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B1287 Cadillac Code - Amplifier Control Signal Circuit

- Code Popularity: 1,118 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B1287 Cadillac?

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
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How to Fix the DTC B1287 Cadillac?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1287 Cadillac code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code B1287 Cadillac Description

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.

OBDII Code B1287 Cadillac - Amplifier Control Signal Circuit - AutoCodes.com
B1287 Cadillac Code - Amplifier Control Signal Circuit

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Code B1287 Cadillac comments

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