AutoCodes - OBDII Code List - B1155 FORD

B1155 FORD - Subwoofer 1 Short to Battery

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Table of contents

B1155 FORD Possible Causes

  • Faulty Audio Subwoofer
  • Audio Subwoofer harness is open or shorted
  • Audio Subwoofer circuit poor electrical connection
  • Faulty Audio Control Module (ACM)

How do I fix code B1155 FORD?

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's pins.
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Cost of diagnosing the B1155 FORD code

Labor: 1.0

The cost of diagnosing the B1155 FORD code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

B1155 FORD Description

The subwoofer amplifier receives voltage and ground. To enable the subwoofer amplifier, the Audio Control Module (ACM) sends voltage. The circuit acts as both an output (to enable the amplifier) and an input (to detect an amplifier overload condition). A variable resistor in the subwoofer amplifier modifies the voltage signal from the ACM. In the event of an overload, the ACM clips the audio output signal to the amplifier (heard as distortion), in order to prevent damage to the amplifier and speaker. An open in circuit will cause the subwoofer to produce no sound, because the enable signal will not reach the subwoofer amplifier. A short to ground or short to voltage can cause severe distortion to be heard in the subwoofer. The Diagnostic Trouble Code (DTC) sets when a short to voltage is detected on the circuit.
OBDII Code B1155 Ford - Subwoofer 1 Short to Battery - AutoCodes.com

More Information

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Repair Importance Level: 3
 
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Repair Difficulty Level: 3
 
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