Pinpoint Test 2: Poor Reception

PINPOINT TEST 2: POOR RECEPTION

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. 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

CAUTION: For the CD6 audio unit, the audio unit must be placed in shipment mode before removal. See AUDIO UNIT SHIPMENT MODE. Failure to follow this instruction may result in damage to the audio unit.

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