AutoCodes – RAM – U11CF RAM

U11CF RAM Code - Lost Vehicle Longitudinal Acceleration Message

Quick Answer

This diagnostic checks the availability of the vehicle longitudinal acceleration signal which is sent by the Electronic Stability Program (ESP) via a CAN message. Common causes include Faulty Occupant Restraint Controller Module (ORC), Faulty Anti-Lock Brake System (ABS) Module. 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: U11CF RAM indicates Lost Vehicle Longitudinal Acceleration Message.
Common causes: Common causes include Faulty Occupant Restraint Controller Module (ORC), Faulty Anti-Lock Brake System (ABS) Module.
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 550

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 U11CF RAM Description

This diagnostic checks the availability of the vehicle longitudinal acceleration signal which is sent by the Electronic Stability Program (ESP) via a CAN message. The diagnostic checks the availability by checking the received value is not equal to the Signal Not Available (SNA) default value. The Diagnostic Trouble Code (DTC) sets when the read value does not match the written value in any RAM location.

OBDII Code U11CF RAM - Lost Vehicle Longitudinal Acceleration Message - AutoCodes.com — U11CF RAM Code - Lost Vehicle Longitudinal Acceleration Message

What does this mean?

What are the Possible Causes of the DTC U11CF RAM?

Faulty Occupant Restraint Controller Module (ORC)
Faulty Anti-Lock Brake System (ABS) Module

How to Fix the DTC U11CF 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 U11CF 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 U11CF RAM Code

1. What are the common symptoms of OBDII code U11CF RAM (Lost Vehicle Longitudinal Acceleration Message)?

Symptoms may include the check engine light illuminating, decreased engine performance, and potential issues with the vehicle's acceleration and stability control systems.

2. What causes the OBDII code U11CF RAM to trigger?

This code typically triggers when there is a communication failure between the longitudinal acceleration sensor and the vehicle's control module, resulting in a lost or inaccurate acceleration message.

3. How can I diagnose the U11CF RAM code?

Diagnosing this code requires using a professional OBDII scanner to read and interpret the trouble codes stored in the vehicle's system. Additionally, checking the wiring and connections associated with the longitudinal acceleration sensor is crucial.

4. Can a DIYer repair the U11CF RAM code issue?

While some DIYers may attempt to repair this issue by checking and securing the sensor's wiring connections, it is recommended to consult a professional mechanic or dealership for a more accurate diagnosis and repair.

5. Is it safe to drive with the U11CF RAM code active?

It is not advisable to drive with the U11CF RAM code active, as it can impact the vehicle's stability control and acceleration systems, potentially compromising safety and performance.

6. How much does it cost to repair the U11CF RAM code?

The cost of repairing the U11CF RAM code can vary depending on the underlying issue causing the code to trigger. It is best to consult a mechanic for an accurate diagnosis and cost estimate.

7. Can resetting the trouble codes clear the U11CF RAM code?

Resetting the trouble codes may temporarily clear the U11CF RAM code, but it is essential to address the root cause of the issue to prevent the code from reoccurring.

8. What other codes may be related to the U11CF RAM code?

Codes related to the vehicle's stability control, longitudinal acceleration sensor, or communication systems may be associated with the U11CF RAM code. It is recommended to perform a comprehensive diagnostic scan to identify all relevant trouble codes.

9. How long does it take to repair the U11CF RAM code?

The repair time for the U11CF RAM code can vary depending on the complexity of the issue and the availability of parts. It is advisable to consult with a mechanic for a more accurate estimate of the repair timeline.

10. Can weather conditions affect the triggering of the U11CF RAM code?

Extreme weather conditions, such as heavy rain or snow, can potentially impact the functioning of the longitudinal acceleration sensor and trigger the U11CF RAM code. It is essential to ensure that the sensor and its connections are properly sealed and protected from environmental elements.