AutoCodes – Chrysler – U12A7 Chrysler

U12A7 Chrysler Code - Lost Communication With Display Screen Module

Quick Answer

The Diagnostic Trouble Code (DTC) sets when there is a lost communication with Display Screen Module. Common causes include Faulty Display Screen Module, Display Screen Module harness is open or shorted, Display Screen 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: U12A7 Chrysler indicates Lost Communication With Display Screen Module.
Common causes: Common causes include Faulty Display Screen Module, Display Screen Module harness is open or shorted, Display Screen 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 456

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 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U12A7 Chrysler Description

The Diagnostic Trouble Code (DTC) sets when there is a lost communication with Display Screen Module.

OBDII Code U12A7 Chrysler - Lost Communication With Display Screen Module - AutoCodes.com — U12A7 Chrysler Code - Lost Communication With Display Screen Module

What does this mean?

What are the Possible Causes of the DTC U12A7 Chrysler?

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

How to Fix the DTC U12A7 Chrysler?

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 U12A7 Chrysler 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 U12A7 Chrysler Code

1. What are the common symptoms of OBDII code U12A7 (Lost Communication With Display Screen Module)?

- Common symptoms include a blank or frozen display screen, malfunctioning controls on the screen, and error messages related to the screen module.

2. What are the possible causes of the U12A7 code in a Chrysler vehicle?

- The U12A7 code can be caused by issues such as a faulty display screen module, damaged wiring or connectors, software glitches, or a communication network problem.

3. How can I diagnose the U12A7 code related to the lost communication with the display screen module?

- Diagnosing the U12A7 code involves checking the connections and wiring to the display screen module, scanning for other related trouble codes, and performing a communication network test.

4. Can I still drive my Chrysler vehicle with the U12A7 code present?

- It is generally safe to drive the vehicle with the U12A7 code, but it is recommended to address the issue promptly to prevent any inconvenience or potential safety hazards.

5. How can I repair the U12A7 code indicating lost communication with the display screen module?

- Repairing the U12A7 code may involve resetting the display module, checking and repairing any damaged wiring or connectors, updating software if applicable, or replacing the display screen module.

6. Are there any DIY tips for troubleshooting the U12A7 code before seeking professional help?

- DIY tips include checking the display screen connections, ensuring power supply to the module, checking for blown fuses, and performing a visual inspection of the wiring for any visible damage.

7. Is it necessary to reset the U12A7 code after repairing the issue with the display screen module?

- Yes, it is recommended to clear the U12A7 code using an OBDII scanner after resolving the communication issue with the display screen module to reset the system and ensure proper operation.

8. How common is the U12A7 code related to lost communication with the display screen module in Chrysler vehicles?

- The U12A7 code is relatively common in Chrysler vehicles equipped with advanced display systems, and it can occur due to various reasons related to the display module and communication network.

9. Can extreme weather conditions or environmental factors trigger the U12A7 code?

- Yes, extreme temperatures, moisture infiltration, or environmental factors can potentially trigger the U12A7 code by affecting the display screen module or its connections.

10. What should I do if the U12A7 code persists after attempting repairs or troubleshooting steps?

- If the U12A7 code persists even after attempted repairs, it is recommended to seek professional assistance from a certified mechanic or dealership for a more in-depth diagnosis and repair.