Radio – circuit operation

RADIO – CIRCUIT OPERATION

SYSTEM DIAGNOSIS

1. If Radio (Z111) does not operate at all, do Test A. 2. If Radio scans past all frequencies when in seek mode and hiss is present over most stations, do Test B. 3. If VF display does not dim when headlamps or park lamps are turned on, do Test C. 4. If one or more speakers do not operate, do Test D. 5. If the Subwoofer (K146) does not operate, do Test E. 6. If all right rear door speakers do not operate, do Test F. 7. If all left rear door speakers do not operate, do Test G. 8. If all left front door speakers do not operate, do Test H. 9. If all right front door speakers do not operate, do Test I. 10. If none of the steering wheel switches to the radio operate, do Test J.