AutoCodes – Lincoln – B1372 Lincoln

B1372 Lincoln Code - Left Rear 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 Left Rear Door Handle, Left Rear Door Handle harness is open or shorted, Left Rear 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: B1372 Lincoln indicates Left Rear Door Handle Unlock Circuit No Sub Type Information.
Common causes: Common causes include Faulty Left Rear Door Handle, Left Rear Door Handle harness is open or shorted, Left Rear 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 730

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 B1372 Lincoln 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 left rear door unlock sensor when voltage and ground are applied to the sensor after detecting vehicle speed.

OBDII Code B1372 Lincoln - Left Rear Door Handle Unlock Circuit No Sub Type Information - AutoCodes.com — B1372 Lincoln Code - Left Rear Door Handle Unlock Circuit No Sub Type Information

What does this mean?

What are the Possible Causes of the DTC B1372 Lincoln?

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

How to Fix the DTC B1372 Lincoln?

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 B1372 Lincoln 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 B1372 Lincoln code?

Need more information on how to fix the B1372 Lincoln 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 B1372 Lincoln Code

1. What does the OBDII code B1372 mean on a Lincoln?

The code B1372 indicates an issue with the left rear door handle unlock circuit, where the system has detected a fault, but no specific subtype information is available.

2. What are the common symptoms of the B1372 code?

Symptoms include the left rear door not unlocking electronically, intermittent unlocking issues, or no response when using the door handle or key fob.

3. What causes the B1372 code on a Lincoln vehicle?

Common causes include a faulty door handle sensor, damaged wiring or connectors in the unlock circuit, or a malfunctioning door control module.

4. How do I diagnose the B1372 code?

Start by inspecting the wiring and connectors for damage or corrosion, test the left rear door handle sensor, and check the door control module for proper operation.

5. Can I still drive my Lincoln with the B1372 code active?

Yes, the vehicle is still drivable, but the left rear door may not unlock electronically, which could be inconvenient or a safety concern.

6. How do I fix the B1372 code on a Lincoln?

Repairs may include replacing the left rear door handle sensor, repairing damaged wiring, or reprogramming or replacing the door control module.

7. Is the B1372 code specific to Lincoln vehicles?

While the code can appear on other vehicles, its specifics and repair steps may vary; always consult the repair manual for your Lincoln model.

8. What tools are needed to troubleshoot the B1372 code?

Youâ€™ll need an OBDII scanner, a multimeter to check the wiring, and possibly a diagnostic tool specific to your Lincoln model for module testing.

9. How much does it cost to repair a B1372 code?

Repair costs can range from $50 to $500 depending on whether you need to replace the door handle sensor, repair wiring, or replace the door control module.

10. Can I clear the B1372 code without fixing the problem?

Clearing the code with an OBDII scanner is possible, but the issue will likely return if the underlying problem is not resolved.