AutoCodes – RAM – U11E3 RAM

U11E3 RAM Code - TCM Lost Communication With ESM On DPT CAN

Quick Answer

The purpose of the diagnostic is to monitor the Controller Area Network (CAN) bus, the transmitted messages on the CAN bus and the validity of the CAN signals. Common causes include Faulty Electronic Shift Module (ESM), Electronic Shift Module (ESM) harness is open or shorted, Electronic Shift Module (ESM) 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: U11E3 RAM indicates TCM Lost Communication With ESM On DPT CAN.
Common causes: Common causes include Faulty Electronic Shift Module (ESM), Electronic Shift Module (ESM) harness is open or shorted, Electronic Shift Module (ESM) 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 2,607

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 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U11E3 RAM Description

The purpose of the diagnostic is to monitor the Controller Area Network (CAN) bus, the transmitted messages on the CAN bus and the validity of the CAN signals. Several control units are connected to the CAN bus which send their messages cyclically in a defined time window. The messages contain multiple signals representing vehicle information. The Diagnostic Trouble Code (DTC) sets when the Controller Area Network - Dedicated Powertrain (CAN-DPT) bus messages not received from the Electronic Shift Module (ESM) for two to five seconds.

OBDII Code U11E3 RAM - TCM Lost Communication With ESM On DPT CAN - AutoCodes.com — U11E3 RAM Code - TCM Lost Communication With ESM On DPT CAN

What does this mean?

What are the Possible Causes of the DTC U11E3 RAM?

Faulty Electronic Shift Module (ESM)
Electronic Shift Module (ESM) harness is open or shorted
Electronic Shift Module (ESM) circuit poor electrical connection
Controller Area Network
Dedicated Powertrain (CAN-DPT) Bus open or shorted

How to Fix the DTC U11E3 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 U11E3 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 U11E3 RAM Code

1. What does the OBDII code U11E3 RAM mean?

- The code U11E3 RAM indicates that there is a communication problem between the Transmission Control Module (TCM) and the Electronic Shift Module (ESM) over the Data Link Connector (DLC) Powertrain Controller Area Network (CAN) bus.

2. What are the common symptoms of U11E3 RAM code?

- Common symptoms of the U11E3 RAM code may include issues with shifting gears, hesitation or jerking during acceleration, illuminated check engine light, and in some cases, the vehicle may go into limp mode.

3. What are the possible causes of U11E3 RAM code?

- The possible causes of the U11E3 RAM code include faulty wiring or connectors, a malfunctioning TCM or ESM, a damaged CAN bus, low battery voltage, or software issues.

4. How can I diagnose the U11E3 RAM code?

- Diagnosing the U11E3 RAM code requires using a professional OBDII scanner to retrieve the code and then conducting a thorough inspection of the TCM, ESM, wiring, connectors, and CAN bus for any signs of damage or malfunction.

5. How can I repair the U11E3 RAM code?

- Repairing the U11E3 RAM code may involve repairing or replacing damaged wiring or connectors, reprogramming the TCM or ESM, replacing the TCM or ESM if faulty, ensuring proper battery voltage, and clearing the code with a scanner.

6. Can I drive my vehicle with the U11E3 RAM code?

- It is not recommended to drive your vehicle with the U11E3 RAM code present, as it can lead to potential transmission issues and unsafe driving conditions. It is best to address the problem promptly.

7. How much does it cost to fix the U11E3 RAM code?

- The cost of fixing the U11E3 RAM code can vary depending on the root cause of the issue, parts needed for repair, and labor costs. It is advisable to consult a professional mechanic for an accurate estimate.

8. Will resetting the code make it go away permanently?

- Resetting the U11E3 RAM code may temporarily clear the code, but if the underlying issue is not addressed and repaired, the code is likely to return. It is essential to diagnose and fix the root cause of the problem.

9. Is the U11E3 RAM code a serious issue?

- The U11E3 RAM code should be taken seriously as it can affect the proper functioning of the transmission system in your vehicle. Ignoring the code can lead to more severe transmission problems and potential safety hazards.

10. Can a DIY enthusiast fix the U11E3 RAM code?

- While some DIY enthusiasts may be able to diagnose and fix simple wiring or connector issues related to the U11E3 RAM code, it is recommended to seek professional help for more complex problems involving the TCM, ESM, or CAN bus.