Audio System Speaker Circuit Fault
Table of contents
B2965 MERCURY Possible Causes
- Faulty Audio System Speaker
- Audio System Speaker harness is open or shorted
- Audio System Speaker circuit poor electrical connection
- Faulty Audio Control Module (ACM)
How do I fix code B2965 MERCURY?
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.
Cost of diagnosing the B2965 MERCURY code
The cost of diagnosing the B2965 MERCURY 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)
B2965 MERCURY Description
The Audio Control Module (ACM) directs the audio signals to the speakers through separate positive and negative circuits for each speaker. The ACM provides internal circuit protection for shorts to ground, shorts to voltage, and shorts between any output circuits.
On vehicles equipped with a DVD entertainment system, the rear speaker output is sent from the ACM to the rear entertainment module (RETM). This allows the RETM to control the rear speakers during dual-play mode.
The Diagnostic Trouble Code (DTC) sets when an open, a short to ground, or a short to voltage is detected on speaker circuits. The ACM checks for faults once every 500ms during normal operation.