Test B: Poor Quality/Distorted/No Sound from One or More Speakers (Not All Speakers) - Except Subwoofers

PINPOINT TEST B: POOR QUALITY/DISTORTED/NO SOUND FROM ONE OR MORE SPEAKERS (NOT ALL SPEAKERS) - EXCEPT SUBWOOFERS

B1:

B1-B3:

B3-B4:

Normal Operation
The audio unit directs the audio signals to the speakers through separate positive and negative circuits for each of the audio channels. The audio unit provides internal circuit protection for shorts to ground, shorts to voltage, or shorts between any output circuits.

DTC B2965 - sets when a short to ground is detected on any of the speaker circuits. For all audio units except single CD, DTC B2965 also sets when an open circuit or short to voltage is detected.

Possible Causes
- Circuit 1722 (LB/WH) open, short to ground or voltage
- Circuit 1723 (OG/LG) open, short to ground or voltage
- Circuit 1725 (TN/YE) open, short to ground or voltage
- Circuit 1726 (GY/LB) open, short to ground or voltage
- Circuit 1777 (DG/OG) open, short to ground or voltage
- Circuit 1778 (WH/LG) open, short to ground or voltage
- Circuit 1780 (BN/PK) open, short to ground or voltage
- Circuit 1781 (OG/RD) open, short to ground or voltage
- Speaker
- Audio unit