AutoCodesJeep – B1487 Jeep

B1487 Jeep Code - Channel 8 Audio Speaker Output Circuit Shorted Together

Quick Answer

The amplifier receives fused battery current from a fuse in the Power Distribution Center (PDC) at all times. 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
B1487 Jeep indicates Channel 8 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.
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Code Popularity 1,016
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 15, 2019
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Code B1487 Jeep Description

The amplifier receives fused battery current from a fuse in the Power Distribution Center (PDC) at all times. The internal circuitry of the amplifier switches the amplifier on based upon a CAN-I bus message that is received from the Radio Receiver Module (RRM) whenever the RRM is turned on. The amplifier receives the sound signal inputs from the left and right rear outputs of the RRM, and then sends the amplified speaker outputs for each of those channels to the speakers.
The amplifier receives information from the Body Control Module (BCM) and RRM, that communicates the correct channel setting for optimum speaker sound and output.
There are two amplifiers available, an 8 channel, rated at 322 watts (7 channels are used) and a 12 channel (11 channels are used), rated at 506 watts.
OBDII Code B1487 Jeep - Channel 8 Audio Speaker Output Circuit Shorted Together - AutoCodes.com
B1487 Jeep Code - Channel 8 Audio Speaker Output Circuit Shorted Together

What are the Possible Causes of the DTC B1487 Jeep?

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

How to Fix the DTC B1487 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 B1487 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 B1487 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 B1487 Jeep Code

1. What does OBDII code B1487 mean on a Jeep?

Code B1487 indicates that the Channel 8 Audio Speaker Output Circuit has a short, meaning the speaker wires are touching or grounded improperly.

2. What are the symptoms of code B1487 in a Jeep?

Common symptoms include distorted sound, no sound from one or more speakers, or audio system malfunctions.

3. What causes the B1487 code to appear?

Typical causes are damaged speaker wires, loose or corroded connections, faulty speakers, or an issue with the vehicle's amplifier.

4. Can I still drive my Jeep with the B1487 code active?

Yes, you can still drive the vehicle, but the audio system may not function correctly or produce sound.

5. How do I diagnose the B1487 code on a Jeep?

Start by inspecting the speaker wires and connectors for damage or corrosion, then test the speaker itself and check for shorts in the audio circuit.

6. Is the B1487 code a serious issue?

While it doesn’t affect drivability, it can impact your audio system’s functionality and may lead to further electrical problems if not resolved.

7. How much does it cost to fix code B1487 on a Jeep?

Repair costs vary but may range from $50 to $150 for basic wiring repairs. If replacement speakers or an amplifier are needed, costs can exceed $200.

8. Can I fix the B1487 code myself?

If you’re comfortable with basic electrical work, you can inspect and repair damaged wires or connectors. For complex audio system issues, seek professional help.

9. Could a faulty amplifier cause code B1487?

Yes, a malfunctioning amplifier can cause audio circuit shorts and trigger the B1487 code.

10. How do I prevent the B1487 code from recurring?

Ensure all speaker wires are properly insulated, avoid overloading the audio system, and regularly inspect connectors for damage or corrosion.

Discuss the causes and fixes for B1487 Jeep OBDII Code

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