AutoCodes – Generic – B1754

B1754 Code - Hazard Flash Output Circuit Open

Quick Answer

The Body Control Module (BCM) monitors the Hazard Flash Switch. Common causes include Faulty Hazard Flash Switch, Hazard Flash Switch harness is open or shorted, Hazard Flash Switch 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: B1754 indicates Hazard Flash Output Circuit Open.
Common causes: Common causes include Faulty Hazard Flash Switch, Hazard Flash Switch harness is open or shorted, Hazard Flash Switch 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 3,272

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 23, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1754 Description

The Body Control Module (BCM) monitors the Hazard Flash Switch. The BCM sets the OBDII code when the Hazard Flash Switch is not to factory specifications.

OBDII Code B1754 - Hazard Flash Output Circuit Open - AutoCodes.com — B1754 Code - Hazard Flash Output Circuit Open

What does this mean?

What are the Possible Causes of the DTC B1754?

Faulty Hazard Flash Switch
Hazard Flash Switch harness is open or shorted
Hazard Flash Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1754?

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 B1754 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 B1754 code?

Need more information on how to fix the B1754 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 B1754 Code

1. What are the common symptoms of OBDII code B1754 (Hazard Flash Output Circuit Open)?

- The common symptoms include non-functional hazard lights, non-flashing hazard lights, or a warning light on the dashboard.

2. What can cause the Hazard Flash Output Circuit Open fault code (B1754)?

- Possible causes include a faulty hazard light switch, damaged wiring in the hazard light circuit, or a malfunctioning hazard light relay.

3. How can I diagnose the Hazard Flash Output Circuit Open issue related to OBDII code B1754?

- You can start by visually inspecting the hazard light switch, checking the wiring for any visible damage, and testing the hazard light relay for proper operation.

4. Is it safe to drive with the OBDII code B1754 triggered?

- It is generally safe to drive with this code triggered, but it's important to address the issue promptly to ensure the hazard lights function correctly in case of emergencies.

5. Can I reset the B1754 code on my own, or do I need a professional mechanic?

- You can attempt to reset the code by using an OBDII scanner or disconnecting the car's battery for a few minutes. If the issue persists, it's advisable to consult a professional mechanic.

6. Are there any simple DIY repairs I can try to fix the Hazard Flash Output Circuit Open fault?

- You may try checking and cleaning the hazard light switch contacts, inspecting and repairing any damaged wiring, or replacing a faulty hazard light relay as simple DIY repair options.

7. How much does it typically cost to repair the Hazard Flash Output Circuit Open fault (B1754)?

- The cost of repair can vary depending on the specific cause of the issue, but it may range from $50 to $200 for parts and labor.

8. Can extreme weather conditions affect the hazard light circuit and trigger the B1754 code?

- Yes, extreme weather conditions such as heavy rain, snow, or extreme heat can potentially damage the wiring or components in the hazard light circuit, leading to the B1754 code.

9. Will fixing the Hazard Flash Output Circuit Open fault affect my vehicle's overall performance?

- Fixing this issue is unlikely to have a direct impact on the vehicle's overall performance, but it is essential for ensuring the proper functioning of the hazard lights for safety reasons.

10. How often does the Hazard Flash Output Circuit Open fault occur in vehicles, and is it a common issue?

- The B1754 code related to the Hazard Flash Output Circuit Open fault is not as common as some other OBDII codes, but it can still occur due to various reasons like component wear or electrical issues.