AutoCodes – Generic – B146C

B146C Code - Channel 3 Audio Speaker Output Circuit High

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: B146C indicates Channel 3 Audio Speaker Output Circuit High.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,705

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B146C 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 B146C - Channel 3 Audio Speaker Output Circuit High - AutoCodes.com — B146C Code - Channel 3 Audio Speaker Output Circuit High

What does this mean?

What are the Possible Causes of the DTC B146C?

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

How to Fix the DTC B146C?

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 B146C 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 B146C code?

Need more information on how to fix the B146C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B146C code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B146C Chrysler — Channel 3 Audio Speaker Output Circuit High
B146C Dodge — Channel 3 Audio Speaker Output Circuit High
B146C Jeep — Channel 3 Audio Speaker Output Circuit High
B146C RAM — Channel 3 Audio Speaker Output Circuit High

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 B146C Code

1. What are the common symptoms of OBDII code B146C (Channel 3 Audio Speaker Output Circuit High)?

- The common symptoms include distorted or no sound coming from the affected audio speaker in the vehicle.

2. What are the possible causes of OBDII code B146C?

- The code B146C can be caused by a damaged audio speaker, wiring issues, or a malfunction in the audio system control module.

3. How can I diagnose the OBDII code B146C?

- Diagnosis involves checking the affected speaker for physical damage, inspecting the wiring for any visible issues, and using a scan tool to communicate with the audio system control module for further troubleshooting.

4. Is it safe to drive with the OBDII code B146C active?

- It is generally safe to drive with this code, but it can be annoying to have a malfunctioning speaker in your vehicle. It is recommended to address the issue at your earliest convenience.

5. Can I repair OBDII code B146C myself?

- If you have experience with automotive wiring and audio systems, you may be able to repair this issue yourself by replacing the affected speaker or fixing any wiring problems. Otherwise, it is recommended to seek professional help.

6. How much does it typically cost to repair OBDII code B146C?

- The cost of repair can vary depending on the extent of the damage and whether you choose to replace the speaker yourself or have a mechanic take care of it. It is advisable to get a few quotes from different repair shops.

7. Will resetting the OBDII code B146C make the issue go away?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the high circuit in the audio speaker output.

8. Can a faulty audio speaker cause other problems in the vehicle?

- A faulty audio speaker typically does not cause other major problems in the vehicle, but it can affect your listening experience and the overall functionality of the audio system.

9. What should I do if I suspect OBDII code B146C but don't notice any audio issues?

- If you suspect the code is present but do not notice any audio issues, it is still recommended to have the system checked by a professional to prevent any potential problems from worsening.

10. How can I prevent OBDII code B146C from occurring in the future?

- To prevent this code from occurring, it's essential to maintain your vehicle's audio system, avoid overloading the speakers, and address any audio issues promptly to prevent further damage to the system.