B123A Lincoln Code - Left Front Turn Indicator Circuit Short
Quick Answer
The Steering Column Control Module (SCCM) monitors the multifunction switch position. Common causes include Faulty Left Front Turn Indicator, Left Front Turn Indicator harness is open or shorted, Left 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
- B123A Lincoln indicates Left Front Turn Indicator Circuit Short.
- Common causes
- Common causes include Faulty Left Front Turn Indicator, Left Front Turn Indicator harness is open or shorted, Left 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.
Code B123A Lincoln Description
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.
What are the Possible Causes of the DTC B123A Lincoln?
- Faulty Left Front Turn Indicator
- Left Front Turn Indicator harness is open or shorted
- Left Front Turn Indicator circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B123A 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.
Code Tech Notes
B123A:15 Left Front Turn Indicator Circuit Short To Battery or Open
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B123A 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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Frequently Asked Questions about B123A Lincoln Code
1. What are the common symptoms of OBDII code B123A in a Lincoln related to the Left Front Turn Indicator Circuit Short?
- The most common symptoms include the left front turn signal not working, rapid blinking of the turn signal, or a warning light on the dashboard.
2. What are the possible causes of OBDII code B123A indicating a Left Front Turn Indicator Circuit Short in a Lincoln?
- The code could be triggered by a faulty turn signal bulb, a damaged wiring harness, a defective turn signal switch, or a malfunctioning body control module.
3. How can I diagnose the cause of OBDII code B123A in my Lincoln related to the Left Front Turn Indicator Circuit Short?
- You can start by visually inspecting the left front turn signal bulb and the wiring leading to it. Check for any visible damage or corrosion that may be causing the short circuit.
4. Can I still drive my Lincoln with the OBDII code B123A indicating a Left Front Turn Indicator Circuit Short?
- While it may be safe to drive, it is recommended to have the issue diagnosed and repaired promptly to ensure proper functioning of the turn signals for safety reasons.
5. Are there any DIY repair tips for fixing OBDII code B123A in a Lincoln related to the Left Front Turn Indicator Circuit Short?
- If you have experience with automotive electrical systems, you can try replacing the left front turn signal bulb or repairing any damaged wiring yourself. Otherwise, it's best to consult a professional mechanic.
6. How much does it typically cost to repair OBDII code B123A indicating a Left Front Turn Indicator Circuit Short in a Lincoln?
- The cost of repair can vary depending on the exact cause of the issue and the labor rates in your area. It's best to get a diagnosis from a mechanic to receive an accurate estimate.
7. Can weather conditions affect the occurrence of OBDII code B123A in a Lincoln related to the Left Front Turn Indicator Circuit Short?
- Extreme weather conditions such as heavy rain or snow can potentially cause electrical issues that may trigger the code. Ensure all electrical components are properly sealed and protected.
8. Is it possible for OBDII code B123A in a Lincoln indicating a Left Front Turn Indicator Circuit Short to reset on its own?
- The code may reset if the underlying issue causing the short circuit is temporary. However, it's important to address the root cause to prevent the code from reoccurring.
9. Can a low battery voltage trigger OBDII code B123A related to the Left Front Turn Indicator Circuit Short in a Lincoln?
- Yes, low battery voltage can sometimes lead to electrical malfunctions that trigger the code. Make sure your vehicle's battery is in good condition and properly charged.
10. Does the OBDII code B123A in a Lincoln indicating a Left Front Turn Indicator Circuit Short affect other electrical components in the vehicle?
- While the code specifically relates to the left front turn indicator circuit, it's possible that electrical issues in one part of the vehicle can impact other systems. It's important to address the problem promptly.
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