AutoCodes – RAM – U0599 RAM

U0599 RAM 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 RAM 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 820

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 RAM 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 RAM - Invalid Data Received From DC To DC Converter Control Module 'A' - AutoCodes.com — U0599 RAM 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 RAM?

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 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 U0599 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 U0599 RAM Code

1. What does the OBDII code U0599 mean on a RAM vehicle?

The U0599 code indicates "Invalid Data Received From DC To DC Converter Control Module 'A'," meaning the vehicle's control module has detected unreliable or corrupted data from the DC to DC converter.

2. What are the common symptoms of the U0599 code in a RAM vehicle?

Common symptoms include warning lights on the dashboard (e.g., check engine or battery light), reduced charging efficiency, or electrical system malfunctions.

3. What causes the U0599 code to appear on a RAM vehicle?

The U0599 code can be caused by a faulty DC to DC converter, damaged wiring or connectors, software issues in the control module, or interference in the data communication network.

4. Can a faulty battery cause the U0599 code?

While not the primary cause, a failing battery can indirectly contribute to the issue by affecting voltage stability, which may lead to communication errors.

5. How can I diagnose the U0599 code on my RAM vehicle?

Start by inspecting the wiring and connectors for damage, check the DC to DC converter for faults, and use a scan tool to monitor the vehicleâ€™s data communication for irregularities.

6. Is it safe to drive with the U0599 code on a RAM vehicle?

Itâ€™s not recommended to drive for extended periods with this code, as it could lead to electrical issues or reduced charging capability, potentially stranding the vehicle.

7. How do I fix the U0599 code on a RAM vehicle?

Repairs may include replacing a faulty DC to DC converter, repairing damaged wiring or connectors, updating the vehicle's software, or clearing the error using a scan tool after resolving the issue.

8. Can the U0599 code be caused by a software glitch?

Yes, outdated or corrupted software in the vehicle's control module can sometimes cause communication errors and trigger the U0599 code.

9. How much does it cost to repair the U0599 code on a RAM vehicle?

Repair costs vary but typically range from $100 for minor wiring repairs to over $1,000 for replacing a DC to DC converter, depending on parts and labor rates.

10. Do I need a professional mechanic to fix the U0599 code?

While basic checks like inspecting wiring can be done by a knowledgeable DIYer, diagnosing and repairing module-related issues often require professional tools and expertise.