AutoCodes – Generic – B177B

B177B Code - Roof Status Incorrect

Quick Answer

The Soft Top Control Unit sets the OBDII code when the soft top is not set by the Soft Top Control Unit. Common causes include Faulty Soft Top Control Unit, Soft Top Control Unit harness is open or shorted, Soft Top Control Unit 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: B177B indicates Roof Status Incorrect.
Common causes: Common causes include Faulty Soft Top Control Unit, Soft Top Control Unit harness is open or shorted, Soft Top Control Unit 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 2,823

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 B177B Description

The Soft Top Control Unit sets the OBDII code when the soft top is not set by the Soft Top Control Unit.

OBDII Code B177B - Roof Status Incorrect - AutoCodes.com — B177B Code - Roof Status Incorrect

What does this mean?

What are the Possible Causes of the DTC B177B?

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 B177B?

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 B177B 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.

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Need Help with the Code?

Get the B177B code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B177B Nissan — Roof Status Incorrect

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 B177B Code

1. What are the common symptoms of OBDII code B177B - Roof Status Incorrect?

- The common symptoms of this code may include issues with the convertible roof not opening or closing properly, abnormal noises during roof operation, or warning lights illuminated on the dashboard.

2. What are the possible causes of OBDII code B177B?

- The possible causes of code B177B could be a malfunction in the convertible roof control module, damaged wiring or connectors related to the roof system, or a faulty roof position sensor.

3. How can I diagnose the issue related to OBDII code B177B?

- Diagnosing the issue involves using a scan tool to retrieve the code, checking the convertible roof system for any visible damage or loose connections, and testing the roof position sensor for proper functionality.

4. Can I repair OBDII code B177B at home?

- Depending on the underlying cause, some repairs related to code B177B can be done at home, such as checking and securing wiring connections, while more complex issues may require professional assistance.

5. What are some tips for fixing OBDII code B177B - Roof Status Incorrect?

- Some tips for fixing this code include ensuring the roof system is free from obstructions, performing a reset of the convertible roof system, and checking for any software updates for the control module.

6. Is it safe to drive with OBDII code B177B active?

- It is generally safe to drive with this code, but it is recommended to address the issue promptly to prevent any further damage or inconvenience related to the convertible roof system.

7. How much does it cost to repair OBDII code B177B?

- The cost of repairing this code can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, labor charges, and diagnostic fees.

8. Can OBDII code B177B be intermittent?

- Yes, this code can sometimes be intermittent, meaning the issue with the roof system may come and go, making it important to address the problem even if it temporarily resolves itself.

9. Will resetting the OBDII system clear code B177B?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue with the roof system is not resolved, the code is likely to reappear upon further operation.

10. How long does it typically take to repair OBDII code B177B?

- The repair time for this code can vary depending on the complexity of the issue and the availability of parts, but it is advisable to consult a professional technician for an accurate estimate.