AutoCodes – Buick – U1167 Buick

U1167 Buick Code - Lost Communications With Rear Seat Audio Controller

Quick Answer

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Faulty Rear Seat Audio Controller (RSA), Rear Seat Audio Controller harness is open or shorted, Rear Seat Audio Controller 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: U1167 Buick indicates Lost Communications With Rear Seat Audio Controller.
Common causes: Common causes include Faulty Rear Seat Audio Controller (RSA), Rear Seat Audio Controller harness is open or shorted, Rear Seat Audio Controller 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 495

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 24, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1167 Buick 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) U1167 is set.

OBDII Code U1167 Buick - Lost Communications With Rear Seat Audio Controller - AutoCodes.com — U1167 Buick Code - Lost Communications With Rear Seat Audio Controller

What does this mean?

What are the Possible Causes of the DTC U1167 Buick?

Faulty Rear Seat Audio Controller (RSA)
Rear Seat Audio Controller harness is open or shorted
Rear Seat Audio Controller circuit poor electrical connection

How to Fix the DTC U1167 Buick?

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 U1167 Buick 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 U1167 Buick Code

1. What are the common symptoms of OBDII code U1167 in a Buick related to lost communications with the rear seat audio controller?

- Common symptoms may include no sound from the rear seat audio system, unresponsive controls, and error messages on the audio display.

2. What are some possible causes of the U1167 code indicating a communication issue with the rear seat audio controller in a Buick?

- Possible causes include a faulty rear seat audio controller, damaged wiring or connectors, a blown fuse, or a malfunctioning audio system module.

3. How can I diagnose the U1167 code in my Buick when it points to lost communications with the rear seat audio controller?

- Diagnosis typically involves checking the wiring and connectors for damage, testing the rear seat audio controller for functionality, and verifying the power and ground connections.

4. Is it safe to continue driving my Buick with the U1167 code related to the rear seat audio controller communication problem?

- It is generally safe to drive, but it is recommended to address the issue promptly to ensure full functionality of the audio system and to prevent any potential electrical problems.

5. Can the U1167 code in a Buick be reset, or does it require immediate repair to resolve the communication issue with the rear seat audio controller?

- While the code can be cleared, it is advisable to address the underlying communication problem with the rear seat audio controller to prevent it from recurring.

6. Are there any DIY repair tips for fixing the U1167 code indicating lost communications with the rear seat audio controller in a Buick?

- DIY repair tips may include checking and cleaning the connectors, inspecting for visible wiring damage, and ensuring proper power supply to the audio system components.

7. Will fixing the U1167 code related to the rear seat audio controller communication problem require a visit to a Buick dealership or can it be done by an independent mechanic?

- Depending on the complexity of the issue, it can be resolved by an independent mechanic familiar with Buick vehicles or by a dealership service center with specialized diagnostic equipment.

8. How much can I expect to pay for repairing the U1167 code indicating lost communications with the rear seat audio controller in my Buick?

- Repair costs can vary based on the specific cause of the issue, but they may range from a few hundred to a thousand dollars, including parts and labor.

9. Are there any recalls or technical service bulletins (TSBs) related to the U1167 code in Buick vehicles for the rear seat audio controller communication problem?

- It's recommended to check with Buick dealerships or online resources for any recalls or TSBs related to the U1167 code to see if there are known issues or solutions provided by the manufacturer.

10. Can a malfunctioning rear seat audio controller causing the U1167 code affect other systems or components in my Buick?

- While the primary impact is on the rear seat audio system, a malfunctioning controller could potentially affect other connected systems or modules, so it's essential to address the issue promptly.