AutoCodes – Nissan – B1758 Nissan

B1758 Nissan Code - Soft Top Thermo Protection

Quick Answer

The Soft Top Control Unit sets the OBDII code when the soft top system is operated continuously. Common causes include Soft top system is operated continuously, Faulty Soft Top Control Unit, Soft Top Control Unit 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: B1758 Nissan indicates Soft Top Thermo Protection.
Common causes: Common causes include Soft top system is operated continuously, Faulty Soft Top Control Unit, Soft Top Control Unit 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.

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Code Popularity 783

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 27, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1758 Nissan Description

The Soft Top Control Unit sets the OBDII code when the soft top system is operated continuously.

OBDII Code B1758 Nissan - Soft Top Thermo Protection - AutoCodes.com — B1758 Nissan Code - Soft Top Thermo Protection

What does this mean?

What are the Possible Causes of the DTC B1758 Nissan?

Soft top system is operated continuously
Faulty Soft Top Control Unit
Soft Top Control Unit harness is open or shorted
Soft Top Control Unit circuit poor electrical connection

How to Fix the DTC B1758 Nissan?

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 B1758 Nissan 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 B1758 Nissan code?

Need more information on how to fix the B1758 Nissan code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1758 Nissan 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 B1758 Nissan Code

1. What is OBDII code B1758 for Nissan Soft Top Thermo Protection?

- OBDII code B1758 for Nissan Soft Top Thermo Protection indicates an issue with the soft top's thermal protection system.

2. What are the common symptoms of OBDII code B1758 in a Nissan?

- Common symptoms include the soft top failing to operate properly, not responding to commands, or displaying error messages related to temperature protection.

3. What are the potential causes of OBDII code B1758 in a Nissan?

- The code can be triggered by a faulty soft top control module, damaged wiring, a malfunctioning temperature sensor, or issues with the soft top mechanism.

4. How can I diagnose the root cause of OBDII code B1758 in my Nissan?

- Diagnosing the issue may involve testing the soft top control module, checking the wiring for any damage, verifying the temperature sensor's functionality, and inspecting the soft top mechanism for any faults.

5. Can I repair OBDII code B1758 in my Nissan at home?

- Depending on the exact cause, repairs may involve replacing the soft top control module, repairing damaged wiring, replacing the temperature sensor, or addressing issues with the soft top mechanism. Some repairs may require professional assistance.

6. Are there any safety precautions to consider when working on OBDII code B1758 in a Nissan?

- It is essential to disconnect the vehicle's battery before working on any electrical components to prevent the risk of electrical shock or damage to the vehicle's systems.

7. How do I reset OBDII code B1758 in a Nissan after making repairs?

- After addressing the underlying issue, you can reset the OBDII code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the error code.

8. What are the consequences of ignoring OBDII code B1758 in a Nissan?

- Ignoring the code can result in continued issues with the soft top operation, potential damage to other components, and may lead to safety concerns if the soft top fails to function correctly.

9. Can extreme temperatures affect the occurrence of OBDII code B1758 in a Nissan?

- Yes, extreme temperatures can impact the soft top's thermal protection system and may contribute to triggering the OBDII code B1758, especially if the system is already compromised.

10. How frequently does OBDII code B1758 occur in Nissan vehicles with soft tops?

- The occurrence of OBDII code B1758 in Nissan vehicles with soft tops can vary, but it is not an uncommon issue that may require attention to ensure proper soft top functionality.