B2385 Audio Navigation Mute Input Check Failure

OBD2 Code: B2385

Description: Audio navigation mute input check failure indicates a problem with the audio system’s ability to mute or unmute based on navigation commands.

Definition: The OBD2 code B2385 is related to the vehicle’s audio system, specifically indicating an issue where the system fails to properly process mute commands from the navigation unit. This could be due to wiring issues, faulty connections, or a malfunctioning component within the audio or navigation systems.

B2385 – Audio Navigation Mute Input Check Failure
Typical severity: Medium

Common Causes

b2385 – Audio Navigation Mute Input Check Failure

Common causes:

• Defective audio/navigation mute input circuit
• Faulty audio/navigation mute input sensor
• Short circuit in the audio/navigation mute input wiring
• Loose or disconnected connection in the audio/navigation mute input system

Common Misdiagnosis

html

OBD2 Code: B2385

Description: Audio Navigation Mute Input Check Failure

Common Misdiagnosis: Faulty audio system components or wiring issues are often misdiagnosed as a problem with the navigation mute input, leading to unnecessary replacement of parts.

Common Diagnostic Steps

OBD2 Code: B2385
Description: Audio Navigation Mute Input Check Failure
Common Diagnostic Steps:

• Verify the fault code using an OBD2 scanner.
• Inspect the wiring and connectors related to the audio navigation system for any signs of damage or corrosion.
• Check the mute input signal from the navigation unit to ensure it is functioning correctly.
• Test the functionality of the audio system to confirm if it mutes as expected when navigation commands are given.
• Examine any recent changes or installations that might have affected the audio/navigation system connections.
• If necessary, consult a professional technician for further diagnosis and repair. Consider reprogramming or updating software if applicable.