AutoCodes – RAM – U1101 RAM

U1101 RAM Code - Lost Communication With PST Display

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the Park Assist Module loses communication with the Park Assist Display. Common causes include Faulty Park Assist Display, Park Assist Display harness is open or shorted, Park Assist Display 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: U1101 RAM indicates Lost Communication With PST Display.
Common causes: Common causes include Faulty Park Assist Display, Park Assist Display harness is open or shorted, Park Assist Display 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 881

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 Jun 24, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code U1101 RAM Description

The Diagnostic Trouble Code (DTC) sets when the Park Assist Module loses communication with the Park Assist Display.

OBDII Code U1101 RAM - Lost Communication With PST Display - AutoCodes.com — U1101 RAM Code - Lost Communication With PST Display

What does this mean?

What are the Possible Causes of the DTC U1101 RAM?

Faulty Park Assist Display
Park Assist Display harness is open or shorted
Park Assist Display circuit poor electrical connection
Faulty Park Assist Module

How to Fix the DTC U1101 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 U1101 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.

Need more information about the U1101 RAM code?

Need more information on how to fix the U1101 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1101 RAM code diagnosed by a professional: Find a repair shop in your area

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 U1101 RAM Code

1. What are the common symptoms of OBDII code U1101 RAM Lost Communication With PST Display?

- Common symptoms include the dashboard displaying error messages, malfunctioning gauges, and issues with the vehicle's display screen.

2. What are the possible causes of OBDII code U1101 RAM Lost Communication With PST Display?

- Possible causes include a faulty PST display unit, damaged wiring or connectors, software glitches, or communication bus issues.

3. How can I diagnose the cause of OBDII code U1101 RAM Lost Communication With PST Display?

- Diagnosis involves checking the connections to the PST display, inspecting the wiring for any damage, and using a diagnostic tool to scan the communication system for faults.

4. What are some repair tips for fixing OBDII code U1101 RAM Lost Communication With PST Display?

- Repair tips include checking and repairing any damaged wiring, ensuring all connections are secure, resetting the vehicle's computer, and updating the software if needed.

5. Can OBDII code U1101 RAM Lost Communication With PST Display be fixed without professional help?

- In some cases, basic troubleshooting steps like checking connections and resetting the system may resolve the issue. However, complex repairs may require professional assistance.

6. Is it safe to continue driving with OBDII code U1101 RAM Lost Communication With PST Display?

- It is generally not recommended to drive with this code unresolved, as it can lead to inaccurate display readings and potentially affect other vehicle systems.

7. How much does it typically cost to repair OBDII code U1101 RAM Lost Communication With PST Display?

- The cost of repair can vary depending on the underlying cause, but it may range from a simple fix like reconnecting wires to a more expensive repair involving component replacement.

8. Can a software update fix OBDII code U1101 RAM Lost Communication With PST Display?

- Yes, sometimes a software update provided by the vehicle manufacturer can resolve communication issues and eliminate the error code.

9. Will resetting the OBDII system clear the U1101 RAM code?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear.

10. How can I prevent OBDII code U1101 RAM Lost Communication With PST Display from occurring in the future?

- Regularly inspecting and maintaining the vehicle's communication system, ensuring proper connections, and promptly addressing any display issues can help prevent this code from reoccurring.