AutoCodes – Fiat – U0172 Fiat

U0172 Fiat 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 Fiat 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 907

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 Apr 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0172 Fiat 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 Fiat - Lost Communication With Left Side Satellite Acceleration Sensor 1 - AutoCodes.com — U0172 Fiat Code - Lost Communication With Left Side Satellite Acceleration Sensor 1

What does this mean?

What are the Possible Causes of the DTC U0172 Fiat?

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 Fiat?

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 Fiat 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 Fiat code?

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

Need Help with the Code?

Get the U0172 Fiat 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 Fiat Code

1. What are the common symptoms of OBDII code U0172 in a Fiat related to lost communication with the left side satellite acceleration sensor 1?

The common symptoms include the ABS warning light or traction control light coming on, unstable handling, and potential issues with the vehicle's stability control system.

2. What are the possible causes of OBDII code U0172 in a Fiat indicating lost communication with the left side satellite acceleration sensor 1?

Possible causes may include a faulty left side satellite acceleration sensor, damaged wiring or connectors, a malfunctioning ABS module, or a communication error within the vehicle's network.

3. How can I diagnose OBDII code U0172 in a Fiat related to lost communication with the left side satellite acceleration sensor 1?

Diagnosis typically involves using a diagnostic scanner to retrieve the fault codes, inspecting the wiring and connectors for damage, testing the left side satellite acceleration sensor, and checking for any communication issues within the vehicle's network.

4. Is it safe to continue driving my Fiat with OBDII code U0172 indicating lost communication with the left side satellite acceleration sensor 1?

It is not recommended to drive the vehicle with this code present, as it can affect the vehicle's stability control system and potentially compromise safety. It is best to address the issue promptly.

5. Can I repair OBDII code U0172 in a Fiat related to lost communication with the left side satellite acceleration sensor 1 myself?

While some DIY enthusiasts may attempt to diagnose and repair this issue, it is recommended to consult a professional mechanic or dealership with experience in handling ABS and stability control system problems for an accurate diagnosis and proper repair.

6. What are some potential repair tips for resolving OBDII code U0172 in a Fiat indicating lost communication with the left side satellite acceleration sensor 1?

Repair tips may include checking and repairing any damaged wiring or connectors, replacing the left side satellite acceleration sensor if faulty, resetting the ABS module, and ensuring proper communication within the vehicle's network.

7. How much can I expect to pay for repairing OBDII code U0172 in a Fiat due to lost communication with the left side satellite acceleration sensor 1?

The cost of repair can vary depending on the exact cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts needed. It is advisable to obtain a few quotes from different mechanics or dealerships.

8. Will resetting the OBDII code U0172 in a Fiat resolve the issue of lost communication with the left side satellite acceleration sensor 1?

Simply resetting the code may temporarily clear the warning lights, but it will not fix the underlying problem causing the lost communication. Proper diagnosis and repair are necessary to address the issue effectively.

9. How long does it typically take to repair OBDII code U0172 in a Fiat related to lost communication with the left side satellite acceleration sensor 1?

The repair time can vary depending on the exact cause of the issue, the availability of parts, and the workload of the repair shop. In some cases, it may be resolved within a few hours, while more complex issues could take longer.

10. Can OBDII code U0172 in a Fiat indicating lost communication with the left side satellite acceleration sensor 1 cause other problems if left unaddressed?

Leaving this code unaddressed can potentially lead to further issues with the vehicle's stability control system, ABS functionality, and overall safety. It is important to address the problem promptly to prevent any additional complications.