AutoCodes – Dodge – U146D Dodge

U146D Dodge Code - Implausible Data Received From Left B-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 1, Left Side Impact Pressure Sensor 1 harness is open or shorted, Left Side Impact Pressure Sensor 1 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: U146D Dodge indicates Implausible Data Received From Left B-Pillar Impact Acceleration Sensor.
Common causes: Common causes include Faulty Left Side Impact Pressure Sensor 1, Left Side Impact Pressure Sensor 1 harness is open or shorted, Left Side Impact Pressure Sensor 1 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 439

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 U146D Dodge 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 1 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 1 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 1 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 U146D Dodge - Implausible Data Received From Left B-Pillar Impact Acceleration Sensor - AutoCodes.com — U146D Dodge Code - Implausible Data Received From Left B-Pillar Impact Acceleration Sensor

What does this mean?

What are the Possible Causes of the DTC U146D Dodge?

Faulty Left Side Impact Pressure Sensor 1
Left Side Impact Pressure Sensor 1 harness is open or shorted
Left Side Impact Pressure Sensor 1 circuit poor electrical connection
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC U146D Dodge?

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 U146D Dodge 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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Need more information on how to fix the U146D Dodge code? Get Access to Factory Service Manuals

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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 U146D Dodge Code

1. What are the common symptoms of OBDII code U146D in a Dodge vehicle?

- Common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the airbag system's functionality.

2. What does the OBDII code U146D "Implausible Data Received From Left B-Pillar Impact Acceleration Sensor" mean for a Dodge?

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

3. What are possible causes of the U146D code in a Dodge related to the left B-pillar impact acceleration sensor?

- Potential causes include a malfunctioning sensor, wiring issues, loose connections, or damage to the sensor due to impact or corrosion.

4. How can I diagnose the U146D code in my Dodge vehicle?

- Diagnosis typically involves inspecting the left B-pillar impact acceleration sensor and its wiring for any visible damage, testing the sensor's functionality, and scanning for other related trouble codes.

5. Can driving with the U146D code present cause any safety concerns?

- Driving with this code may compromise the proper deployment of the vehicle's airbags in the event of a collision, so it is recommended to address the issue promptly.

6. Is it safe to continue driving my Dodge with the U146D code if the airbag warning light is not illuminated?

- It is not advisable to drive the vehicle with this code present, as the airbag system may not function correctly even if the warning light is not currently on.

7. How can I repair the U146D code in my Dodge?

- Repair may involve replacing the left B-pillar impact acceleration sensor, repairing or replacing damaged wiring, ensuring proper sensor alignment, and clearing the trouble code from the vehicle's computer.

8. Can I reset the U146D code in my Dodge without addressing the underlying issue?

- While you can clear the code with an OBDII scanner, it is crucial to address the underlying problem to ensure the safety and proper functioning of the airbag system.

9. Are there any recalls or technical service bulletins related to the U146D code in Dodge vehicles?

- It is recommended to check with your local Dodge dealership or visit the manufacturer's website to see if there are any recalls or technical service bulletins related to this specific OBDII code.

10. How much can I expect to pay to repair the U146D code in my Dodge at a dealership or repair shop?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve parts and labor expenses ranging from a few hundred to over a thousand dollars, so it's advisable to obtain estimates from multiple sources.