AutoCodes – Jeep – U1479 Jeep

U1479 Jeep 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 Jeep 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 1,162

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

What does this mean?

What are the Possible Causes of the DTC U1479 Jeep?

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 Jeep?

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 Jeep 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 Jeep Code

1. What are the common symptoms of OBDII code U1479 in a Jeep related to "Implausible Data Received From Shifter Mechanical Failure"?

- Common symptoms include issues with shifting gears, the inability to start the vehicle, and warning lights on the dashboard.

2. What could be the possible causes of OBDII code U1479 in a Jeep indicating "Implausible Data Received From Shifter Mechanical Failure"?

- Possible causes include a faulty shifter mechanism, damaged wiring harness, loose connections, or a defective transmission control module.

3. How can I diagnose the OBDII code U1479 in my Jeep for "Implausible Data Received From Shifter Mechanical Failure"?

- Diagnosis involves using a scan tool to read the code, checking the connections to the shifter and transmission control module, and inspecting the wiring for any damage.

4. Can driving with OBDII code U1479 in a Jeep with "Implausible Data Received From Shifter Mechanical Failure" cause further damage?

- Continuing to drive with this code may lead to shifting issues, potential transmission damage, and safety hazards. It is recommended to address the issue promptly.

5. What are some repair tips for resolving OBDII code U1479 in a Jeep related to "Implausible Data Received From Shifter Mechanical Failure"?

- Repair tips include checking and repairing any damaged wiring, ensuring proper connections, resetting the code, and, if necessary, replacing the shifter mechanism or transmission control module.

6. Is it possible to reset the OBDII code U1479 in a Jeep indicating "Implausible Data Received From Shifter Mechanical Failure" without addressing the underlying issue?

- While you can clear the code temporarily, the underlying issue causing the code will persist, leading to potential safety risks and further damage if left unresolved.

7. How much does it typically cost to repair OBDII code U1479 in a Jeep for "Implausible Data Received From Shifter Mechanical Failure"?

- The cost of repair can vary depending on the exact cause of the issue but may range from a few hundred to a few thousand dollars, including parts and labor.

8. Can weather conditions or external factors trigger OBDII code U1479 in a Jeep related to "Implausible Data Received From Shifter Mechanical Failure"?

- Extreme weather conditions, water damage, or physical impact to the shifter area can sometimes trigger this code due to interference with the shifter mechanism or wiring.

9. Are there any preventive maintenance steps to avoid encountering OBDII code U1479 in a Jeep due to "Implausible Data Received From Shifter Mechanical Failure"?

- Regularly inspecting and maintaining the shifter mechanism, checking for wiring issues, and addressing any warning signs promptly can help prevent this code from occurring.

10. Can a DIY enthusiast with automotive knowledge repair OBDII code U1479 in a Jeep associated with "Implausible Data Received From Shifter Mechanical Failure"?

- Depending on the specific cause and the individual's expertise, some DIY repairs such as checking connections and replacing damaged wiring may be possible, but more complex issues may require professional assistance.