 - AutoCodes.com — B171D Code - Soft Top Switching Valve 2

What does this mean?

What are the Possible Causes of the DTC B171D?

Faulty Switching Valve 2
Switching Valve 2 harness is open or shorted
Switching Valve 2 circuit poor electrical connection
Faulty Soft Top Control Unit

How to Fix the DTC B171D?

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 B171D 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 B171D code?

Need more information on how to fix the B171D code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B171D code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B171D Nissan — Soft Top Switching Valve 2

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 B171D Code

1. What are the common symptoms of OBDII code B171D related to the Soft Top Switching Valve 2?

- The common symptoms include issues with the convertible soft top operation, such as failure to open or close properly.

2. What could cause OBDII code B171D indicating a problem with the Soft Top Switching Valve 2?

- The code may be triggered by a malfunction in the soft top switching valve itself, wiring issues, or a faulty control module.

3. How can I diagnose the cause of OBDII code B171D related to the Soft Top Switching Valve 2?

- To diagnose the issue, you can perform a visual inspection of the soft top mechanism, check the wiring for any damage, and use an OBDII scanner to gather more specific diagnostic information.

4. Is it safe to drive my vehicle with OBDII code B171D associated with the Soft Top Switching Valve 2?

- It is generally safe to drive the vehicle with this code, but it's recommended to address the issue promptly to avoid potential soft top operation problems.

5. Can I reset OBDII code B171D related to the Soft Top Switching Valve 2 on my own?

- You can attempt to clear the code with an OBDII scanner, but it's crucial to investigate and fix the underlying issue to prevent the code from reoccurring.

6. What are some DIY repair tips for addressing OBDII code B171D linked to the Soft Top Switching Valve 2?

- DIY repair tips may include checking and securing the wiring connections, inspecting the soft top mechanism for any obstructions, and testing the functionality of the switching valve.

7. How much does it typically cost to repair OBDII code B171D associated with the Soft Top Switching Valve 2 at a professional auto repair shop?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve replacement of the switching valve, repair of wiring, or reprogramming of the control module.

8. Are there any recalls or technical service bulletins related to OBDII code B171D and the Soft Top Switching Valve 2?

- It's recommended to check with the vehicle manufacturer or authorized service centers for any relevant recalls or technical service bulletins addressing this specific OBDII code.

9. Can extreme weather conditions or water exposure cause OBDII code B171D related to the Soft Top Switching Valve 2?

- Yes, extreme weather conditions or water exposure can potentially lead to issues with the soft top mechanism and trigger the OBDII code B171D.

10. How important is it to fix OBDII code B171D associated with the Soft Top Switching Valve 2 promptly?

- It is important to address the issue promptly to ensure the proper functioning of the convertible soft top and prevent any potential safety hazards or further damage to the system.