Test B: Poor Reception

PINPOINT TEST B: POOR RECEPTION

B1-B7:

B8-B11:

Normal Operation
The audio unit antenna receives AM and FM radio signals. The radio signals are sent to the audio unit through the audio unit antenna lead-in cable.

The noise suppression equipment reduces interference transmitted through the speakers by the engine ignition and electrical systems. When installing any new audio unit suppression equipment components, make sure that a good contact is made at all connections. Remove any paint or dirt from between a component and its ground. Tighten all connectors and fasteners securely.

Possible Causes
- Antenna
- Antenna cable
- Noise suppression equipment
- Ignition system
- Charging system
- Radio ignition interference capacitor
- Audio unit