Beetle L4-1.9L DSL Turbo (ALH) (1998)
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Press and hold the mix button or switch radio OFF then back ON.
Navigation units
No internal diagnosis functions. Continue to antenna lead diagnosis.
Section 3 - Antenna Lead Diagnosis
After initial radio diagnosis using internal service functions, use the following procedures:
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Locate antenna lead/s from radio at system end-point, i.e. diversity box or antenna mast base.
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Check for proper connection. (follow steps for your type of system).
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For all systems, locate cable end-point at either diversity box or antenna mast base.
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Disconnect cable from either diversity box or antenna mast base.
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Carefully ground center wire in cable to chassis.
If reception returns:
Cable and radio are ok.
If reception does not return:
Problem is located further forward in the system.
For problems forward of the antenna system:
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Continue with Section 3a.
For problems at antenna system:
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Skip to Section 3b.
For problems at antenna systems:
Tip:
All checks should be done outdoors away from buildings.
Section 3a - Problems forward of antenna system
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First verify connection at Radio (check for bent or crushed connections and proper fit).
If all connections appear ok:
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Ground antenna lead at radio or attach external antenna mast to radio unit (check for reception).
If reception returns:
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Problem is located between radio and antenna.
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Check connections near center console.
If connections are OK:
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Check resistance of cable from end to end.
If More than .4 ohms:
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Replace cable.
If reception does not return:
