AutoCodes – Cadillac – U1192 Cadillac

U1192 Cadillac Code - Lost Communications With Theft Deterrent Control Module

Quick Answer

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Faulty Theft Deterrent Control Module (VTD), Theft Deterrent Control Module harness is open or shorted, Theft Deterrent 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: U1192 Cadillac indicates Lost Communications With Theft Deterrent Control Module.
Common causes: Common causes include Faulty Theft Deterrent Control Module (VTD), Theft Deterrent Control Module harness is open or shorted, Theft Deterrent 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 3,218

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 U1192 Cadillac 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) U1192 is set.

OBDII Code U1192 Cadillac - Lost Communications With Theft Deterrent Control Module - AutoCodes.com — U1192 Cadillac Code - Lost Communications With Theft Deterrent Control Module

What does this mean?

What are the Possible Causes of the DTC U1192 Cadillac?

Faulty Theft Deterrent Control Module (VTD)
Theft Deterrent Control Module harness is open or shorted
Theft Deterrent Control Module circuit poor electrical connection

How to Fix the DTC U1192 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 U1192 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.

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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 U1192 Cadillac Code

1. What are the common symptoms of OBDII code U1192 (Lost Communications With Theft Deterrent Control Module) in a Cadillac?

- Common symptoms include issues with the vehicle's anti-theft system, difficulty starting the car, warning lights related to the theft deterrent system, and possible immobilization of the vehicle.

2. What are the possible causes of OBDII code U1192 in a Cadillac?

- The code U1192 can be triggered by issues such as a faulty theft deterrent control module, damaged wiring or connectors in the system, a drained battery, or a software glitch.

3. How can I diagnose the OBDII code U1192 in my Cadillac?

- Diagnosing the code typically involves using an OBDII scanner to read the codes, checking for other related trouble codes, inspecting the theft deterrent control module and its connections, and testing the battery voltage.

4. Can I still drive my Cadillac with the U1192 code present?

- It is not recommended to drive your Cadillac with the U1192 code present, as it could potentially lead to issues with the vehicle's anti-theft system and affect its overall performance.

5. How can I repair the U1192 code in my Cadillac?

- Repairing the U1192 code may involve resetting the system by disconnecting the battery, checking and repairing any damaged wiring or connectors, replacing the theft deterrent control module if necessary, and clearing the trouble codes.

6. Will resetting the U1192 code make it go away permanently?

- Resetting the code may temporarily clear it, but if the underlying issue causing the code is not addressed, it is likely to reappear. It's important to diagnose and repair the root cause of the problem.

7. Can a DIY enthusiast fix the U1192 code issue in a Cadillac?

- Depending on the DIYer's skill level and access to tools, some simpler tasks like checking connections or resetting the system may be doable. However, more complex repairs involving module replacement may require professional assistance.

8. Is the U1192 code specific to Cadillac vehicles only?

- The U1192 code related to lost communications with the theft deterrent control module is specific to Cadillac vehicles, as it pertains to the manufacturer's unique anti-theft system.

9. How much does it cost to repair the U1192 code in a Cadillac?

- Repair costs for the U1192 code can vary depending on the specific cause of the issue, the extent of repairs needed, and whether professional labor is required. It's best to get a diagnostic from a trusted mechanic for an accurate estimate.

10. Can the U1192 code in a Cadillac be prevented?

- While some causes of the U1192 code may be unavoidable, regular maintenance checks, ensuring proper battery health, and addressing any warning signs related to the theft deterrent system promptly can help prevent the issue from occurring.