AutoCodes – Chevrolet – U1176 Chevrolet

U1176 Chevrolet Code - Loss Of Remote Function Actuator Communications

Quick Answer

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Faulty Remote Function Actuator (RFA), Remote Function Actuator harness is open or shorted, Remote Function Actuator 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: U1176 Chevrolet indicates Loss Of Remote Function Actuator Communications.
Common causes: Common causes include Faulty Remote Function Actuator (RFA), Remote Function Actuator harness is open or shorted, Remote Function Actuator 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 1,227

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 Apr 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1176 Chevrolet Description

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for the state of health monitoring/node alive messages. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. Once an identification number is learned by a module, it will monitor for that module node alive message. Each module on the class 2 serial data circuit is required to send a Node Alive message every 2 seconds. When no message is detected from a learned identification number for 5 seconds, a Diagnostic Trouble Code (DTC) U1176 is set.

OBDII Code U1176 Chevrolet - Loss Of Remote Function Actuator Communications - AutoCodes.com — U1176 Chevrolet Code - Loss Of Remote Function Actuator Communications

What does this mean?

What are the Possible Causes of the DTC U1176 Chevrolet?

Faulty Remote Function Actuator (RFA)
Remote Function Actuator harness is open or shorted
Remote Function Actuator circuit poor electrical connection

How to Fix the DTC U1176 Chevrolet?

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 U1176 Chevrolet 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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Need more information on how to fix the U1176 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1176 Chevrolet code diagnosed by a professional: Find a repair shop in your area

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 U1176 Chevrolet Code

1. What are the common symptoms of OBDII code U1176 in a Chevrolet related to loss of remote function actuator communications?

When this code is triggered, you may experience issues such as the remote key fob not working, difficulty locking or unlocking the doors remotely, or problems with other remote-controlled functions in the vehicle.

2. What are some possible causes of the U1176 code in a Chevrolet?

Potential causes of this code may include a faulty remote key fob, issues with the remote control receiver module, wiring or communication network problems, or a malfunctioning actuator control module.

3. How can I diagnose the U1176 code in a Chevrolet related to loss of remote function actuator communications?

Diagnosing this code typically involves checking the remote key fob for proper functioning, inspecting the wiring and connections related to the remote control system, and using a diagnostic scanner to identify any communication errors between modules.

4. Can I still drive my Chevrolet with the U1176 code present?

In most cases, the U1176 code does not affect the drivability of the vehicle, but it may cause inconvenience due to the loss of remote-controlled functions. It is still recommended to address the issue promptly to ensure proper operation of the remote system.

5. How can I repair the U1176 code in a Chevrolet?

Repairing this code may involve replacing a faulty remote key fob, repairing or replacing damaged wiring or connectors, resetting or reprogramming the remote control system, or replacing the remote control receiver module or actuator control module as needed.

6. Is it possible to reset the U1176 code in a Chevrolet without repair?

While clearing the diagnostic trouble codes using an OBDII scanner can temporarily reset the code, it is important to address the root cause of the issue to prevent the code from reoccurring.

7. Are there any DIY tips for troubleshooting the U1176 code in a Chevrolet?

DIY troubleshooting tips may include checking the battery of the remote key fob, inspecting for any visible wiring issues, ensuring the vehicle's battery is in good condition, and attempting to reprogram the remote control system following the manufacturer's instructions.

8. Can weather conditions affect the U1176 code in a Chevrolet?

Extreme weather conditions, such as exposure to moisture or temperature fluctuations, can potentially impact the functionality of the remote control system components and contribute to the triggering of the U1176 code.

9. How long does it typically take to repair the U1176 code in a Chevrolet?

The repair time for the U1176 code can vary depending on the specific cause of the issue and the complexity of the repair needed. It is advisable to consult a professional technician for a more accurate estimate of repair time.

10. Is the U1176 code specific to Chevrolet vehicles, or can it occur in other makes and models?

While the U1176 code is specific to Chevrolet vehicles, similar codes related to loss of remote function actuator communications may be present in other vehicle makes and models, each with its unique diagnostic and repair procedures.