Test C: Poor Quality/Distorted Sound From One or More Speakers (Not All Speakers)

PINPOINT TEST C: POOR QUALITY/DISTORTED SOUND FROM ONE OR MORE SPEAKERS (NOT ALL SPEAKERS)

C1-C2:

C2-C3:

Normal Operation
When the key is placed in START, voltage is sent to the audio unit through circuit 689 (DB). When the audio unit receives this signal, it mutes the speaker signals. After the key is removed from START, the audio unit directs audio signals to the speakers through separate positive and negative circuits. The audio unit provides internal circuit protection for shorts to ground, shorts to B+ battery, or shorts between any output circuits.

Possible Causes
- Circuit 800 (GY/LB) open or short to ground
- Circuit 801 (TN/YE) open or short to ground
- Circuit 802 (OG/RD) open or short to ground
- Circuit 803 (BN/PK) open or short to ground
- Circuit 804 (OG/LG) open or short to ground
- Circuit 805 (WH/LG) open or short to ground
- Circuit 811 (DG/OG) open or short to ground
- Circuit 813 (LB/WH) open or short to ground
- Speaker
- Audio unit