AutoCodes – Cadillac – B1447 Cadillac

B1447 Cadillac 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 Cadillac 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 1,293

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 Cadillac Description

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

What does this mean?

What are the Possible Causes of the DTC B1447 Cadillac?

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 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 B1447 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 B1447 Cadillac code?

Need more information on how to fix the B1447 Cadillac code? Get Access to Factory Service Manuals

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 Cadillac Code

1. What does OBDII code B1447 for Cadillac indicate?

- This code refers to a Backup Power Source issue in the vehicle's airbag system.

2. What are the common symptoms of B1447 Cadillac code?

- Common symptoms include the airbag warning light staying illuminated on the dashboard and potential non-deployment of airbags in a collision.

3. What are the possible causes of B1447 Backup Power Source code in a Cadillac?

- The main causes can be a faulty airbag control module, damaged wiring or connectors in the airbag system, or a depleted backup power supply.

4. How can I diagnose the B1447 code in my Cadillac?

- Diagnosing the B1447 code usually involves using a professional OBDII scanner to read the fault codes stored in the airbag system and inspecting the wiring and connectors for any visible damage.

5. Can I repair the B1447 Backup Power Source code in my Cadillac on my own?

- Repairing the B1447 code may require advanced knowledge and tools. It's recommended to consult a professional mechanic or dealership for proper diagnosis and repair.

6. Is it safe to drive with the B1447 code present in my Cadillac?

- It's not advisable to drive with the B1447 code active, as it indicates a potential issue with the airbag system, which is crucial for passenger safety in the event of a collision.

7. How much does it typically cost to repair the B1447 code in a Cadillac?

- Repair costs for the B1447 code can vary depending on the specific issue causing the code. It's best to get a diagnostic from a qualified technician to determine the exact cost.

8. Can resetting the OBDII system clear the B1447 code in a Cadillac?

- Resetting the OBDII system may clear the code temporarily, but if the underlying issue causing the B1447 code is not addressed, it is likely to reappear.

9. Are there any recalls related to the B1447 Backup Power Source code in Cadillac vehicles?

- It's recommended to check with a Cadillac dealership or the National Highway Traffic Safety Administration (NHTSA) website for any recalls related to the B1447 code in specific Cadillac models.

10. How can I prevent the B1447 Backup Power Source code from recurring in my Cadillac?

- Regular maintenance checks, timely repairs of any airbag system issues, and proper handling of the vehicle can help prevent the recurrence of the B1447 code in your Cadillac.