AutoCodes – GMC – U0160 GMC

U0160 GMC Code - Lost Communication With Chime Alarm 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 Chime Alarm Control Module, Chime Alarm Control Module harness is open or shorted, Chime Alarm 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: U0160 GMC indicates Lost Communication With Chime Alarm Control Module.
Common causes: Common causes include Faulty Chime Alarm Control Module, Chime Alarm Control Module harness is open or shorted, Chime Alarm 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 1,119

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 02, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0160 GMC 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 Chime Alarm Control Module has not been received.

OBDII Code U0160 GMC - Lost Communication With Chime Alarm Control Module - AutoCodes.com — U0160 GMC Code - Lost Communication With Chime Alarm Control Module

What does this mean?

What are the Possible Causes of the DTC U0160 GMC?

Faulty Chime Alarm Control Module
Chime Alarm Control Module harness is open or shorted
Chime Alarm Control Module circuit poor electrical connection

How to Fix the DTC U0160 GMC?

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 U0160 GMC 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 U0160 GMC 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 U0160 GMC Code

1. What are the common symptoms of OBDII code U0160 in a GMC related to the lost communication with the Chime Alarm Control Module?

- Common symptoms include non-functional chime alarm system, warning lights on the dashboard, and issues with the vehicle's security system.

2. What are the possible causes of OBDII code U0160 in a GMC?

- The code U0160 can be triggered by issues such as a faulty Chime Alarm Control Module, damaged wiring harnesses, or poor electrical connections.

3. How can I diagnose the communication loss with the Chime Alarm Control Module in my GMC?

- To diagnose the issue, you can use an OBDII scanner to retrieve the specific trouble code and then inspect the wiring connections and the Chime Alarm Control Module for any visible damage.

4. Can a DIY enthusiast repair the lost communication with the Chime Alarm Control Module issue in a GMC?

- Depending on the cause, DIY repairs may be possible, such as checking and repairing wiring connections. However, complex issues with the module itself may require professional intervention.

5. Are there any temporary fixes for the U0160 code in a GMC?

- In some cases, disconnecting the car battery for a few minutes and then reconnecting it may reset the system and temporarily clear the code. However, this is not a permanent solution.

6. How important is it to address the U0160 code related to the Chime Alarm Control Module in a timely manner?

- It is crucial to address the U0160 code promptly to ensure the proper functioning of the vehicle's security and alarm systems, as well as to prevent potential safety issues.

7. Can a malfunctioning Chime Alarm Control Module cause other problems in a GMC?

- Yes, a malfunctioning Chime Alarm Control Module can potentially affect other vehicle systems, such as the door chime, keyless entry, and security features.

8. Is it safe to continue driving with the U0160 code present in a GMC?

- It is generally not recommended to drive with the U0160 code active, as it can indicate underlying issues with critical vehicle systems that may compromise safety and security.

9. How much does it typically cost to repair the lost communication with the Chime Alarm Control Module in a GMC?

- The cost of repairing the U0160 code can vary depending on the specific issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. Can regular maintenance help prevent the occurrence of the U0160 code in a GMC?

- While regular maintenance cannot guarantee the prevention of all issues, ensuring timely inspections and addressing any electrical problems promptly can help reduce the likelihood of encountering the U0160 code.