AutoCodes – Chrysler – U0172 Chrysler

U0172 Chrysler Code - Lost Communication With Left Side Satellite Acceleration Sensor 1

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 Side Impact Sensor 1, Left Side Impact Sensor 1 harness is open or shorted, Left Side Impact 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: U0172 Chrysler indicates Lost Communication With Left Side Satellite Acceleration Sensor 1.
Common causes: Common causes include Faulty Left Side Impact Sensor 1, Left Side Impact Sensor 1 harness is open or shorted, Left Side Impact 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 4,826

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 Apr 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0172 Chrysler 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 Diagnostic Trouble Code (DTC) sets when the ORC no longer receives the notification of the status update from the impact sensor. Once set, this DTC is latched for the entire ignition cycle.

OBDII Code U0172 Chrysler - Lost Communication With Left Side Satellite Acceleration Sensor 1 - AutoCodes.com — U0172 Chrysler Code - Lost Communication With Left Side Satellite Acceleration Sensor 1

What does this mean?

What are the Possible Causes of the DTC U0172 Chrysler?

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

How to Fix the DTC U0172 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 U0172 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 U0172 Chrysler code?

Need more information on how to fix the U0172 Chrysler code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U0172 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 U0172 Chrysler Code

1. What are the common symptoms of OBDII code U0172 in a Chrysler indicating "Lost Communication With Left Side Satellite Acceleration Sensor 1"?

The common symptoms include the check engine light coming on, issues with the vehicle's stability control system, and possible problems with the airbag system.

2. What are the possible causes of OBDII code U0172 in a Chrysler?

Possible causes include a faulty left side satellite acceleration sensor, damaged wiring or connectors, software issues, or issues with the vehicle's computer system.

3. How can I diagnose the "Lost Communication With Left Side Satellite Acceleration Sensor 1" issue in my Chrysler?

Diagnosis typically involves using a diagnostic scanner to retrieve the specific trouble code, checking the wiring and connectors for damage, and testing the left side satellite acceleration sensor for proper function.

4. Is it safe to drive my Chrysler with OBDII code U0172 present?

It is generally not recommended to drive the vehicle with this code present, as it can indicate potential issues with critical safety systems like stability control and airbags.

5. Can I repair OBDII code U0172 in my Chrysler myself?

Depending on the cause of the issue, you may be able to repair it yourself by checking and repairing any damaged wiring or connectors. However, for sensor or computer-related issues, it's best to consult a professional.

6. How much does it cost to fix the "Lost Communication With Left Side Satellite Acceleration Sensor 1" problem in a Chrysler?

The cost of fixing this issue can vary widely depending on the exact cause of the problem. It's recommended to get a diagnostic assessment from a qualified mechanic for an accurate estimate.

7. Will resetting the trouble code temporarily fix the issue?

Resetting the trouble code may temporarily turn off the check engine light, but it will not fix the underlying problem causing the "Lost Communication With Left Side Satellite Acceleration Sensor 1" code.

8. Can a bad battery cause OBDII code U0172 in a Chrysler?

A weak or failing battery can potentially cause communication issues with various sensors, including the left side satellite acceleration sensor, leading to the U0172 trouble code.

9. How long does it typically take to repair OBDII code U0172 in a Chrysler?

The repair time can vary depending on the exact cause of the issue and the expertise of the mechanic. Simple fixes like repairing wiring may take less time compared to sensor replacements or computer reprogramming.

10. Is it important to address OBDII code U0172 immediately in a Chrysler?

Yes, it's crucial to address this issue promptly, as it indicates potential problems with critical safety systems in the vehicle. Ignoring the problem could lead to unsafe driving conditions.