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U1117 RAM Code - Lost Communication With Right Rear Tire Pressure Trigger Module

Quick Answer

The U1117 RAM code indicates that the vehicle's onboard computer system has lost communication with the right rear tire pressure trigger module. Common causes include Faulty right rear tire pressure trigger module, Wiring or connection issues between the module and the vehicle's computer system, Malfunctioning vehicle computer system. 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
U1117 RAM indicates Lost Communication With Right Rear Tire Pressure Trigger Module.
Common causes
Common causes include Faulty right rear tire pressure trigger module, Wiring or connection issues between the module and the vehicle's computer system, Malfunctioning vehicle computer system.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code U1117 RAM Description

The U1117 RAM code indicates that the vehicle's onboard computer system has lost communication with the right rear tire pressure trigger module. This module is responsible for monitoring the tire pressure in the right rear tire and transmitting this data to the vehicle's computer system. When communication is lost, it can lead to inaccurate tire pressure readings, potentially affecting the vehicle's performance and safety.

OBDII Code U1117 RAM - Lost Communication With Right Rear Tire Pressure Trigger Module
U1117 RAM Code - Lost Communication With Right Rear Tire Pressure Trigger Module

Common Causes of U1117 RAM

  1. Faulty right rear tire pressure trigger module
  2. Wiring or connection issues between the module and the vehicle's computer system
  3. Malfunctioning vehicle computer system
  4. Corrosion or damage to the module or wiring
  5. Electrical interference or signal disruption

Symptoms of U1117 RAM

  1. Tire pressure warning light illuminated on the dashboard
  2. Inaccurate tire pressure readings displayed on the instrument cluster
  3. Decreased fuel efficiency
  4. Uneven tire wear
  5. Handling or stability issues while driving

How to Fix U1117 RAM

  1. Diagnose the issue by using a diagnostic scanner to retrieve the specific fault codes and identify the root cause of the communication loss.
  2. Inspect the wiring and connections between the right rear tire pressure trigger module and the vehicle's computer system for any damage or corrosion. Repair or replace any faulty wiring.
  3. Test the right rear tire pressure trigger module to determine if it is functioning correctly. Replace the module if necessary.
  4. Clear the fault codes from the vehicle's computer system and reset the tire pressure monitoring system.
  5. Perform a test drive to ensure that the communication between the module and the vehicle's computer system has been restored and that the tire pressure readings are accurate.

Cost to Fix U1117 RAM

The cost of repairing the U1117 RAM code can vary depending on the specific cause of the communication loss and the extent of the repairs needed. On average, the cost of parts for replacing a tire pressure trigger module can range from $100 to $300, while labor costs can range from $80 to $150 per hour. Overall, the total repair cost for this issue could range from $200 to $500, including parts and labor. It is advisable to consult with a professional mechanic to get an accurate estimate based on the specific vehicle make and model, as well as any additional diagnostic or repair needs.

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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 U1117 RAM Code

1. What are the common symptoms of OBDII code U1117?

- Common symptoms of code U1117 include issues with the right rear tire pressure monitoring system, such as inaccurate tire pressure readings or a malfunctioning tire pressure display.

2. What can cause the OBDII code U1117 to appear?

- The U1117 code is typically triggered when there is a communication error between the vehicle's onboard computer system and the right rear tire pressure trigger module.

3. How can I diagnose the cause of the U1117 code?

- Diagnosing the U1117 code usually involves checking the wiring and connections between the right rear tire pressure trigger module and the vehicle's computer system. It's also important to inspect the module itself for any signs of damage or malfunction.

4. What are some repair tips for fixing the U1117 code?

- Repairing the U1117 code may involve repairing or replacing damaged wiring, connectors, or the right rear tire pressure trigger module itself. It's important to follow the manufacturer's diagnostic and repair procedures to ensure proper resolution.

5. Can I drive my vehicle with the U1117 code present?

- It is generally safe to drive the vehicle with the U1117 code, but it's important to address the issue promptly to ensure the proper functioning of the tire pressure monitoring system.

6. How much does it typically cost to repair the U1117 code?

- The cost of repairing the U1117 code can vary depending on the extent of the issue and the specific repairs needed. It's recommended to consult with a professional mechanic for an accurate diagnosis and cost estimate.

7. Can I reset the U1117 code without fixing the underlying issue?

- While you can clear the U1117 code with an OBDII scanner, it's important to address the underlying communication problem between the vehicle's computer system and the right rear tire pressure trigger module to prevent the code from reappearing.

8. Will the U1117 code cause my vehicle to fail an emissions test?

- The U1117 code is typically related to the tire pressure monitoring system and should not cause your vehicle to fail an emissions test. However, it's still important to address the issue for proper vehicle operation.

9. How common is the U1117 code in vehicles?

- The U1117 code is not as common as some other OBDII codes, but it can still occur in vehicles equipped with tire pressure monitoring systems that experience communication issues with the right rear tire pressure trigger module.

10. Can extreme temperatures or weather conditions trigger the U1117 code?

- Extreme temperatures or weather conditions can potentially affect the performance of the tire pressure monitoring system and lead to communication issues that trigger the U1117 code.

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