AutoCodes – Chrysler – B1478 Chrysler

B1478 Chrysler Code - Channel 5 Audio Speaker Output Circuit Shorted Together

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: B1478 Chrysler indicates Channel 5 Audio Speaker Output Circuit Shorted Together.
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 1,004

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 B1478 Chrysler 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 B1478 Chrysler - Channel 5 Audio Speaker Output Circuit Shorted Together - AutoCodes.com — B1478 Chrysler Code - Channel 5 Audio Speaker Output Circuit Shorted Together

What does this mean?

What are the Possible Causes of the DTC B1478 Chrysler?

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

How to Fix the DTC B1478 Chrysler?

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 B1478 Chrysler 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 B1478 Chrysler code?

Need more information on how to fix the B1478 Chrysler code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1478 Chrysler code diagnosed by a professional: Find a repair shop in your area

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 B1478 Chrysler Code

What are the common symptoms of OBDII code B1478 Chrysler?

Common symptoms include no sound coming from the affected audio speaker, distorted sound, or a constant buzzing noise.

What are the possible causes of the Channel 5 Audio Speaker Output Circuit Shorted Together code?

Possible causes include a short circuit in the wiring harness leading to the affected speaker, a faulty audio amplifier, or a malfunctioning speaker itself.

How can I diagnose the issue related to OBDII code B1478?

To diagnose the issue, you can start by checking the wiring harness for any visible damage, testing the continuity of the speaker circuit, and inspecting the speaker for any physical defects.

What are some repair tips for addressing the Channel 5 Audio Speaker Output Circuit Shorted Together code?

Repair tips include repairing or replacing any damaged wiring in the speaker circuit, testing and replacing the speaker if necessary, and checking the audio amplifier for proper functioning.

Can OBDII code B1478 Chrysler be cleared/reset without addressing the underlying issue?

While you can clear the code using an OBDII scanner, it is essential to address the root cause of the problem to prevent the code from reappearing.

Is it safe to continue driving with OBDII code B1478 present?

It is generally safe to drive with this code, but you may experience audio issues or lack of sound from the affected speaker until the problem is resolved.

How critical is it to fix OBDII code B1478 Chrysler promptly?

It is recommended to address this code promptly to restore proper audio functionality in your vehicle and prevent any potential damage to the audio system components.

Can weather or environmental factors contribute to triggering the Channel 5 Audio Speaker Output Circuit Shorted Together code?

Extreme weather conditions or exposure to moisture can potentially contribute to short circuits in the speaker circuit, leading to the B1478 code.

What are the typical costs associated with repairing OBDII code B1478 Chrysler?

The repair costs can vary depending on the extent of the damage, but they typically involve the cost of replacing wiring, speakers, or audio amplifier components. It is advisable to consult a professional for an accurate estimate.