AutoCodes – RAM – B146D RAM

B146D RAM Code - Channel 3 Audio Speaker Output Circuit Open

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: B146D RAM indicates Channel 3 Audio Speaker Output Circuit Open.
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 966

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 B146D 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 B146D RAM - Channel 3 Audio Speaker Output Circuit Open - AutoCodes.com — B146D RAM Code - Channel 3 Audio Speaker Output Circuit Open

What does this mean?

What are the Possible Causes of the DTC B146D RAM?

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

How to Fix the DTC B146D 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 B146D 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 B146D RAM Code

1. What are the common symptoms of OBDII code B146D RAM (Channel 3 Audio Speaker Output Circuit Open)?

The common symptoms include no sound coming from the affected speaker, distorted audio, or complete loss of audio in the vehicle.

2. What causes the OBDII code B146D RAM (Channel 3 Audio Speaker Output Circuit Open)?

This code is typically triggered by a fault in the wiring, connectors, or the speaker itself, leading to an open circuit in the audio speaker output.

3. How can I diagnose the issue related to OBDII code B146D RAM?

To diagnose the problem, you can perform a visual inspection of the wiring and connectors, test the speaker for continuity, and use a multimeter to check for voltage at the speaker output.

4. What are some repair tips for fixing OBDII code B146D RAM?

Repairing this issue may involve repairing or replacing the damaged wiring, connectors, or the faulty speaker. Ensuring proper connections and addressing any shorts in the circuit can also help resolve the problem.

5. Can OBDII code B146D RAM be cleared with a simple reset?

Clearing the code may temporarily remove the warning light, but it is crucial to address the underlying issue causing the fault to prevent the code from reoccurring.

6. Is it safe to continue driving with OBDII code B146D RAM present?

While the vehicle may still be operational with this code, it is recommended to address the audio speaker circuit issue promptly to prevent further damage and ensure proper audio functionality.

7. Will fixing OBDII code B146D RAM require professional assistance?

Depending on your expertise in automotive electrical systems, you may be able to address the issue yourself. However, seeking professional help, especially if you are unsure about electrical repairs, is advisable.

8. Can extreme weather conditions contribute to triggering OBDII code B146D RAM?

Extreme temperatures or moisture can potentially damage the wiring or connectors in the audio speaker circuit, leading to the open circuit fault indicated by this code.

9. Are there any preventive measures to avoid OBDII code B146D RAM in the future?

Regularly inspecting the audio system components, ensuring proper installation of aftermarket audio equipment, and avoiding water damage can help prevent issues that may trigger this fault code.

10. How long does it typically take to repair OBDII code B146D RAM?

The repair time can vary depending on the extent of the damage and your experience with automotive electrical systems. Simple fixes like reconnecting loose wires may take less time, while complex issues might require more extensive troubleshooting and repair.