AutoCodes – RAM – U1479 RAM

U1479 RAM Code - Implausible Data Received From Shifter Mechanical Failure

Quick Answer

The purpose of the diagnostic is to detect a breakage of the mechanical connection between the shift lever and the sensor module mounted to the lever. Common causes include Faulty Shifter, Shifter harness is open or shorted, Shifter 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: U1479 RAM indicates Implausible Data Received From Shifter Mechanical Failure.
Common causes: Common causes include Faulty Shifter, Shifter harness is open or shorted, Shifter 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 803

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 27, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1479 RAM Description

The purpose of the diagnostic is to detect a breakage of the mechanical connection between the shift lever and the sensor module mounted to the lever. The shift lever is moved about a pivot point located in the middle of the lever and is held in the home position by two opposing springs. The sensor module consists of two redundant sensors and is mounted to the lower end of the shift lever by a connection pin. The driver controls the shift lever by pushing or pulling the upper end of the lever and the position is read by the sensor module. If the connection pin between the shift lever and the sensor module breaks then the sensor module is pulled to a failure position by a separate spring mounted to the sensor module. The failure is detected if one or both of the two shifter position sensors indicate the sensor module failure position is reached.

OBDII Code U1479 RAM - Implausible Data Received From Shifter Mechanical Failure - AutoCodes.com — U1479 RAM Code - Implausible Data Received From Shifter Mechanical Failure

What does this mean?

What are the Possible Causes of the DTC U1479 RAM?

Faulty Shifter
Shifter harness is open or shorted
Shifter circuit poor electrical connection
Faulty Electronic Shift Module (ESM)
Faulty Transmission Control Module (TCM)

How to Fix the DTC U1479 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 U1479 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.

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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 U1479 RAM Code

1. What are the common symptoms of OBDII code U1479 RAM?

- Common symptoms include issues with shifting gears, difficulty engaging gears, and potential transmission malfunctions.

2. What causes the OBDII code U1479 RAM to trigger?

- The code is triggered when the vehicle's onboard computer detects implausible data received from the shifter, typically due to mechanical failure in the shifter mechanism.

3. How serious is the U1479 RAM code?

- The code should be addressed promptly as it can lead to transmission-related issues and affect the vehicle's drivability and safety.

4. Can driving with the U1479 RAM code cause further damage?

- Continuing to drive with the code present can potentially cause additional strain on the transmission components, leading to more severe issues over time.

5. How can I diagnose the U1479 RAM code?

- Diagnosis typically involves scanning the vehicle's onboard computer with an OBDII scanner to retrieve the specific fault code and identify the underlying issue.

6. What are some repair tips for fixing the U1479 RAM code?

- Repairing the code often involves inspecting the shifter mechanism for any mechanical failures, such as broken components or maladjustments, and repairing or replacing as needed.

7. Can I reset the U1479 RAM code on my own?

- While you can clear the code with an OBDII scanner, it is crucial to address the root cause of the issue to prevent the code from reoccurring.

8. Is it safe to continue driving if the U1479 RAM code appears intermittently?

- It is not recommended to drive with the code appearing intermittently, as it indicates an ongoing issue that requires attention to prevent potential transmission problems.

9. Are there any common DIY fixes for the U1479 RAM code?

- DIY fixes may include checking and adjusting the shifter linkage, ensuring proper connection of shifter components, and inspecting for any visible damage.

10. How much does it typically cost to repair the U1479 RAM code?

- Repair costs can vary depending on the extent of the mechanical failure and whether any components need to be replaced, but it is advisable to consult a professional mechanic for an accurate estimate.