U11FA Jeep Code - Lost Communication With Right 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 Right Blind Spot Sensor, Right Blind Spot Sensor harness is open or shorted, Right 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
- U11FA Jeep indicates Lost Communication With Right Blind Spot Sensor.
- Common causes
- Common causes include Faulty Right Blind Spot Sensor, Right Blind Spot Sensor harness is open or shorted, Right 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 U11FA Jeep 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 Right Blind Spot Sensor (RBSS) are received for greater than 1.05 seconds.
What are the Possible Causes of the DTC U11FA Jeep?
- Faulty Right Blind Spot Sensor
- Right Blind Spot Sensor harness is open or shorted
- Right Blind Spot Sensor circuit poor electrical connection
How to Fix the DTC U11FA Jeep?
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 U11FA Jeep 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 U11FA Jeep Code
1. What does the OBDII code U11FA mean on a Jeep?
The U11FA code indicates a loss of communication with the right blind spot sensor, meaning the system cannot communicate with the sensor responsible for monitoring the vehicle's blind spot on the right side.
2. What are the common symptoms of the U11FA code?
Symptoms may include the blind spot monitoring system not functioning properly, warning lights on the dashboard, or the blind spot indicator not illuminating when a vehicle is detected.
3. What causes the U11FA code to appear?
The code can be caused by a faulty right blind spot sensor, damaged wiring or connectors, a software issue in the control module, or interference from other electronic components.
4. Can I still drive my Jeep with the U11FA code active?
Yes, you can still drive the vehicle, but the blind spot monitoring system will not function, which may increase the risk of an accident when changing lanes.
5. How do I diagnose the U11FA code on my Jeep?
Diagnosis involves checking for physical damage to the right blind spot sensor or its wiring, scanning for additional fault codes, and testing the communication signal using a diagnostic tool.
6. How do I fix the U11FA code?
Repairs may include replacing the right blind spot sensor, repairing or replacing damaged wiring or connectors, or updating the vehicle's software if a glitch is causing the issue.
7. How much does it cost to repair the U11FA code on a Jeep?
Repair costs vary but generally range from $200 to $600, depending on whether the sensor needs replacement or if only wiring repairs are required.
8. Can a dead battery cause the U11FA code to appear?
Yes, a weak or dead battery can disrupt communication between the control modules and trigger the U11FA code.
9. Is the U11FA code specific to certain Jeep models?
The U11FA code can appear on various Jeep models equipped with a blind spot monitoring system, such as the Grand Cherokee, Cherokee, and Wrangler.
10. Can I reset the U11FA code without fixing the issue?
You can clear the code with a diagnostic tool, but it will likely return unless the underlying problem is resolved.
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