AutoCodes – RAM – U0184 RAM

U0184 RAM Code - Lost Communication With Radio Unit

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 Radio Unit, Radio Unit harness is open or shorted, Radio Unit 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: U0184 RAM indicates Lost Communication With Radio Unit.
Common causes: Common causes include Faulty Radio Unit, Radio Unit harness is open or shorted, Radio Unit 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 964

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 Apr 02, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0184 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. CAN bus uses two dedicated wires for communication. The wires are called CAN high and CAN low. When the CAN bus is in idle mode, both lines carry 2.5V. When data bits are being transmitted, the CAN high line goes to 3.75V, and the CAN low drops to 1.25V, thereby generating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Radio Unit has not been received.

OBDII Code U0184 RAM - Lost Communication With Radio Unit - AutoCodes.com — U0184 RAM Code - Lost Communication With Radio Unit

What does this mean?

What are the Possible Causes of the DTC U0184 RAM?

Faulty Radio Unit
Radio Unit harness is open or shorted
Radio Unit circuit poor electrical connection

How to Fix the DTC U0184 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 U0184 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 U0184 RAM Code

1. What are the common symptoms of OBDII code U0184 RAM Lost Communication With Radio Unit?

- Common symptoms include the radio not functioning properly, loss of communication with other modules, and possibly a check engine light.

2. What are some possible causes of OBDII code U0184 RAM?

- Possible causes include a faulty radio unit, damaged wiring or connectors, a defective communication module, or a software issue.

3. How can I diagnose the cause of OBDII code U0184 RAM?

- Diagnosing this code typically involves checking the radio unit for functionality, inspecting wiring and connectors for damage, and using a diagnostic scanner to communicate with the affected module.

4. Can I still drive my vehicle with OBDII code U0184 RAM present?

- It is generally safe to drive the vehicle with this code, but you may experience issues with the radio or other modules that rely on communication with the radio unit.

5. How can I repair OBDII code U0184 RAM Lost Communication With Radio Unit?

- Repairing this code usually involves addressing the root cause, such as replacing a faulty radio unit, repairing damaged wiring, or reprogramming modules if necessary.

6. Is it possible to reset OBDII code U0184 RAM without fixing the underlying issue?

- While clearing the code may temporarily remove the check engine light, it is important to address the root cause to prevent the issue from recurring.

7. Can a DIY enthusiast fix OBDII code U0184 RAM, or is professional assistance recommended?

- Depending on your skills and experience with automotive repairs, you may be able to address this code yourself by following diagnostic procedures and repair guides. Professional assistance is recommended if you are unsure.

8. Are there any recalls or technical service bulletins related to OBDII code U0184 RAM?

- It is advisable to check with the vehicle manufacturer or authorized service centers for any recalls or technical service bulletins related to this specific OBDII code.

9. Will disconnecting the battery reset OBDII code U0184 RAM?

- Disconnecting the battery may reset the check engine light, but it will not fix the underlying issue causing the U0184 code. It is recommended to diagnose and repair the problem to prevent further issues.

10. How long does it typically take to repair OBDII code U0184 RAM?

- The time required to repair this code can vary depending on the underlying cause and complexity of the repair. It may take anywhere from a few hours to a day or more, especially if professional assistance is needed.