AutoCodes – Buick – B1447 Buick

B1447 Buick Code - Backup Power Source

Quick Answer

The Back-up Battery (BUB) provides voltage to the Communication Interface Module (CIM), to be able to successfully place a call in the event of a main battery disconnect during a collision event. Common causes include Faulty Communication Interface Module (CIM), Communication Interface Module (CIM) harness is open or shorted, Communication Interface Module (CIM) 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: B1447 Buick indicates Backup Power Source.
Common causes: Common causes include Faulty Communication Interface Module (CIM), Communication Interface Module (CIM) harness is open or shorted, Communication Interface Module (CIM) 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 1,970

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 10, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1447 Buick Description

OBDII Code B1447 Buick - Backup Power Source - AutoCodes.com — B1447 Buick Code - Backup Power Source

What does this mean?

What are the Possible Causes of the DTC B1447 Buick?

Faulty Communication Interface Module (CIM)
Communication Interface Module (CIM) harness is open or shorted
Communication Interface Module (CIM) circuit poor electrical connection

How to Fix the DTC B1447 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 B1447 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.

Need more information about the B1447 Buick code?

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Need Help with the 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 B1447 Buick Code

1. What does OBDII code B1447 for Buick indicate?

The B1447 code in a Buick refers to a Backup Power Source issue.

2. What are the common symptoms of a B1447 Buick code?

Common symptoms of a B1447 code may include electrical malfunctions in the vehicle, such as power windows not working properly or issues with the radio.

3. What are the possible causes of a B1447 Buick code?

The B1447 code in a Buick can be caused by a faulty backup power source module, damaged wiring, or a blown fuse related to the backup power system.

4. How can I diagnose a B1447 Buick code?

Diagnosing a B1447 code typically involves using an OBDII scanner to read the code, conducting visual inspections of the backup power system components, and testing the voltage and continuity of the wiring.

5. How serious is a B1447 Buick code?

While a B1447 code may not directly impact the drivability of the vehicle, it can cause inconvenience by affecting various electrical functions within the car.

6. Can I still drive my Buick with a B1447 code?

It is generally safe to drive your Buick with a B1447 code, but it is recommended to address the issue promptly to avoid any potential electrical problems in the future.

7. How do I repair a B1447 Buick code?

Repairing a B1447 code may involve replacing the backup power source module, repairing damaged wiring, or replacing blown fuses associated with the backup power system.

8. Can I reset a B1447 Buick code without fixing the underlying issue?

Resetting the B1447 code without addressing the root cause is not recommended, as the issue may persist and lead to further electrical problems in the vehicle.

9. Are there any DIY tips for fixing a B1447 Buick code?

DIY tips for addressing a B1447 code include checking and replacing any blown fuses, inspecting wiring for damage, and ensuring all connections to the backup power source module are secure.

10. How much does it cost to repair a B1447 Buick code?

The cost of repairing a B1447 code in a Buick can vary depending on the extent of the issue and the specific components that need to be replaced. It is recommended to consult with a mechanic for an accurate estimate.