AutoCodes – Cadillac – U0160 Cadillac

U0160 Cadillac 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 Cadillac 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 759

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code U0160 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 Chime Alarm Control Module has not been received.

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

What does this mean?

What are the Possible Causes of the DTC U0160 Cadillac?

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 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 U0160 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 U0160 Cadillac code?

Need more information on how to fix the U0160 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U0160 Cadillac 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 U0160 Cadillac Code

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

- Common symptoms include loss of chime alarm functionality, no audible warnings for various vehicle alerts, and potential issues with the alarm system.

2. What could cause the U0160 code indicating a lost communication with the Chime Alarm Control Module in a Cadillac?

- Possible causes may include a malfunctioning chime alarm control module, wiring or connection issues, software glitches, or a faulty vehicle communication network.

3. How can I diagnose the source of the U0160 code in my Cadillac related to the Chime Alarm Control Module?

- Diagnosing the issue may involve checking the wiring connections to the chime alarm control module, inspecting for any visible damage, and using a diagnostic scanner to analyze the communication network.

4. Are there any simple troubleshooting steps I can take to address the U0160 code in my Cadillac?

- Some basic troubleshooting steps include checking the fuse related to the chime alarm system, ensuring all connections are secure, and resetting the vehicle's computer system.

5. Can the U0160 code related to the Chime Alarm Control Module in a Cadillac be repaired without professional help?

- Depending on the cause, some DIY enthusiasts may be able to fix the issue by addressing loose connections, replacing a fuse, or resetting the vehicle's computer system. However, for complex issues, professional help may be necessary.

6. Is it safe to continue driving my Cadillac with the U0160 code indicating a lost communication with the Chime Alarm Control Module?

- While the U0160 code may not directly affect the drivability of the vehicle, it is essential to address the issue promptly to ensure the proper functioning of the alarm system and other related features.

7. How much does it typically cost to repair the U0160 code related to the Chime Alarm Control Module in a Cadillac?

- Repair costs can vary depending on the underlying cause of the issue. Simple fixes like reconnecting loose wires or replacing a fuse may be inexpensive, while more complex repairs involving module replacement can be pricier.

8. Are there any recalls or technical service bulletins related to the U0160 code in Cadillac vehicles?

- It's recommended to check with a Cadillac dealership or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any recalls or technical service bulletins related to the U0160 code and the Chime Alarm Control Module.

9. Can a disconnected or faulty Chime Alarm Control Module cause other issues in a Cadillac besides triggering the U0160 code?

- Yes, a malfunctioning Chime Alarm Control Module can potentially affect other vehicle systems that rely on its communication or signals, leading to additional warning lights, alerts, or functionality problems.

10. How long does it typically take to repair the U0160 code indicating lost communication with the Chime Alarm Control Module in a Cadillac?

- The repair time can vary based on the complexity of the issue. Simple fixes may take less than an hour, while more involved repairs that require module replacement or extensive troubleshooting could take several hours or more.