AutoCodes – Dodge – U1439 Dodge

U1439 Dodge Code - Implausible/Missing Programmed Axle Ratio

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the Body Control Module (BCM) reports via Controller Area Network (CAN) message that the axle ratio signal is not available. Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module 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: U1439 Dodge indicates Implausible/Missing Programmed Axle Ratio.
Common causes: Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module 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 802

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 23, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1439 Dodge Description

The Diagnostic Trouble Code (DTC) sets when the Body Control Module (BCM) reports via Controller Area Network (CAN) message that the axle ratio signal is not available.

OBDII Code U1439 Dodge - Implausible/Missing Programmed Axle Ratio - AutoCodes.com — U1439 Dodge Code - Implausible/Missing Programmed Axle Ratio

What does this mean?

What are the Possible Causes of the DTC U1439 Dodge?

Faulty Body Control Module (BCM)
Body Control Module harness is open or shorted
Body Control Module circuit poor electrical connection

How to Fix the DTC U1439 Dodge?

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 U1439 Dodge 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 U1439 Dodge Code

1. What does the OBDII code U1439 for Dodge mean?

The code U1439 indicates an implausible or missing programmed axle ratio in the vehicle's system.

2. What are the common symptoms of the U1439 code?

Common symptoms of the U1439 code may include issues with the vehicle's traction control system, ABS system, and potentially poor overall vehicle performance.

3. What are the possible causes of the U1439 code?

Possible causes of the U1439 code can include a faulty wheel speed sensor, damaged wiring or connectors in the ABS system, or a malfunctioning ABS control module.

4. How can I diagnose the U1439 code?

Diagnosing the U1439 code typically involves using a diagnostic scanner to retrieve the code, checking the ABS system for any related codes or issues, and inspecting the wheel speed sensors and their connections.

5. How can I repair the U1439 code?

Repairing the U1439 code may involve fixing any issues with the wheel speed sensors, repairing damaged wiring or connectors, or reprogramming the ABS control module to ensure the correct axle ratio is programmed.

6. Can I drive my vehicle with the U1439 code?

It is not recommended to drive your vehicle with the U1439 code present, as it may affect the performance of important safety systems like ABS and traction control.

7. How much does it typically cost to repair the U1439 code?

The cost of repairing the U1439 code can vary depending on the specific cause of the issue, but it may range from a relatively inexpensive sensor replacement to a more costly ABS control module repair.

8. Can the U1439 code be triggered by a DIY repair?

If the DIY repair involves working on the ABS system, wheel speed sensors, or related components, it is possible that the U1439 code could be triggered if not done correctly.

9. How long does it take to repair the U1439 code?

The repair time for the U1439 code can vary based on the cause of the issue and the complexity of the repair, but it may range from a quick sensor replacement to a more involved ABS system diagnosis and repair.

10. Is the U1439 code specific to Dodge vehicles?

Yes, the U1439 code is specific to Dodge vehicles and relates to an issue with the programmed axle ratio in the ABS system of the vehicle.