AutoCodes – Generic – B147A

B147A Code - Channel 6 Audio Speaker Output Circuit Low

Quick Answer

The standard equipment speaker system includes four full-range speakers. Common causes include Faulty Audio Amplifier, Audio Amplifier harness is open or shorted, Audio Amplifier 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: B147A indicates Channel 6 Audio Speaker Output Circuit Low.
Common causes: Common causes include Faulty Audio Amplifier, Audio Amplifier harness is open or shorted, Audio Amplifier 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 1,156

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 12, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B147A Description

The standard equipment speaker system includes four full-range speakers. The two front speakers are mounted behind a removable bezel located on each outboard end of the lower instrument panel. With the premium speaker system, the standard front speakers are replace with an enclosure assembly that includes a 4 inch speaker and a 1 inch tweeter. The four rear speakers are mounted behind a grille located on each outboard end of the sport bar, above the rear seating area of the vehicle. This Diagnostic Trouble Code (DTC) sets if a Direct Current (DC) offset occurs on the output channel, the amplifier shall set a DTC after a maturity rate of four to six seconds.

OBDII Code B147A - Channel 6 Audio Speaker Output Circuit Low - AutoCodes.com — B147A Code - Channel 6 Audio Speaker Output Circuit Low

What does this mean?

What are the Possible Causes of the DTC B147A?

Faulty Audio Amplifier
Audio Amplifier harness is open or shorted
Audio Amplifier circuit poor electrical connection

How to Fix the DTC B147A?

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 B147A 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 B147A code?

Need more information on how to fix the B147A code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B147A code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B147A Chrysler — Channel 6 Audio Speaker Output Circuit Low
B147A Dodge — Channel 6 Audio Speaker Output Circuit Low
B147A Jeep — Channel 6 Audio Speaker Output Circuit Low
B147A RAM — Channel 6 Audio Speaker Output Circuit Low

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 B147A Code

1. What are common symptoms of OBDII code B147A (Channel 6 Audio Speaker Output Circuit Low)?

- Common symptoms include distorted sound from the affected speaker, low volume, or complete loss of audio output.

2. What are possible causes of OBDII code B147A (Channel 6 Audio Speaker Output Circuit Low)?

- Possible causes include damaged speaker wiring, a faulty speaker, a defective audio amplifier, or a problem with the audio control module.

3. How can I diagnose the issue related to OBDII code B147A (Channel 6 Audio Speaker Output Circuit Low)?

- You can diagnose the issue by inspecting the speaker wiring for damage, testing the speaker for functionality, checking the audio amplifier, and scanning the audio control module for faults.

4. Can OBDII code B147A (Channel 6 Audio Speaker Output Circuit Low) be fixed at home?

- Depending on the cause, some fixes like checking and repairing damaged wiring or replacing a faulty speaker can be done at home. More complex issues with the audio amplifier may require professional assistance.

5. Are there any quick repair tips for addressing OBDII code B147A (Channel 6 Audio Speaker Output Circuit Low)?

- Quick repair tips include checking the speaker connections, ensuring the speaker is securely mounted, and inspecting the wiring for any visible damage.

6. What role does the audio control module play in triggering OBDII code B147A (Channel 6 Audio Speaker Output Circuit Low)?

- The audio control module controls the audio output to the speakers and may trigger the B147A code if it detects a low circuit condition in the Channel 6 speaker output.

7. How important is it to address OBDII code B147A (Channel 6 Audio Speaker Output Circuit Low) promptly?

- It is important to address the code promptly to avoid further damage to the audio system and ensure optimal audio quality in the vehicle.

8. Can OBDII code B147A (Channel 6 Audio Speaker Output Circuit Low) cause other audio system components to malfunction?

- Yes, if left unresolved, the low circuit condition in the Channel 6 speaker output can potentially lead to issues with other audio system components or affect overall audio performance.

9. Is resetting the vehicle's audio system a recommended troubleshooting step for OBDII code B147A (Channel 6 Audio Speaker Output Circuit Low)?

- Resetting the audio system may help clear minor glitches but is not a guaranteed solution for addressing the underlying issue causing the B147A code.

10. How can a professional mechanic help in resolving OBDII code B147A (Channel 6 Audio Speaker Output Circuit Low)?

- A professional mechanic can conduct advanced diagnostics, pinpoint the exact cause of the issue, perform repairs or component replacements, and ensure the audio system is functioning correctly.