AutoCodes – Generic – U1479

U1479 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 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 697

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

What does this mean?

What are the Possible Causes of the DTC U1479?

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?

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 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 U1479 code?

Need more information on how to fix the U1479 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1479 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U1479 Chrysler — Implausible Data Received From Shifter Mechanical Failure
U1479 Dodge — Implausible Data Received From Shifter Mechanical Failure
U1479 Jeep — Implausible Data Received From Shifter Mechanical Failure
U1479 RAM — Implausible Data Received From Shifter Mechanical Failure

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 Code

1. What are the common symptoms of OBDII code U1479 (Implausible Data Received From Shifter Mechanical Failure)?

- Common symptoms include difficulty shifting gears, the gear indicator not matching the actual gear, and possible stalling or loss of power.

2. What can cause OBDII code U1479 to trigger?

- This code can be triggered by issues such as a malfunctioning shifter position sensor, wiring issues, or a faulty transmission control module.

3. How serious is the U1479 code related to shifter mechanical failure?

- The U1479 code should be addressed promptly as it can lead to potential safety hazards and affect the drivability of the vehicle.

4. What are some DIY repair tips for OBDII code U1479?

- DIY repair tips may include checking and cleaning the shifter position sensor, inspecting the wiring for any damage, and ensuring proper connection of all related components.

5. Can driving with the U1479 code present cause further damage to the vehicle?

- Continued driving with the U1479 code present can potentially lead to transmission issues or complete loss of the ability to shift gears, so it is advisable to address the problem promptly.

6. How can a mechanic diagnose the cause of OBDII code U1479?

- A mechanic can use a diagnostic scanner to retrieve the code, perform a visual inspection of the shifter mechanism and related components, and conduct further testing to pinpoint the exact cause.

7. Is it safe to continue driving with the U1479 code if the vehicle is still shifting normally?

- It is not recommended to continue driving with the U1479 code even if the vehicle is shifting normally, as the underlying issue may worsen over time and compromise safety.

8. Are there any recalls or technical service bulletins related to OBDII code U1479?

- It's advisable to check with the vehicle manufacturer or authorized dealerships for any recalls or technical service bulletins related to the U1479 code to see if there are known issues or recommended solutions.

9. Can weather or environmental factors contribute to triggering the U1479 code?

- Extreme temperatures, moisture, or debris entering the shifter mechanism can potentially contribute to triggering the U1479 code, so it's important to keep these factors in mind during diagnosis and repair.

10. How much does it typically cost to repair OBDII code U1479 at a repair shop?

- The cost of repairing OBDII code U1479 can vary depending on the exact cause of the issue, but it may involve sensor replacement, wiring repairs, or module reprogramming, with costs ranging from $200 to $800 or more.