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Pinpoint Test C: Continuous Seek/Scan In Am/Fm

WARNING: This page is about a different car, the 2004 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
  1. C1 CHECK OPERATION OF THE SEEK/SCAN FUNCTIONS 
    • Key in ON position.
    • Operate the SEEK/SCAN functions with the audio unit in both AM and FM tuner modes.
    • Do the SEEK/SCAN functions search continuously? 
    1. Yes  : GO to C2.
    2. No  : The system is OK.
  2. C2 CHECK ANTENNA FOR DAMAGE 
    • Key in OFF position.
    • Disconnect: Antenna Lead-In.
    • Measure the resistance between the antenna cable lead-in terminal, audio unit side and the antenna lead-in cable, antenna side.
    • Is the resistance less than 8 ohms? 
    1. Yes  : GO to C3.
    2. No  : INSTALL a new antenna lead-in cable. REFER to ANTENNA . TEST the system for normal operation.
  3. C3 SUBSTITUTE ANTENNA 
    • Key in START position.
    • Substitute a known good antenna. Ground the antenna base to an unpainted metal surface on the vehicle.
    • Check the operation of the audio unit.
    • Does the audio unit operate correctly? 
    1. Yes  : INSTALL a new antenna. REFER to ANTENNA . TEST the system for normal operation.
    2. No  : RECONNECT the original antenna. REMOVE the audio unit and SEND it to an authorized repair facility. TEST the system for normal operation.
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