AutoCodes – RAM – U11C7 RAM

U11C7 RAM Code - Lost Maximum Engine Torque Message

Quick Answer

This diagnostic determines the availability of the maximum indicated engine torque signal sent by the Powertrain Control Module (PCM) via a Controller Area Network (CAN) message. Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control 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: U11C7 RAM indicates Lost Maximum Engine Torque Message.
Common causes: Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control 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 467

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 28, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U11C7 RAM Description

This diagnostic determines the availability of the maximum indicated engine torque signal sent by the Powertrain Control Module (PCM) via a Controller Area Network (CAN) message. The diagnostic determines the availability by checking the valid bit. When the signal is not available, the PCM sends a Signal Not Available (SNA) default value to the Transmission Control Module (TCM). If the TCM reads this value then the Diagnostic Trouble Code (DTC) U11C7 is set.

OBDII Code U11C7 RAM - Lost Maximum Engine Torque Message - AutoCodes.com — U11C7 RAM Code - Lost Maximum Engine Torque Message

What does this mean?

What are the Possible Causes of the DTC U11C7 RAM?

Faulty Transmission Control Module (TCM)
Transmission Control Module harness is open or shorted
Transmission Control Module circuit poor electrical connection

How to Fix the DTC U11C7 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 U11C7 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 U11C7 RAM Code

1. What are the common symptoms of OBDII code U11C7 RAM titled Lost Maximum Engine Torque Message?

- Common symptoms include reduced engine performance, hesitation during acceleration, and illuminated check engine light.

2. What can cause the OBDII code U11C7 RAM to trigger the Lost Maximum Engine Torque Message?

- This code is typically triggered by a communication error between the engine control module (ECM) and the transmission control module (TCM).

3. How can I diagnose the issue related to the U11C7 RAM code?

- Diagnosis involves using a professional OBDII scanner to retrieve the code, checking for any associated trouble codes, and inspecting the wiring and connectors between the ECM and TCM.

4. What are some possible repair tips for resolving the U11C7 RAM code issue?

- Repair tips may include checking and repairing any damaged wiring, ensuring proper connections between the ECM and TCM, and updating the software in both modules.

5. Is it safe to continue driving with the U11C7 RAM code triggered?

- It is not recommended to drive with the U11C7 RAM code triggered, as it can lead to further engine and transmission issues if left unresolved.

6. Can a DIY enthusiast fix the U11C7 RAM code issue at home?

- While basic checks like inspecting wiring and connectors can be done at home, resolving the U11C7 RAM code may require professional diagnostic equipment and software updates.

7. How much does it typically cost to repair the U11C7 RAM code issue at a mechanic or dealership?

- The cost of repairing the U11C7 RAM code can vary depending on the extent of the issue, but it may range from $100 to $500 or more, including parts and labor.

8. Are there any recalls or technical service bulletins related to the U11C7 RAM code?

- It's recommended to check with the manufacturer or authorized service centers for any recalls or technical service bulletins related to the U11C7 RAM code.

9. Is the U11C7 RAM code common in specific vehicle makes or models?

- The U11C7 RAM code can be found in various vehicle makes and models equipped with OBDII systems, particularly those with advanced engine and transmission control modules.

10. How can I prevent the U11C7 RAM code from recurring in the future?

- Regular maintenance, including checking and repairing any wiring issues, updating software as recommended by the manufacturer, and addressing any related trouble codes promptly, can help prevent the U11C7 RAM code from recurring.