Engine-CodesGeneric – U0117

U0117 Code - Lost Communication With PTO Control Module

Quick Answer

The U0117 diagnostic trouble code (DTC) indicates that there has been a communication failure with the Power Take-Off (PTO) Control Module. Common causes include Wiring issues or loose connections in the communication network, Faulty PTO Control Module, Damaged communication bus. 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
U0117 indicates Lost Communication With PTO Control Module.
Common causes
Common causes include Wiring issues or loose connections in the communication network, Faulty PTO Control Module, Damaged communication bus.
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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code U0117 Description

The U0117 diagnostic trouble code (DTC) indicates that there has been a communication failure with the Power Take-Off (PTO) Control Module. The PTO Control Module is responsible for controlling the engagement and disengagement of the PTO system, which is commonly used in trucks and other commercial vehicles to power auxiliary equipment such as hydraulic pumps, generators, or winches.

OBDII Code U0117 - Lost Communication With PTO Control Module
U0117 Code - Lost Communication With PTO Control Module

Common Causes of U0117

  1. Wiring issues or loose connections in the communication network
  2. Faulty PTO Control Module
  3. Damaged communication bus
  4. Software glitches in the ECU
  5. Water or corrosion damage to the electrical components

Symptoms of U0117

  1. Inability to engage or disengage the PTO system
  2. Loss of power to auxiliary equipment
  3. Limp mode activation
  4. Dashboard warning lights related to communication failure

How to Fix U0117

  1. Perform a thorough inspection of the wiring and connections in the communication network to check for any damage or loose connections.
  2. Test the PTO Control Module for functionality and replace it if found to be faulty.
  3. Check the communication bus for any signs of damage or corrosion and repair as needed.
  4. Update the software in the ECU to the latest version to address any software glitches that may be causing the communication failure.
  5. Clear the DTC and perform a test drive to ensure that the communication with the PTO Control Module has been restored.

Cost to Fix U0117

The cost of repairing a U0117 code can vary depending on the specific cause of the communication failure and the labor rates in your area. In general, you can expect to pay between $200 and $500 for parts and labor. However, it's important to note that prices can vary significantly, so it's best to obtain a quote from a reputable auto repair shop in your area. Keep in mind that diagnostic time and labor rates can also impact the final cost of the repair.

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Code U0117 Information for Specific Makes

  • U0117 Buick — Lost Communication With Power Take-Off Control Module
  • U0117 Cadillac — Lost Communication With Power Take-Off Control Module
  • U0117 Chevrolet — Lost Communication With Power Take-Off Control Module
  • U0117 GMC — Lost Communication With Power Take-Off Control Module
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.

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