AutoCodes – Lincoln – B123B Lincoln

B123B Lincoln Code - Right Front Turn Indicator Circuit Short

Quick Answer

The Steering Column Control Module (SCCM) monitors the multifunction switch position. Common causes include Faulty Right Front Turn Indicator, Right Front Turn Indicator harness is open or shorted, Right Front Turn Indicator 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: B123B Lincoln indicates Right Front Turn Indicator Circuit Short.
Common causes: Common causes include Faulty Right Front Turn Indicator, Right Front Turn Indicator harness is open or shorted, Right Front Turn Indicator 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 1,652

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
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B123B Lincoln Description

The Steering Column Control Module (SCCM) monitors the multifunction switch position. When the multifunction switch is in the left or right TURN position, the SCCM sends a turn signal switch_status message over the communication network to the Body Control Module (BCM) indicating a request for the left or right turn signal. When the BCM receives a request for a turn signal, the BCM supplies on/off voltage to the appropriate turn lamps.
The timed on/off cycle for turn lamps is determined by the BCM and is set to flash approximately 80 times per minute if both the front and rear turn signal lamps operate correctly. If an individual turn signal lamp is inoperative, the BCM fast flashes the remaining turn lamp approximately 160 times per minute to indicate a bulb outage to the driver. The OBDII sets when the BCM detects the front, rear or exterior mirror turn lamp output is not to factory specifications.

OBDII Code B123B Lincoln - Right Front Turn Indicator Circuit Short - AutoCodes.com — B123B Lincoln Code - Right Front Turn Indicator Circuit Short

What does this mean?

What are the Possible Causes of the DTC B123B Lincoln?

Faulty Right Front Turn Indicator
Right Front Turn Indicator harness is open or shorted
Right Front Turn Indicator circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B123B 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 does this mean?

Code Tech Notes

B123B:11 Right Front Turn Indicator Circuit Short To Ground
B123B:15 Right Front Turn Indicator Circuit Short To Battery or Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B123B 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.

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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 B123B Lincoln Code

1. What are the common symptoms of OBDII code B123B Lincoln (Right Front Turn Indicator Circuit Short)?

The common symptoms of this code include a non-functioning or rapidly blinking right front turn signal indicator on the Lincoln vehicle.

2. What are the possible causes of the B123B OBDII code on a Lincoln vehicle?

The possible causes of the B123B code include a short circuit in the right front turn indicator circuit, faulty wiring, a defective turn signal bulb, or a malfunctioning turn signal switch.

3. How can I diagnose the B123B code on my Lincoln for the right front turn indicator circuit short?

Diagnosing the B123B code involves visually inspecting the wiring and connections in the right front turn indicator circuit, checking the turn signal bulb for damage, and testing the turn signal switch for proper functionality.

4. What are some repair tips for fixing the B123B code on a Lincoln due to a right front turn indicator circuit short?

Repair tips for this code may include replacing the damaged wiring, repairing any faulty connections, replacing the defective turn signal bulb, or replacing the malfunctioning turn signal switch.

5. Can I drive my Lincoln with the B123B OBDII code (Right Front Turn Indicator Circuit Short) without fixing it immediately?

It is generally not recommended to drive your Lincoln with this code present, as it can affect the visibility of your vehicle to other drivers, potentially leading to safety hazards on the road.

6. Does fixing the B123B OBDII code on a Lincoln require professional assistance, or can it be done as a DIY repair?

Depending on your automotive repair skills and experience, you may be able to fix this code as a DIY repair. However, if you are unsure or uncomfortable with electrical repairs, it is advisable to seek professional assistance.

7. Is resetting the B123B OBDII code on a Lincoln after fixing the right front turn indicator circuit short a necessary step?

After fixing the issue causing the B123B code, it is recommended to reset the code using an OBDII scanner to clear the error codes and ensure that the problem has been successfully resolved.

8. Are there any preventive maintenance measures I can take to avoid encountering the B123B OBDII code on my Lincoln?

To prevent the occurrence of the B123B code, regularly inspect and maintain the turn signal system of your Lincoln, including checking the bulbs, wiring, and connections for any signs of wear or damage.

9. Can extreme weather conditions or environmental factors contribute to triggering the B123B OBDII code for a right front turn indicator circuit short on a Lincoln?

Extreme weather conditions or environmental factors, such as water ingress or corrosion, can potentially contribute to the development of a short circuit in the right front turn indicator circuit, leading to the B123B code.

10. How long does it typically take to diagnose and repair the B123B OBDII code related to the right front turn indicator circuit short on a Lincoln?

The time required to diagnose and repair the B123B code can vary depending on the extent of the issue and the complexity of the repair. It is advisable to allocate sufficient time for a thorough diagnosis and proper repair to ensure the code is resolved effectively.