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Home >> Audi >> 2014 >> A4 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 829 (Information And Entertainment Systems - 4.2-Inch (107MM) Screen, Am/Fm/Cd/Sync) >> Diagnosis And Testing >> Information and Entertainment System >> Pinpoint Tests >> Pinpoint Test H : The LF Tweeter Speaker Is Inoperative >> Notes

Pinpoint Test H : The LF Tweeter Speaker Is Inoperative: Notes

WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Audio System/Navigation , for schematic and connector information.

Normal Operation and Fault Conditions 

Refer to ACM in Information and Entertainment System .

Root DTC Description Failure Types Fault Trigger Conditions
B1A01:01 Speaker #1: General Electrical Failure Set by the ACM when a failure is detected on the LF door or tweeter circuits.
B1A01:11 Speaker #1: Circuit Short to Ground Set by the ACM when a short to ground is detected on the LF door or tweeter speaker circuits. When DTC B1A01:11 is set, the speaker output is disabled.
B1A01:12 Speaker #1: Circuit Short to Battery Set by the ACM when a short to battery is detected on the LF door or tweeter speaker circuits. When DTC B1A01:12 is set, the speaker output is disabled.
B1A01:13 Speaker #1: Circuit Open Set by the ACM when an open is detected on the LF door or tweeter speaker circuits.

Possible Sources 

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