U11FB Chrysler Code - Lost Communication With Left Blind Spot Sensor
Quick Answer
The Blind Spot Monitor (BSM) system has two primary components; a Left Blind Spot Sensor (LBSS) and Right Blind Spot Sensor (RBSS). Common causes include Faulty Left Blind Spot Sensor, Left Blind Spot Sensor harness is open or shorted, Left Blind Spot Sensor 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
- U11FB Chrysler indicates Lost Communication With Left Blind Spot Sensor.
- Common causes
- Common causes include Faulty Left Blind Spot Sensor, Left Blind Spot Sensor harness is open or shorted, Left Blind Spot Sensor 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.
Code U11FB Chrysler Description
The microprocessor analyzes the sensor data to determine whether any detected objects should be reported. When it is determined that an object should be reported, the Sensor controls its respective left or right BSM display directly through a hard wired output to the Outside Rearview Mirrors. The sensor also sends an electronic request message over the CAN Bus to the radio. The Radio then mutes any current output through the speakers and generates a chime as an audible alert.
Each sensor performs a bulb test by illuminating the triangle icon in the Outside Rearview Mirror at each ignition ON cycle.
The Diagnostic Trouble Code (DTC) sets when no BUS messages from the Left Blind Spot Sensor (LBSS) are received for greater than 1.05 seconds.
What are the Possible Causes of the DTC U11FB Chrysler?
- Faulty Left Blind Spot Sensor
- Left Blind Spot Sensor harness is open or shorted
- Left Blind Spot Sensor circuit poor electrical connection
How to Fix the DTC U11FB Chrysler?
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 U11FB Chrysler 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 U11FB Chrysler Code
1. What are the common symptoms of OBDII code U11FB for Chrysler "Lost Communication With Left Blind Spot Sensor"?
- Common symptoms include the malfunction indicator light (MIL) illuminating on the dashboard, loss of left blind spot monitoring system functionality, and possible error messages on the vehicle's display.
2. What can cause the OBDII code U11FB to trigger "Lost Communication With Left Blind Spot Sensor" in a Chrysler?
- The code U11FB can be triggered by issues such as a faulty left blind spot sensor, damaged wiring or connectors, a software glitch, or a communication breakdown within the blind spot monitoring system.
3. How can I diagnose the OBDII code U11FB in my Chrysler related to the left blind spot sensor?
- Diagnosing the U11FB code involves using a diagnostic scanner to retrieve the specific fault codes, conducting a visual inspection of the wiring and connectors, and testing the left blind spot sensor and related components for proper functionality.
4. Are there any quick repair tips for addressing the U11FB code "Lost Communication With Left Blind Spot Sensor" in a Chrysler?
- Quick repair tips may include checking and repairing any damaged wiring or connectors, resetting the fault codes using a diagnostic scanner, and recalibrating the blind spot monitoring system if needed.
5. Can I drive my Chrysler safely with the OBDII code U11FB related to the left blind spot sensor issue?
- While driving with the U11FB code triggered may not pose an immediate safety risk, it is recommended to address the issue promptly to ensure the proper functioning of the left blind spot monitoring system for optimal safety on the road.
6. Is it possible to reset the OBDII code U11FB without fixing the underlying issue in a Chrysler?
- While you can reset the fault codes temporarily using a diagnostic scanner, it is crucial to diagnose and address the root cause of the U11FB code to prevent it from reoccurring and ensure the proper operation of the left blind spot sensor.
7. How much does it typically cost to repair the OBDII code U11FB "Lost Communication With Left Blind Spot Sensor" in a Chrysler?
- The cost of repairing the U11FB code can vary depending on the underlying issue, such as replacing a faulty sensor, repairing damaged wiring, or addressing a software glitch. Costs may range from a few hundred to over a thousand dollars, including parts and labor.
8. Can extreme weather conditions affect the triggering of the OBDII code U11FB in a Chrysler related to the left blind spot sensor?
- Extreme weather conditions, such as heavy rain, snow, or extreme temperatures, can potentially impact the functionality of the left blind spot sensor and contribute to triggering the U11FB code. Ensuring proper maintenance and protection of the sensor can help prevent weather-related issues.
9. How long does it typically take to repair the OBDII code U11FB related to the left blind spot sensor issue in a Chrysler?
- The repair duration for the U11FB code can vary based on the specific problem and complexity of the repair needed. Simple fixes like reconnecting a loose connector may take a short time, while more involved repairs could require several hours or a day at a repair shop.
10. Are there any recalls or technical service bulletins (TSBs) related to the OBDII code U11FB "Lost Communication With Left Blind Spot Sensor" in Chrysler vehicles?
- It's recommended to check with a Chrysler dealership or the manufacturer's website for any recalls or TSBs related to the U11FB code. Manufacturers may provide guidance or solutions for addressing known issues related to the left blind spot sensor communication problem in affected vehicles.
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