AutoCodes – Generic – U11F1

U11F1 Code - Lost Communication With Right 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 Right Impact Pressure Sensor, Right Impact Pressure Sensor harness is open or shorted, Right 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: U11F1 indicates Lost Communication With Right Impact Pressure Sensor.
Common causes: Common causes include Faulty Right Impact Pressure Sensor, Right Impact Pressure Sensor harness is open or shorted, Right 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 2,837

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

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 U11F1 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. This code will set, if the ORC and the Passenger 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 Passenger Door Pressure Sensor communication fault has been removed or the suspect pressure sensor has been replaced for 2.5 seconds. The Airbag Warning Lamp (AWL) will set in the instrument cluster.

OBDII Code U11F1 - Lost Communication With Right Impact Pressure Sensor - AutoCodes.com — U11F1 Code - Lost Communication With Right Impact Pressure Sensor

What does this mean?

What are the Possible Causes of the DTC U11F1?

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

How to Fix the DTC U11F1?

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 U11F1 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 U11F1 code?

Need more information on how to fix the U11F1 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U11F1 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U11F1 Chrysler — Lost Communication With Right Impact Pressure Sensor
U11F1 Dodge — Lost Communication With Right Impact Pressure Sensor
U11F1 Fiat — Lost Communication With Right Impact Pressure Sensor
U11F1 Jeep — Lost Communication With Right Impact Pressure Sensor
U11F1 RAM — Lost Communication With Right Impact Pressure Sensor

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 U11F1 Code

1. What are common symptoms of OBDII code U11F1 (Lost Communication With Right Impact Pressure Sensor)?

- Common symptoms include the airbag warning light illuminating on the dashboard, inability to deploy the right-side airbag during a collision, and diagnostic trouble codes related to the impact pressure sensor.

2. What can cause the OBDII code U11F1 to trigger?

- This code can be triggered by a damaged impact pressure sensor, wiring issues, loose connections, or a faulty airbag control module.

3. How can I diagnose the cause of code U11F1?

- Diagnose the issue by using a professional OBDII scanner to retrieve the specific codes, checking the wiring and connections to the impact pressure sensor, and testing the sensor itself for proper functionality.

4. Is it safe to continue driving with the U11F1 code present?

- It is not recommended to continue driving with the U11F1 code present as it indicates a potential issue with the right impact pressure sensor, which could affect the proper deployment of the airbag in the event of a collision.

5. How can I repair the U11F1 code related to the lost communication with the right impact pressure sensor?

- Repair the issue by addressing any wiring or connection problems, replacing the damaged impact pressure sensor, or resetting the airbag control module after fixing the underlying cause.

6. Can a DIY enthusiast fix the U11F1 code issue at home?

- While some basic troubleshooting steps can be performed at home, it is recommended to consult a professional mechanic for a thorough diagnosis and repair of the U11F1 code to ensure proper functioning of the airbag system.

7. Are there any safety concerns associated with the U11F1 code?

- Yes, the U11F1 code indicates a potential safety risk as it involves the communication failure with the impact pressure sensor, which could compromise the effectiveness of the airbag system in a collision.

8. How much does it typically cost to fix the U11F1 code issue?

- The cost of fixing the U11F1 code can vary depending on the underlying cause, but it may involve expenses for parts, labor, and diagnostic services, ranging from a few hundred to over a thousand dollars.

9. Can resetting the OBDII system clear the U11F1 code temporarily?

- Resetting the OBDII system may clear the code temporarily, but it is crucial to address the root cause of the issue to prevent the code from recurring and ensure the proper functioning of the airbag system.

10. How urgent is it to address the U11F1 code related to the right impact pressure sensor?

- It is highly recommended to address the U11F1 code promptly to ensure the proper operation of the airbag system in the event of a collision and maintain the safety of vehicle occupants.