AutoCodes – Cadillac – U0117 Cadillac

U0117 Cadillac Code - Lost Communication With Power Take-Off Control Module

Quick Answer

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Power Take-Off Control Module, Power Take-Off Control Module harness is open or shorted, Power Take-Off 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
U0117 Cadillac indicates Lost Communication With Power Take-Off Control Module.
Common causes
Common causes include Faulty Power Take-Off Control Module, Power Take-Off Control Module harness is open or shorted, Power Take-Off 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 687
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 30, 2020
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Code U0117 Cadillac Description

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. The modules have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver module as an availability indication of the transmitter module. The supervision time-out period is 250 ms. Each message contains the identification number of the transmitter module. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Power Take-Off Control Module has not been received.
OBDII Code U0117 Cadillac - Lost Communication With Power Take-Off Control Module - AutoCodes.com
U0117 Cadillac Code - Lost Communication With Power Take-Off Control Module

What are the Possible Causes of the DTC U0117 Cadillac?

  • Faulty Power Take-Off Control Module
  • Power Take-Off Control Module harness is open or shorted
  • Power Take-Off Control Module circuit poor electrical connection

How to Fix the DTC U0117 Cadillac?

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 U0117 Cadillac 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.

Need more information about the U0117 Cadillac code?

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Need Help with the Code?

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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 U0117 Cadillac Code

1. What are the common symptoms of OBDII code U0117 in a Cadillac related to the Power Take-Off Control Module?

- Common symptoms include loss of communication with the Power Take-Off Control Module, poor vehicle performance, and potential illumination of the check engine light.

2. What are the possible causes of the U0117 code in a Cadillac indicating a lost communication with the Power Take-Off Control Module?

- Possible causes include damaged wiring or connectors, a faulty Power Take-Off Control Module, software issues, or a malfunctioning CAN bus communication system.

3. How can I diagnose the U0117 code related to the Power Take-Off Control Module in my Cadillac?

- Diagnosis involves using an OBDII scanner to retrieve the code, checking for any other associated codes, inspecting wiring and connectors for damage, testing the Power Take-Off Control Module, and verifying the CAN bus communication.

4. Can I continue driving my Cadillac with the U0117 code indicating a communication issue with the Power Take-Off Control Module?

- It is not recommended to drive your Cadillac with the U0117 code present, as it may lead to poor vehicle performance or potential safety hazards. It is advisable to address the issue promptly.

5. How can I repair the U0117 code in my Cadillac related to the Power Take-Off Control Module?

- Repair options include repairing or replacing damaged wiring or connectors, replacing the faulty Power Take-Off Control Module, updating software if necessary, and ensuring proper communication on the CAN bus system.

6. Is it possible to reset the U0117 code in a Cadillac without addressing the underlying issue with the Power Take-Off Control Module?

- While you can clear the code with an OBDII scanner, it is crucial to address the root cause of the communication problem with the Power Take-Off Control Module to prevent the code from reoccurring.

7. How do I prevent the U0117 code from appearing again in my Cadillac after repair?

- To prevent the U0117 code from reappearing, regularly inspect and maintain the wiring and connectors, ensure proper installation and functioning of the Power Take-Off Control Module, and address any CAN bus communication issues promptly.

8. Can a DIY enthusiast fix the U0117 code associated with the Power Take-Off Control Module in a Cadillac?

- While some aspects of diagnosing and repairing the U0117 code can be done by a skilled DIY enthusiast, it is recommended to consult a professional mechanic for accurate diagnosis and repair due to the complexity of the system.

9. What are the potential safety implications of ignoring the U0117 code related to the Power Take-Off Control Module in a Cadillac?

- Ignoring the U0117 code can lead to poor vehicle performance, potential safety hazards, and further damage to the Power Take-Off Control Module or related components, risking reliability and safety while driving.

10. How much does it typically cost to repair the U0117 code indicating lost communication with the Power Take-Off Control Module in a Cadillac?

- The cost of repair can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, labor costs, diagnostic fees, and potential software updates. It is advisable to obtain quotes from reputable repair shops.

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