AutoCodes – RAM – B146C RAM

B146C RAM 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 RAM 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.

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Code Popularity 693

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 15, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B146C RAM 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 RAM - Channel 3 Audio Speaker Output Circuit High - AutoCodes.com — B146C RAM Code - Channel 3 Audio Speaker Output Circuit High

What does this mean?

What are the Possible Causes of the DTC B146C RAM?

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

How to Fix the DTC B146C RAM?

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 RAM 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 B146C RAM Code

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

- The common symptoms include distorted audio output from the speaker, no sound coming from the affected speaker, or intermittent speaker operation.

2. What are the possible causes of code B146C RAM Channel 3 Audio Speaker Output Circuit High?

- The code may be triggered by a faulty speaker, damaged speaker wiring, a malfunctioning amplifier, or a problem with the audio system control module.

3. How can I diagnose the issue related to OBDII code B146C RAM?

- You can start by checking the speaker connections, inspecting the speaker for physical damage, testing the speaker with a known working source, and using a multimeter to check for continuity in the wiring.

4. Is it safe to continue driving with OBDII code B146C RAM active?

- While the code is related to the audio system and may not impact the vehicle's performance, it is recommended to address the issue promptly to prevent further damage to the audio components.

5. Can I reset OBDII code B146C RAM Channel 3 Audio Speaker Output Circuit High with a simple reset tool?

- Resetting the code may temporarily turn off the warning light, but it will not fix the underlying issue causing the code. It's important to diagnose and repair the problem to prevent the code from reappearing.

6. How can I repair OBDII code B146C RAM Channel 3 Audio Speaker Output Circuit High?

- Depending on the root cause, the repair may involve replacing the faulty speaker, repairing damaged wiring, troubleshooting the amplifier, or reprogramming the audio system control module.

7. Are there any DIY tips for fixing OBDII code B146C RAM?

- DIY enthusiasts can start by checking and cleaning the speaker connections, inspecting the wiring for wear or damage, and testing the speaker with a different audio source to isolate the issue.

8. Can extreme temperatures or moisture affect OBDII code B146C RAM Channel 3 Audio Speaker Output Circuit High?

- Yes, extreme temperatures or moisture can potentially damage the speaker or wiring, leading to the triggering of the code. It's important to protect the audio components from such conditions.

9. Will OBDII code B146C RAM Channel 3 Audio Speaker Output Circuit High cause any damage to other vehicle systems?

- The code is specific to the audio system and is unlikely to cause damage to other vehicle systems. However, it is best to address the issue promptly to maintain the proper functioning of the audio system.

10. Should I consult a professional mechanic for OBDII code B146C RAM Channel 3 Audio Speaker Output Circuit High?

- If you are unable to diagnose or repair the issue on your own, it is recommended to consult a professional mechanic or audio system technician who has the expertise and tools to address the problem effectively.