AutoCodes – RAM – U1476 RAM

U1476 RAM Code - Implausible Data Received From Right 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 Right Frontal Acceleration Sensor, Right Frontal Acceleration Sensor harness is open or shorted, Right 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: U1476 RAM indicates Implausible Data Received From Right Frontal Acceleration Sensor.
Common causes: Common causes include Faulty Right Frontal Acceleration Sensor, Right Frontal Acceleration Sensor harness is open or shorted, Right 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 864

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 U1476 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 Right Front Impact Sensor is mounted in the engine compartment behind the front lamp unit. The Right 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 Right 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 Right 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 U1476 RAM - Implausible Data Received From Right Frontal Acceleration Sensor - AutoCodes.com — U1476 RAM Code - Implausible Data Received From Right Frontal Acceleration Sensor

What does this mean?

What are the Possible Causes of the DTC U1476 RAM?

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

How to Fix the DTC U1476 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 U1476 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 U1476 RAM code?

Need more information on how to fix the U1476 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1476 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 U1476 RAM Code

1. What are the common symptoms of OBDII code U1476?

The common symptoms of OBDII code U1476 include the malfunction indicator light (MIL) illuminating on the dashboard, inaccurate or erratic readings from the right frontal acceleration sensor, and possible issues with the vehicle's stability control system.

2. What can cause the OBDII code U1476 to trigger?

The OBDII code U1476 is triggered when the engine control module (ECM) detects implausible data received from the right frontal acceleration sensor. This can be caused by sensor malfunctions, wiring issues, or problems with the sensor's calibration.

3. How can I diagnose the cause of OBDII code U1476?

Diagnosing the cause of OBDII code U1476 typically involves using a diagnostic scanner to retrieve the fault codes, inspecting the right frontal acceleration sensor and its wiring for any visible damage, and performing sensor calibration or replacement if necessary.

4. What are some repair tips for fixing OBDII code U1476?

Repair tips for fixing OBDII code U1476 may include checking and repairing any damaged wiring or connectors related to the right frontal acceleration sensor, recalibrating the sensor according to manufacturer specifications, or replacing the sensor if it is faulty.

5. Can I continue driving with OBDII code U1476 active?

It is not recommended to continue driving with OBDII code U1476 active, as this may affect the accuracy of the vehicle's stability control system and compromise overall safety. It is best to address the issue promptly to prevent further complications.

6. How much does it typically cost to repair OBDII code U1476?

The cost of repairing OBDII code U1476 can vary depending on the underlying cause of the issue, the need for sensor replacement, and labor costs. It is advisable to consult with a certified mechanic or dealership for an accurate estimate.

7. Can OBDII code U1476 be a sign of other underlying problems in the vehicle?

OBDII code U1476 is primarily related to issues with the right frontal acceleration sensor. However, it is important to address this code promptly as it can impact the vehicle's stability control system and potentially lead to other related problems if left unresolved.

8. Are there any preventive measures to avoid OBDII code U1476 from recurring?

To prevent OBDII code U1476 from recurring, it is recommended to regularly inspect and maintain the right frontal acceleration sensor, address any wiring issues promptly, and follow the manufacturer's recommended maintenance schedule for the vehicle's stability control system.

9. Can I reset OBDII code U1476 without fixing the underlying issue?

While it is possible to clear the OBDII code U1476 using a diagnostic scanner, it is not recommended to do so without addressing the underlying issue. Resetting the code without fixing the problem may lead to recurring issues and potential safety concerns.

10. How long does it typically take to repair OBDII code U1476?

The time taken to repair OBDII code U1476 can vary depending on the extent of the issue, the availability of replacement parts, and the technician's expertise. In some cases, the repair can be completed within a few hours, while more complex issues may take longer to resolve.