AutoCodes – Generic – U2176

U2176 Code - Lost Communication With Power Take-Off Control Module

Quick Answer

Devices connected to the 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: U2176 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.

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Code Popularity 1,161

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 Jun 15, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U2176 Description

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the devices. The devices 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 device as an availability indication of the transmitter device. Each message contains the identification number of the transmitter device. A loss of serial data communications Diagnostic Trouble Code (DTC) does not represent a failure of the devices that contain the stored code. The DTC will set when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U2176 - Lost Communication With Power Take-Off Control Module - AutoCodes.com — U2176 Code - Lost Communication With Power Take-Off Control Module

What does this mean?

What are the Possible Causes of the DTC U2176?

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 U2176?

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 U2176 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 U2176 code?

Need more information on how to fix the U2176 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U2176 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U2176 Buick — Lost Communication With Power Take-Off Control Module
U2176 Cadillac — Lost Communication With Power Take-Off Control Module
U2176 Chevrolet — Lost Communication With Power Take-Off Control Module
U2176 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.

Frequently Asked Questions about U2176 Code

1. What are the common symptoms of OBDII code U2176 (Lost Communication With Power Take-Off Control Module)?

- Common symptoms include the illumination of the Check Engine Light, difficulty shifting gears, and loss of power to the transmission or drivetrain.

2. What are the possible causes of OBDII code U2176?

- The code U2176 can be caused by issues such as a faulty power take-off control module, damaged wiring or connectors, a blown fuse, or a malfunctioning CAN bus communication system.

3. How can I diagnose the OBDII code U2176?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the code and perform a thorough inspection of the power take-off control module, associated wiring, and connectors for any visible damage.

4. Can I still drive my vehicle with the U2176 code?

- It is not recommended to drive the vehicle with the U2176 code present, as it may lead to further damage to the transmission or drivetrain components. It is advisable to address the issue promptly.

5. How can I repair OBDII code U2176?

- Repairing the U2176 code involves troubleshooting the power take-off control module, repairing or replacing damaged wiring or connectors, checking and replacing blown fuses, and ensuring proper communication on the CAN bus network.

6. Is it possible to reset the U2176 code without fixing the underlying issue?

- While clearing the code may temporarily turn off the Check Engine Light, the underlying issue causing the U2176 code will persist. It is crucial to address the root cause to prevent further complications.

7. Can a DIY enthusiast fix the U2176 code at home?

- Depending on your automotive knowledge and expertise, you may be able to address the U2176 code at home by inspecting wiring, connectors, and the power take-off control module. However, complex repairs may require professional assistance.

8. How much does it cost to repair OBDII code U2176?

- The cost of repairing the U2176 code can vary based on the extent of the damage, parts needing replacement, and labor costs. It is recommended to obtain quotes from local mechanics or repair shops for an accurate estimate.

9. Will the U2176 code cause permanent damage to my vehicle?

- Ignoring the U2176 code can potentially lead to permanent damage to the transmission or drivetrain components. It is essential to address the issue promptly to prevent costly repairs in the future.

10. How long does it typically take to repair the U2176 code?

- The time needed to repair the U2176 code can vary depending on the complexity of the issue, availability of parts, and the expertise of the mechanic. Simple fixes may take a few hours, while more extensive repairs could span multiple days.