AutoCodes – Jeep – U146E Jeep

U146E Jeep Code - Implausible Data Received From Left C-Pillar Impact Acceleration Sensor

Quick Answer

Six side impact sensors are used on vehicles equipped with side curtain airbags, three on each side of the vehicle. Common causes include Faulty Left Side Impact Pressure Sensor 2, Left Side Impact Pressure Sensor 2 harness is open or shorted, Left Side Impact Pressure Sensor 2 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: U146E Jeep indicates Implausible Data Received From Left C-Pillar Impact Acceleration Sensor.
Common causes: Common causes include Faulty Left Side Impact Pressure Sensor 2, Left Side Impact Pressure Sensor 2 harness is open or shorted, Left Side Impact Pressure Sensor 2 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 661

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 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U146E Jeep Description

Six side impact sensors are used on vehicles equipped with side curtain airbags, three on each side of the vehicle. One acceleration-type sensor is located behind the B-pillar trim near the base of each B-pillar, and one acceleration-type sensor is located behind the quarter panel trim near the base of each C-pillar. One pressure-type sensor is located on each front poor hardware carrier panel, concealed behind each front door inside the trim panel. The Left Side Impact Sensor 2 is mounted to the passenger rear door opening. 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 Left Side Impact Sensor 2 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 Left Side Impact Sensor 2 communication fault has been removed or the suspect sensor has been replaced for 2.5 seconds. The Airbag Warning Lamp (AWL) will set in the instrument cluster.

OBDII Code U146E Jeep - Implausible Data Received From Left C-Pillar Impact Acceleration Sensor - AutoCodes.com — U146E Jeep Code - Implausible Data Received From Left C-Pillar Impact Acceleration Sensor

What does this mean?

What are the Possible Causes of the DTC U146E Jeep?

Faulty Left Side Impact Pressure Sensor 2
Left Side Impact Pressure Sensor 2 harness is open or shorted
Left Side Impact Pressure Sensor 2 circuit poor electrical connection
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC U146E 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 U146E 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 U146E Jeep code?

Need more information on how to fix the U146E Jeep code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U146E 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 U146E Jeep Code

1. What are common symptoms of the U146E Jeep OBDII code?

- Common symptoms include the airbag warning light being illuminated on the dashboard and potential issues with the vehicle's airbag system.

2. What does the U146E code mean for a Jeep?

- The U146E code indicates that there is implausible data being received from the left C-pillar impact acceleration sensor in the vehicle's airbag system.

3. What are possible causes of the U146E code in a Jeep?

- Possible causes include a malfunctioning left C-pillar impact acceleration sensor, wiring issues, or a faulty airbag control module.

4. How serious is the U146E Jeep OBDII code?

- The U146E code is considered serious as it relates to the vehicle's airbag system, which is a critical safety feature. It is important to address this issue promptly.

5. Can I still drive my Jeep with the U146E code?

- It is not recommended to drive the vehicle with the U146E code present, as it may indicate a problem with the airbag system, which could potentially affect its performance in the event of an accident.

6. How can the U146E code be diagnosed?

- The U146E code can be diagnosed using a professional OBDII scanner to retrieve the fault codes and further inspection of the left C-pillar impact acceleration sensor and related components.

7. Is it possible to repair the U146E code without professional help?

- While some simple wiring or connection issues may be resolved without professional help, it is recommended to have a qualified technician diagnose and repair the underlying cause of the U146E code.

8. What are some tips for repairing the U146E code in a Jeep?

- Repair tips include checking the wiring harness for damage, ensuring proper connections, and replacing the left C-pillar impact acceleration sensor if necessary.

9. Can resetting the OBDII system clear the U146E code?

- Resetting the OBDII system may temporarily clear the U146E code, but it is important to address the root cause of the issue to prevent the code from reappearing.

10. How much does it typically cost to repair the U146E code in a Jeep?

- The cost of repairing the U146E code can vary depending on the specific cause of the issue, but it may involve sensor replacement, wiring repairs, or module reprogramming, potentially ranging from $200 to $600 or more.