B123B 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 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.
Code B123B 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 B123B?
- 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?
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
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 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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Information for Specific Makes
- B123B Chrysler — PTS Sensor 10 Circuit Low
- B123B Dodge — PTS Sensor 10 Circuit Low
- B123B Ford — Right Front Turn Indicator Circuit Short
- B123B Jeep — PTS Sensor 10 Circuit Low
- B123B Lincoln — Right Front Turn Indicator Circuit Short
- B123B Mercury — Right Front Turn Indicator Circuit Short
- B123B RAM — PTS Sensor 10 Circuit Low
Frequently Asked Questions about B123B Code
1. What are common symptoms of OBDII code B123B (Right Front Turn Indicator Circuit Short)?
- Common symptoms include the right front turn signal not working, fast blinking of the turn signal, or a warning light on the dashboard.
2. What can cause the OBDII code B123B (Right Front Turn Indicator Circuit Short)?
- Possible causes include a short circuit in the wiring, a faulty turn signal bulb, a defective turn signal socket, or a problem with the turn signal switch.
3. How can I diagnose the OBDII code B123B (Right Front Turn Indicator Circuit Short)?
- Use a multimeter to check for continuity in the turn signal circuit, inspect the wiring harness for damage, and test the turn signal bulb and socket for proper function.
4. Is it safe to drive with the OBDII code B123B (Right Front Turn Indicator Circuit Short) active?
- It is not recommended to drive with this issue as it can affect your vehicle's visibility to other drivers, potentially leading to accidents.
5. How can I repair the OBDII code B123B (Right Front Turn Indicator Circuit Short) myself?
- You can start by checking and replacing the right front turn signal bulb, inspecting and repairing any damaged wiring, or replacing a faulty turn signal socket.
6. Can a faulty turn signal relay cause the OBDII code B123B (Right Front Turn Indicator Circuit Short)?
- While less common, a malfunctioning turn signal relay could potentially cause issues with the turn signal circuit and trigger this error code.
7. Will resetting the OBDII code B123B (Right Front Turn Indicator Circuit Short) make the problem go away?
- Simply resetting the code will not fix the underlying issue causing the short circuit. You must diagnose and repair the root cause for a lasting solution.
8. How much does it typically cost to repair the OBDII code B123B (Right Front Turn Indicator Circuit Short) at a repair shop?
- The cost of repair can vary depending on the exact cause of the issue, but it may range from $50 to $200 for parts and labor.
9. Are there any preventative measures to avoid encountering the OBDII code B123B (Right Front Turn Indicator Circuit Short)?
- Regularly checking and maintaining your vehicle's turn signal system, replacing bulbs promptly, and addressing any wiring issues can help prevent this code from appearing.
10. Can a DIY enthusiast with basic automotive knowledge fix the OBDII code B123B (Right Front Turn Indicator Circuit Short)?
- Yes, someone with basic automotive knowledge can attempt to diagnose and repair this issue, especially with the help of online guides and tutorials.
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