AutoCodes – Jeep – U0599 Jeep

U0599 Jeep Code - Invalid Data Received From DC To DC Converter Control Module 'A'

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty DC To DC Converter Control Module 'A', DC To DC Converter Control Module 'A' harness is open or shorted, DC To DC Converter Control Module 'A' 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: U0599 Jeep indicates Invalid Data Received From DC To DC Converter Control Module 'A'.
Common causes: Common causes include Faulty DC To DC Converter Control Module 'A', DC To DC Converter Control Module 'A' harness is open or shorted, DC To DC Converter Control Module 'A' 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 1,553

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Apr 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0599 Jeep Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. Some devices are constantly receiving information from other devices through serial data communication network. The invalid data Diagnostic Trouble Code (DTC) will be set when a receiving device detects a discrepancy in the information it receives from the DC To DC Converter Control Module 'A' causing its integrity to be questioned.

OBDII Code U0599 Jeep - Invalid Data Received From DC To DC Converter Control Module 'A' - AutoCodes.com — U0599 Jeep Code - Invalid Data Received From DC To DC Converter Control Module 'A'

What does this mean?

What are the Possible Causes of the DTC U0599 Jeep?

Faulty DC To DC Converter Control Module 'A'
DC To DC Converter Control Module 'A' harness is open or shorted
DC To DC Converter Control Module 'A' circuit poor electrical connection

How to Fix the DTC U0599 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 U0599 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 U0599 Jeep Code

What does the OBDII code U0599 mean for my Jeep?

The U0599 code indicates that the vehicle's control module is receiving invalid data from the DC to DC Converter Control Module 'A', which can affect the vehicle's electrical system performance.

What are the common symptoms of the U0599 code?

Symptoms may include dashboard warning lights, erratic electrical behavior, poor fuel economy, or issues with the vehicle's charging system.

What could cause the U0599 code to trigger?

Potential causes include a malfunctioning DC to DC converter control module, wiring issues, poor connections, or faults in the vehicle's electrical system.

How can I diagnose the U0599 code?

Using an OBDII scanner, you can check for the U0599 code and any related codes. Inspect the wiring and connectors associated with the DC to DC converter for damage or corrosion.

What are some common repairs for the U0599 code?

Repairs may involve replacing the DC to DC converter control module, repairing or replacing damaged wiring or connectors, or resetting the vehicle's computer after addressing any underlying issues.

Can I drive my Jeep with the U0599 code?

While it may be possible to drive, it is not recommended as it could lead to further electrical issues or poor performance. It's best to diagnose and fix the problem as soon as possible.

Will clearing the code fix the problem?

Clearing the code may temporarily turn off the warning light, but if the underlying issue is not addressed, the code will likely return.

How much will it cost to fix the U0599 code?

Repair costs can vary widely depending on the cause, ranging from a simple wiring repair to replacing the control module, potentially totaling anywhere from $100 to $1,000 or more.

Is the U0599 code serious?

Yes, it can be serious as it indicates a fault in the electrical system, which may lead to more significant issues if not resolved promptly.