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U1162 Chevrolet Code - Lost Communications With Liftgate/Endgate Control Module

Quick Answer

The U1162 code for Chevrolet vehicles indicates a communication error with the Liftgate/Endgate Control Module, which is responsible for controlling the operation of the liftgate or endgate in the vehicle. Common causes include Loose or corroded wiring connections, Damaged wiring harnesses, Malfunctioning liftgate control module. 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
U1162 Chevrolet indicates Lost Communications With Liftgate/Endgate Control Module.
Common causes
Common causes include Loose or corroded wiring connections, Damaged wiring harnesses, Malfunctioning liftgate control module.
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 09, 2024
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Code U1162 Chevrolet Description

The U1162 code for Chevrolet vehicles indicates a communication error with the Liftgate/Endgate Control Module, which is responsible for controlling the operation of the liftgate or endgate in the vehicle. This module communicates with other modules in the vehicle through the Controller Area Network (CAN) bus system. When the communication is lost or disrupted, it can lead to various issues with the liftgate or endgate operation.

OBDII Code U1162 Chevrolet - Lost Communications With Liftgate/Endgate Control Module
U1162 Chevrolet Code - Lost Communications With Liftgate/Endgate Control Module

Common Causes of U1162 Chevrolet

  1. Loose or corroded wiring connections
  2. Damaged wiring harnesses
  3. Malfunctioning liftgate control module
  4. Faulty CAN bus communication
  5. Water damage or exposure to the elements affecting the liftgate control module

Symptoms of U1162 Chevrolet

  1. Inoperable liftgate or endgate
  2. Liftgate or endgate stuck in a certain position
  3. Warning light on the dashboard indicating a liftgate/endgate issue
  4. Unusual noises or vibrations when operating the liftgate/endgate

How to Fix U1162 Chevrolet

  1. Perform a thorough inspection of the wiring connections and harnesses to check for any loose or damaged components.
  2. Test the liftgate control module for proper functionality and communication with other modules on the CAN bus system.
  3. Clear the diagnostic trouble codes and reset the system to see if the issue persists.
  4. Replace any faulty wiring connections, harnesses, or the liftgate control module if necessary.
  5. Test the liftgate or endgate operation to ensure proper functionality and communication with the control module.

Cost to Fix U1162 Chevrolet

The typical repair costs for addressing the U1162 code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the cost for parts and labor to resolve this issue can range from $200 to $500. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to consult with local auto repair shops for a more accurate estimate based on your specific circumstances.

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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 U1162 Chevrolet Code

1. What does the OBDII code U1162 for Chevrolet indicate?

The code U1162 means "Lost Communications With Liftgate/Endgate Control Module."

2. What are the common symptoms of U1162 code in a Chevrolet vehicle?

Common symptoms include the liftgate or endgate not responding to commands, failure of the liftgate or endgate to open or close, and warning lights on the dashboard.

3. What are the possible causes of the U1162 code in a Chevrolet?

The U1162 code can be triggered by issues such as a faulty liftgate/endgate control module, damaged wiring or connectors, blown fuses, or a malfunction in the communication network.

4. How can I diagnose the U1162 code in my Chevrolet?

Diagnosing the U1162 code typically involves using a professional OBDII scanner to retrieve the code, checking the liftgate/endgate control module for power and ground, inspecting the wiring and connectors for damage, and testing the communication network.

5. How can I repair the U1162 code in my Chevrolet?

Repairing the U1162 code may involve replacing the liftgate/endgate control module, repairing or replacing damaged wiring or connectors, checking and replacing blown fuses, and ensuring proper communication on the network.

6. Can I drive my Chevrolet with the U1162 code?

It is not recommended to drive your Chevrolet with the U1162 code present, as it can affect the functionality of the liftgate or endgate, potentially causing safety hazards or inconveniences.

7. How much does it cost to repair the U1162 code in a Chevrolet?

The cost of repairing the U1162 code can vary depending on the specific issue causing the code, the labor rates of the repair shop, and the cost of any necessary parts. It is advisable to get a diagnostic and repair estimate from a professional technician.

8. Are there any DIY tips for troubleshooting the U1162 code in a Chevrolet?

While basic checks like inspecting fuses and connectors can be done by DIY enthusiasts, diagnosing and repairing the U1162 code often requires advanced tools and expertise. It is recommended to seek help from a qualified mechanic.

9. Will resetting the U1162 code make it go away permanently?

Resetting the U1162 code may temporarily clear the warning light, but if the underlying issue causing the code is not fixed, it is likely to reappear. It is crucial to diagnose and repair the root cause of the problem.

10. Is the U1162 code common in Chevrolet vehicles?

The U1162 code related to lost communications with the liftgate/endgate control module is specific to Chevrolet vehicles and can occur in models equipped with this module.

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