AutoCodes – Nissan – B177C Nissan

B177C 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: B177C 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 2,736

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 Oct 16, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B177C Nissan Description

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

OBDII Code B177C Nissan - Soft Top Thermo Protection - AutoCodes.com — B177C Nissan Code - Soft Top Thermo Protection

What does this mean?

What are the Possible Causes of the DTC B177C 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 B177C 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 B177C 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 B177C Nissan code?

Need more information on how to fix the B177C Nissan code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 B177C Nissan Code

1. What are the common symptoms of OBDII code B177C in a Nissan related to Soft Top Thermo Protection?

The common symptoms include issues with the operation of the convertible soft top, such as it not opening or closing properly, or getting stuck mid-operation.

2. What could be causing the OBDII code B177C related to Soft Top Thermo Protection in a Nissan?

The code B177C typically indicates a fault in the thermo protection system of the soft top, often caused by a malfunctioning temperature sensor or wiring issue.

3. How can I diagnose the OBDII code B177C in my Nissan's soft top thermo protection system?

Diagnosing the code B177C involves using an OBDII scanner to retrieve the code, followed by inspecting the soft top system components, including the temperature sensor, wiring, and control module.

4. Can I repair the OBDII code B177C related to Soft Top Thermo Protection in my Nissan at home?

Depending on the specific issue causing the code, some repairs related to the soft top thermo protection system, such as replacing a faulty temperature sensor or repairing damaged wiring, can be done at home if you have the necessary tools and skills.

5. Is it safe to drive my Nissan with the OBDII code B177C Soft Top Thermo Protection fault?

While the vehicle may still be operational with the code present, it is not recommended to drive with a malfunctioning soft top system as it can lead to further damage or safety hazards.

6. How much does it typically cost to repair the OBDII code B177C Soft Top Thermo Protection fault in a Nissan?

The cost of repairing the B177C code in a Nissan's soft top thermo protection system can vary depending on the specific issue and whether you choose to repair it yourself or take it to a professional mechanic. Costs can range from a few hundred to over a thousand dollars.

7. Can resetting the OBDII code B177C in my Nissan temporarily resolve the Soft Top Thermo Protection issue?

Resetting the code may temporarily clear the fault, but if the underlying issue in the soft top thermo protection system is not addressed, the code is likely to reappear.

8. Are there any preventive measures I can take to avoid the OBDII code B177C related to Soft Top Thermo Protection in my Nissan?

Regularly inspecting and maintaining the soft top system components, such as the temperature sensor and wiring, can help prevent issues that may trigger the B177C code.

9. Will the OBDII code B177C Soft Top Thermo Protection fault affect the overall performance of my Nissan?

While the code is specifically related to the soft top thermo protection system, ignoring the issue can lead to operational problems with the soft top mechanism that may affect the overall driving experience.

10. How urgent is it to address the OBDII code B177C Soft Top Thermo Protection fault in my Nissan?

It is recommended to address the B177C code related to the soft top thermo protection system as soon as possible to prevent further damage to the convertible top mechanism and ensure safe operation of the vehicle.