Test B: Poor Reception
PINPOINT TEST B: POOR RECEPTIONNormal 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.
DTC B2103 TUNER (Antenna Not Connected) - sets when the signal strength is less than a pre-determined value during the "antenna connected test" portion of the audio unit self-test. This DTC may not set, even if there is an open in the antenna coaxial cable; however, if it does set, the antenna circuit can be isolated for diagnosis.
This pinpoint test is intended to diagnose the following:
- Antenna
- Antenna cable
- Noise suppression equipment
- Ignition system
- Charging system
- Radio ignition interference capacitor
- Audio unit
B1:
B2-B8:
B9-B11:
