AutoCodes – Dodge – U0174 Dodge

U0174 Dodge Code - Lost Communication With Left Side Satellite Acceleration Sensor 3

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 3, Left Side Impact Sensor 3 harness is open or shorted, Left Side Impact Sensor 3 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: U0174 Dodge indicates Lost Communication With Left Side Satellite Acceleration Sensor 3.
Common causes: Common causes include Faulty Left Side Impact Sensor 3, Left Side Impact Sensor 3 harness is open or shorted, Left Side Impact Sensor 3 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 1,307

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
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code U0174 Dodge 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 side impact sensor. Once set, this DTC is latched for the entire ignition cycle.

OBDII Code U0174 Dodge - Lost Communication With Left Side Satellite Acceleration Sensor 3 - AutoCodes.com — U0174 Dodge Code - Lost Communication With Left Side Satellite Acceleration Sensor 3

What does this mean?

What are the Possible Causes of the DTC U0174 Dodge?

Faulty Left Side Impact Sensor 3
Left Side Impact Sensor 3 harness is open or shorted
Left Side Impact Sensor 3 circuit poor electrical connection
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC U0174 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 does this mean?

Code Tech Notes

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0174 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.

Need more information about the U0174 Dodge code?

Need more information on how to fix the U0174 Dodge code? Get Access to Factory Service Manuals

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Get the U0174 Dodge 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 U0174 Dodge Code

1. What are common symptoms of OBDII code U0174 in a Dodge indicating lost communication with the left side satellite acceleration sensor 3?

- Common symptoms include the malfunction indicator light (MIL) illuminating on the dashboard, reduced vehicle performance, and potential issues with the vehicle's stability control system.

2. What are the possible causes of OBDII code U0174 in a Dodge?

- Possible causes include a faulty left side satellite acceleration sensor 3, damaged wiring or connectors related to the sensor, software issues, or a communication fault within the vehicle's network.

3. How can I diagnose the OBDII code U0174 in my Dodge vehicle?

- Diagnosis typically involves using a diagnostic scanner to retrieve the trouble codes, inspecting the left side satellite acceleration sensor 3 and its connections for damage, and performing a thorough visual inspection of related components.

4. Can I repair the U0174 code in my Dodge at home?

- Depending on the cause, you may be able to address the issue at home by checking and repairing damaged wiring or connectors, resetting the fault codes, or replacing the left side satellite acceleration sensor 3 if necessary.

5. Is it safe to drive my Dodge with the U0174 code present?

- It is not recommended to drive your Dodge with the U0174 code active, as it can affect the vehicle's performance and safety systems. It's best to address the issue promptly to avoid potential risks.

6. How much does it typically cost to repair the U0174 code in a Dodge?

- The cost of repairing the U0174 code can vary depending on the underlying cause. Costs may include sensor replacement, wiring repairs, or diagnostic fees if you choose to take your vehicle to a professional mechanic.

7. Are there any recalls or technical service bulletins related to the U0174 code in Dodge vehicles?

- It's advisable to check with a Dodge dealership or online databases for any recalls or technical service bulletins related to the U0174 code in your specific Dodge model to see if there are known issues or remedies available.

8. Can a low battery voltage trigger the U0174 code in a Dodge?

- Yes, low battery voltage or electrical issues can sometimes lead to communication faults and trigger codes like U0174. Ensure your vehicle's battery and electrical system are in good condition to prevent such issues.

9. How long does it take to repair the U0174 code in a Dodge?

- The repair time for the U0174 code can vary based on the cause of the issue and the complexity of the repair. Simple fixes like sensor replacement may take less time, while more intricate wiring repairs could require more time.

10. Will resetting the trouble codes make the U0174 code go away permanently?

- Resetting the trouble codes may temporarily clear the MIL light, but if the underlying issue causing the U0174 code is not addressed and repaired, the code is likely to reappear. It's important to diagnose and fix the root cause of the problem.