AutoCodes – Generic – B1373

B1373 Code - Front Right Door Handle Unlock Circuit No Sub Type Information

Quick Answer

The Remote Function Actuator (RFA) Module interprets radio frequency signals from the Remote Functions Receiver (RFR) Module and Intelligent Access (IA) key transmitters. Common causes include Faulty Front Right Door Handle, Front Right Door Handle harness is open or shorted, Front Right Door Handle 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: B1373 indicates Front Right Door Handle Unlock Circuit No Sub Type Information.
Common causes: Common causes include Faulty Front Right Door Handle, Front Right Door Handle harness is open or shorted, Front Right Door Handle 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 9,035

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 Feb 18, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1373 Description

The Remote Function Actuator (RFA) Module interprets radio frequency signals from the Remote Functions Receiver (RFR) Module and Intelligent Access (IA) key transmitters. The RFA module receives input signals from various modules and other components. Based on this information, the RFA module generates an output signal to control various components such as the door locks and the liftgate. The OBDII code sets when the RFA module receives no response from the right front door unlock sensor when voltage and ground are applied to the sensor after detecting vehicle speed.

OBDII Code B1373 - Front Right Door Handle Unlock Circuit No Sub Type Information - AutoCodes.com — B1373 Code - Front Right Door Handle Unlock Circuit No Sub Type Information

What does this mean?

What are the Possible Causes of the DTC B1373?

Faulty Front Right Door Handle
Front Right Door Handle harness is open or shorted
Front Right Door Handle circuit poor electrical connection
Faulty Remote Function Actuator (RFA) Module

How to Fix the DTC B1373?

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 B1373 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 B1373 code?

Need more information on how to fix the B1373 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1373 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1373 Ford — Front Right Door Handle Unlock Circuit No Sub Type Information
B1373 Lincoln — Front Right Door Handle Unlock Circuit No Sub Type Information
B1373 Mercury — Front Right Door Handle Unlock Circuit No Sub Type Information

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 B1373 Code

1. What does the OBDII code B1373 indicate?

The code B1373 indicates an issue within the front right door handle unlock circuit, specifically signaling a malfunction with no further subtype information provided.

2. What are common symptoms associated with the B1373 code?

Common symptoms include the front right door not unlocking with the remote or automatic system, an unresponsive right front door handle, and possible activation of the security alarm when attempting to unlock the door.

3. What might cause the OBDII code B1373 to be triggered?

Possible causes for this code include a faulty front right door handle sensor, damaged wiring in the door handle circuit, or a malfunctioning door lock actuator.

4. How can I diagnose the problem leading to the B1373 code?

Diagnosis should start with a visual inspection of the wiring and connectors in the front right door handle circuit. Use a multimeter to check for continuity and test the door handle sensor and lock actuator for functionality.

5. Are there any quick checks I can perform for code B1373 before going to a mechanic?

You can perform a basic check of the front right door handle area for any obvious signs of damage or loose connections. Also, ensure that the door handle is not mechanically sticking or jammed.

6. What repair steps are typically taken to resolve code B1373?

Repairing this issue may involve replacing the faulty door handle sensor, repairing or replacing damaged wires in the unlock circuit, or replacing the door lock actuator if found to be defective.

7. Is it safe to drive with the B1373 code active?

While it may be safe to drive with this issue, the inability to unlock the front right door can be inconvenient and could pose safety issues in an emergency situation.

8. Will ignoring the B1373 code lead to further vehicle issues?

Ignoring the problem can lead to increased inconvenience, potential security issues, and possibly affect other components related to the vehicleâ€™s locking and security system.

9. How urgent is it to address a B1373 code?

It is moderately urgent to address this issue, particularly if it affects your ability to unlock the door, which can be a significant inconvenience and a security concern.

10. Can a failed battery or alternator trigger the B1373 code?

While a failed battery or alternator is less likely to specifically cause this code, electrical issues or low voltage conditions can contribute to erratic behavior of electronic components like door locks.