AutoCodesJeep – B146C Jeep

B146C Jeep 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 Jeep 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,184
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 12, 2019
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Code B146C Jeep 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 Jeep - Channel 3 Audio Speaker Output Circuit High - AutoCodes.com
B146C Jeep Code - Channel 3 Audio Speaker Output Circuit High

What are the Possible Causes of the DTC B146C Jeep?

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

How to Fix the DTC B146C Jeep?

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 Jeep 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 Jeep code?

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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 B146C Jeep Code

What does the OBDII code B146C indicate in a Jeep?

The B146C code indicates a problem with the Channel 3 audio speaker output circuit, specifically that the circuit is registering a high output signal.

What are common symptoms of the B146C code?

Common symptoms may include no sound from the channel 3 speaker, distorted audio, or intermittent audio output from that channel.

What could cause the B146C code to trigger?

Causes may include a short circuit in the speaker wiring, a faulty speaker, a malfunctioning amplifier, or issues within the vehicle's audio control module.

How can I diagnose the B146C code?

Start by visually inspecting the speaker and wiring for damage, then use a multimeter to check for continuity and the presence of shorts in the circuit.

Is it safe to drive a Jeep with the B146C code?

While it's generally safe to drive, you may experience audio issues, and it’s advisable to address the code to prevent further electrical problems.

What repairs might be needed to fix the B146C code?

Repairs may involve replacing the faulty speaker, repairing any damaged wiring, or replacing the audio control module if it’s found to be defective.

Can I reset the B146C code after making repairs?

Yes, you can reset the code using an OBDII scanner after completing the necessary repairs to verify that the issue has been resolved.

Will the B146C code affect other vehicle functions?

Typically, the B146C code is isolated to the audio system and should not affect other vehicle functions, but a malfunctioning audio system can lead to other electronic issues.

How can I prevent the B146C code from recurring?

To prevent recurrence, ensure that all audio components are properly installed, avoid overloading the audio system, and perform regular inspections of wiring and connectors.

Discuss the causes and fixes for B146C Jeep OBDII Code

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