AutoCodes – Jeep – U11F0 Jeep

U11F0 Jeep Code - Lost Communication With Left Impact Pressure Sensor

Quick Answer

The impact sensors perform their own self-test using power supplied by the Occupant Restraint Controller (ORC) then communicate this status back to the ORC with periodic updates. Common causes include Faulty Left Impact Pressure Sensor, Left Impact Pressure Sensor harness is open or shorted, Left Impact Pressure 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: U11F0 Jeep indicates Lost Communication With Left Impact Pressure Sensor.
Common causes: Common causes include Faulty Left Impact Pressure Sensor, Left Impact Pressure Sensor harness is open or shorted, Left Impact Pressure 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.

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Code Popularity 4,210

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on May 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U11F0 Jeep Description

The impact sensors perform their own self-test using power supplied by the Occupant Restraint Controller (ORC) then communicate this status back to the ORC with periodic updates. The repair of this fault condition involves verifying the integrity of the wiring between the ORC and the sensor. A short to voltage fault on the door pressure sensor wiring can cause a loss of communication side-impact code to set and the possible replacement of a good side impact sensor. The door pressure sensor is hardwired to the side impact sensor which is hard-wired to the ORC creating a daisy chain circuit. The short to battery fault in a loss of communication or internal circuit failure of the door pressure sensor can cause the side impact sensor on the same side to set a loss of communication code. This code will set, if the ORC and the Driver Door Pressure Sensor do not establish and maintain valid data communications. The Diagnostic Trouble Code (DTC) will become Active after the fault has set for a minimum of 2.5 seconds. The DTC will go to Stored after the ORC to Driver Door Pressure Sensor communication fault has been removed or the suspect pressure sensor has been replaced for 2.5 seconds. The Multifunction Indicator Lamp (MIL) will set in the instrument cluster.

OBDII Code U11F0 Jeep - Lost Communication With Left Impact Pressure Sensor - AutoCodes.com — U11F0 Jeep Code - Lost Communication With Left Impact Pressure Sensor

What does this mean?

What are the Possible Causes of the DTC U11F0 Jeep?

Faulty Left Impact Pressure Sensor
Left Impact Pressure Sensor harness is open or shorted
Left Impact Pressure Sensor circuit poor electrical connection
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC U11F0 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 U11F0 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.

Need more information about the U11F0 Jeep code?

Need more information on how to fix the U11F0 Jeep code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U11F0 Jeep code diagnosed by a professional: Find a repair shop in your area

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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 U11F0 Jeep Code

1. What are the common symptoms of the U11F0 OBDII code in a Jeep related to the left impact pressure sensor?

- Common symptoms include the airbag warning light illuminating on the dashboard and potential loss of communication with the left impact pressure sensor.

2. What can cause the U11F0 code in a Jeep indicating lost communication with the left impact pressure sensor?

- Possible causes of this code may include a faulty impact pressure sensor, damaged wiring, loose connections, or issues with the airbag control module.

3. How can I diagnose the U11F0 code in a Jeep to pinpoint the issue with the left impact pressure sensor?

- Diagnosing the code requires using a professional OBDII scanner to retrieve the specific details of the fault, inspecting the sensor and its connections for damage, and testing the wiring for continuity.

4. Is it safe to drive a Jeep with the U11F0 code triggered by a lost communication with the left impact pressure sensor?

- It is not recommended to drive the vehicle with this code present, as it may affect the proper functioning of the airbag system in case of an accident.

5. What are some possible repair tips for resolving the U11F0 code related to the left impact pressure sensor in a Jeep?

- Repair tips may include checking and repairing any damaged wiring, ensuring secure connections, replacing the left impact pressure sensor if necessary, and clearing the code with a scanner.

6. Can resetting the OBDII system clear the U11F0 code for lost communication with the left impact pressure sensor in a Jeep?

- Resetting the system may clear the code temporarily, but if the underlying issue is not fixed, the code is likely to return after driving the vehicle.

7. Is it possible to fix the U11F0 code in a Jeep related to the left impact pressure sensor without professional assistance?

- While some simple checks like inspecting connections and wiring can be done by DIYers, a proper diagnosis and repair of the issue may require professional help.

8. Are there any known recalls or technical service bulletins related to the U11F0 code in Jeep vehicles?

- It's advisable to check with your local Jeep dealership or the manufacturer's website for any recalls or technical service bulletins related to the U11F0 code and the left impact pressure sensor.

9. How much does it typically cost to repair the U11F0 code caused by a lost communication with the left impact pressure sensor in a Jeep?

- The repair costs can vary depending on the exact cause of the issue, but it may involve expenses for parts replacement, wiring repairs, and labor charges, which can range from a few hundred to a thousand dollars.

10. Can the U11F0 code in a Jeep be a false alarm, or does it always indicate a genuine issue with the left impact pressure sensor?

- While occasional false alarms are possible, it is crucial to investigate and address the U11F0 code promptly to ensure the proper functioning of the airbag system and vehicle safety.