Engine-Codes - Generic - B1287

B1287 Code - Amplifier Control Signal Circuit

- Code Popularity: 16,541 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
ChatAC AutoCodes.com AI Chat

What are the Possible Causes of the DTC B1287?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Amplifier
  • Amplifier harness is open or shorted
  • Amplifier circuit poor electrical connection
  • Faulty Radio Unit

Code Tech Notes

DTC B1287 01 Amplifier Control Signal Circuit Short to Battery
DTC B1287 02 Amplifier Control Signal Circuit Short to Ground
DTC B1287 04 Amplifier Control Signal Circuit Open

⚠ Does your Car have Safety Recalls? → Check here

How to Fix the DTC B1287?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Search for B1287 Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the B1287 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the B1287 Code Mean?

The radio provides a remote amplifier mute output circuit to control overall muting of the remote amplifier. The amplifier receives Pulse Width Modulated (PWM) signals on the control circuit at varying duty cycle percentages for controlling muted and unmuted functions of the amplifier. Circuitry internal to the radio monitors the remote amplifier mute circuit for faults and sets the appropriate Diagnostic Trouble Code (DTC) when faults are detected.

B1287 Code - Amplifier Control Signal Circuit

Need more Information on the Code?

Need more information on how to fix the B1287 code? Get Access to Factory Service Manuals

Code B1287 Information for Specific Makes

Need Help with the Code?

Get the B1287 code diagnosed by a professional: Find a repair shop in your area