AutoCodes – Chrysler – U146E Chrysler

U146E Chrysler 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 Chrysler 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 548

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 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U146E Chrysler 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 Chrysler - Implausible Data Received From Left C-Pillar Impact Acceleration Sensor - AutoCodes.com — U146E Chrysler Code - Implausible Data Received From Left C-Pillar Impact Acceleration Sensor

What does this mean?

What are the Possible Causes of the DTC U146E Chrysler?

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 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 U146E 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.

Need more information about the U146E Chrysler code?

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

Need Help with the Code?

Get the U146E Chrysler 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 Chrysler Code

1. What are the common symptoms of OBDII code U146E in a Chrysler vehicle?

- Common symptoms include the illumination of the Check Engine light, erratic behavior of the vehicle's safety systems, and potential issues with the airbag deployment system.

2. What does the OBDII code U146E "Implausible Data Received From Left C-Pillar Impact Acceleration Sensor" mean?

- This code indicates that the vehicle's onboard computer has detected abnormal or inconsistent data coming from the left C-pillar impact acceleration sensor.

3. What are the possible causes of OBDII code U146E in a Chrysler vehicle?

- Possible causes include a malfunctioning left C-pillar impact acceleration sensor, wiring or connection issues, software glitches, or a problem with the vehicle's airbag control module.

4. How serious is OBDII code U146E in a Chrysler vehicle?

- This code should be addressed promptly as it relates to the proper functioning of the vehicle's safety systems, particularly the airbag deployment system. Ignoring this code may compromise the vehicle's safety in the event of an accident.

5. Can I continue to drive my Chrysler vehicle with OBDII code U146E present?

- It is not recommended to continue driving the vehicle with this code active, as it may affect the proper operation of the airbag system and other safety features.

6. How can I diagnose and repair OBDII code U146E in my Chrysler vehicle?

- Diagnosis typically involves inspecting the left C-pillar impact acceleration sensor, checking wiring connections, and using a diagnostic scanner to reset the code after repairs are made.

7. Can a DIY enthusiast fix OBDII code U146E, or is professional help required?

- While some individuals may be able to diagnose and repair simple wiring or connection issues causing this code, more complex problems with sensors or modules may require professional assistance.

8. Are there any preventive measures to avoid OBDII code U146E from occurring in my Chrysler?

- Regular vehicle maintenance, including checking the airbag system components during scheduled services, can help prevent issues that may trigger this code.

9. How much does it typically cost to repair OBDII code U146E in a Chrysler vehicle?

- The cost of repair can vary depending on the exact cause of the code, but it may involve sensor replacement, wiring repairs, or software updates, which can range from a few hundred to over a thousand dollars.

10. Does fixing OBDII code U146E require resetting the vehicle's computer system?

- Yes, after the underlying issue is fixed, the OBDII code U146E can be reset using a diagnostic scanner to clear the code from the vehicle's computer system.