AutoCodes – RAM – U1471 RAM

U1471 RAM Code - Implausible Data Received From Left Frontal 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 Frontal Acceleration Sensor, Left Frontal Acceleration Sensor harness is open or shorted, Left Frontal Acceleration Sensor 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: U1471 RAM indicates Implausible Data Received From Left Frontal Acceleration Sensor.
Common causes: Common causes include Faulty Left Frontal Acceleration Sensor, Left Frontal Acceleration Sensor harness is open or shorted, Left Frontal Acceleration Sensor 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 737

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 U1471 RAM 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 Front Impact Sensor is mounted in the engine compartment behind the front lamp unit. The Left Front Impact Sensor is directly hard wired to the Occupant Restraint Controller (ORC) Module. 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 Front Impact Sensor 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 100 milliseconds (ms). The DTC will go to Stored after the ORC Left Front Impact Sensor communication fault has been removed or the suspect front impact sensor has been replaced. The clearing of this fault is immediate upon the suspect internal error being removed or the suspect sensor replaced. The Airbag Warning Lamp (AWL) will set in the instrument cluster.

OBDII Code U1471 RAM - Implausible Data Received From Left Frontal Acceleration Sensor - AutoCodes.com — U1471 RAM Code - Implausible Data Received From Left Frontal Acceleration Sensor

What does this mean?

What are the Possible Causes of the DTC U1471 RAM?

Faulty Left Frontal Acceleration Sensor
Left Frontal Acceleration Sensor harness is open or shorted
Left Frontal Acceleration Sensor circuit poor electrical connection
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC U1471 RAM?

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 U1471 RAM 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 U1471 RAM code?

Need more information on how to fix the U1471 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1471 RAM 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 U1471 RAM Code

1. What are common symptoms of OBDII code U1471 RAM?

- Common symptoms include the illumination of the check engine light, ABS light, or traction control light on the dashboard. You may also experience issues with the vehicle's stability control system.

2. What could cause the OBDII code U1471 RAM to trigger?

- The code U1471 RAM is typically triggered by an issue with the left frontal acceleration sensor. This could be caused by a faulty sensor, wiring issues, or sensor calibration problems.

3. How can I diagnose the issue related to code U1471 RAM?

- Diagnosing the issue involves checking the wiring and connections to the left frontal acceleration sensor, testing the sensor itself for proper functionality, and ensuring that the sensor is properly calibrated.

4. Can I still drive my vehicle with the U1471 RAM code?

- It is not recommended to drive the vehicle with the U1471 RAM code present, as it indicates a potential issue with the stability control system. It is best to address the problem promptly to ensure safe driving conditions.

5. How can I repair the U1471 RAM code?

- Repairing the U1471 RAM code may involve replacing the left frontal acceleration sensor, repairing any damaged wiring or connections, or recalibrating the sensor. It is recommended to consult a professional mechanic for proper diagnosis and repairs.

6. Is the U1471 RAM code a serious issue?

- The U1471 RAM code is considered a serious issue as it pertains to the vehicle's stability control system. Ignoring this code can affect the handling and stability of the vehicle, potentially compromising safety.

7. How much does it cost to fix the U1471 RAM code?

- The cost of fixing the U1471 RAM code can vary depending on the underlying cause of the issue, the cost of parts, and labor charges. It is advisable to get a diagnostic from a mechanic to determine the exact cost.

8. Can I reset the U1471 RAM code myself?

- You can attempt to reset the U1471 RAM code using an OBDII scanner, but it is important to address the root cause of the issue first. Simply resetting the code without fixing the underlying problem may result in the code reappearing.

9. Will the U1471 RAM code affect my vehicle's performance?

- The U1471 RAM code may affect the vehicle's stability and handling due to issues with the left frontal acceleration sensor. It is important to address the code promptly to avoid any performance issues.

10. How long does it take to fix the U1471 RAM code?

- The time it takes to fix the U1471 RAM code can vary depending on the extent of the issue and the availability of parts. Simple repairs like sensor recalibration may take less time, while sensor replacement or wiring repairs may take longer.