AutoCodes – Generic – B1174

B1174 Code - Front Door Lock-Link Switch Right Unlock Circuit Malfunction

Quick Answer

The Rear Body Control Module (RBCM) monitors the Front Door Lock-Link Switch Right Switch. Common causes include Faulty Front Door Lock-Link Switch Right, Front Door Lock-Link Switch Right harness is open or shorted, Front Door Lock-Link Switch Right circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B1174 indicates Front Door Lock-Link Switch Right Unlock Circuit Malfunction.
Common causes: Common causes include Faulty Front Door Lock-Link Switch Right, Front Door Lock-Link Switch Right harness is open or shorted, Front Door Lock-Link Switch Right circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 2,138

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 19, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1174 Description

The Rear Body Control Module (RBCM) monitors the Front Door Lock-Link Switch Right Switch. The RBCM sets the OBDII code when the RBCM detects a short to ground in the Front Door Lock-Link Switch Right Unlock circuit with the Front Door Lock-Link Switch Right Locked.

OBDII Code B1174 - Front Door Lock-Link Switch Right Unlock Circuit Malfunction - AutoCodes.com — B1174 Code - Front Door Lock-Link Switch Right Unlock Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC B1174?

Faulty Front Door Lock-Link Switch Right
Front Door Lock-Link Switch Right harness is open or shorted
Front Door Lock-Link Switch Right circuit poor electrical connection
Faulty Rear Body Control Module (RBCM)

How to Fix the DTC B1174?

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 B1174 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 B1174 code?

Need more information on how to fix the B1174 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1174 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1174 Mazda — Front Door Lock-Link Switch Right Unlock Circuit Malfunction

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 B1174 Code

1. What are common symptoms of OBDII code B1174 (Front Door Lock-Link Switch Right Unlock Circuit Malfunction)?

The common symptoms include difficulty unlocking the front right door, erratic behavior of the door lock mechanism, and possibly an illuminated warning light on the dashboard.

2. What are the possible causes of OBDII code B1174?

Possible causes of this code include a faulty front door lock-link switch on the right side, damaged wiring or connectors in the circuit, or a malfunctioning control module.

3. How can I diagnose the Front Door Lock-Link Switch Right Unlock Circuit Malfunction?

Diagnosis involves using an OBDII scanner to retrieve the trouble code, inspecting the front right door lock-link switch and its wiring for damage, and testing the related components for proper functionality.

4. Can I still drive my vehicle with OBDII code B1174 present?

While the vehicle may still be operational with this code, it is recommended to address the issue promptly to avoid potential safety concerns and further damage to the door lock system.

5. Are there any simple repair tips for fixing OBDII code B1174?

Simple repair tips include checking and repairing any damaged wiring or connectors related to the front right door lock-link switch, and ensuring proper connection and functionality of the switch itself.

6. Do I need special tools to repair OBDII code B1174?

Basic tools such as a multimeter, wire connectors, and electrical tape may be necessary for diagnosing and repairing the Front Door Lock-Link Switch Right Unlock Circuit Malfunction.

7. Can a DIY enthusiast fix OBDII code B1174 at home?

Depending on the extent of the issue, a DIY enthusiast with some knowledge of automotive electrical systems may be able to diagnose and repair OBDII code B1174 at home.

8. How much does it typically cost to repair OBDII code B1174 at a professional auto repair shop?

The cost of repairing OBDII code B1174 at a professional auto repair shop can vary depending on the underlying cause, but it may range from $100 to $300 or more, including parts and labor.

9. Is it important to clear the OBDII code B1174 after repairing the issue?

Yes, it is important to clear the trouble code after repairing the Front Door Lock-Link Switch Right Unlock Circuit Malfunction to reset the system and ensure the issue has been resolved.

10. What should I do if OBDII code B1174 keeps coming back after repair?

If the code persists after repair, further diagnosis may be necessary to identify any remaining issues with the front right door lock system or circuitry.