Turn radio on and go into the trunk , carefully remove the clips and move the black plastic inner trunk panel inwards , unplug the black plastic MPC from the antenna , go turn off the key and then return to the trunk nd re connect the plug ~ you'll be able to hear / feel the antenna's motor running if it's still any good .
If it's good , you *might* be able to polish then lubricate the antenna mast and then , using the same running back & forth , key on , key off method , get the entenna to retract as you give it a *slight* pressure .
Often once the mast has bound up and dragged , the motor's clutch breaks , so far I've not had much luck in fixing that , truth be told I just go buy another antenna complete @ P-A-P , clean , polish and lubricate the mast and it's good to go a few more years until I neglect to clean & polish the extended mast during routine service work .
-Nate
Rob wrote :
>
>
> How do you test to see if your antenna motor is shot?
> After returning home today, I noticed that my antenna won't go down. It
> doesn't make any sound, and won't push down.
> The fuse seems fine; I pulled it and put it back, and the trunk light is
> on, so there's power. Radio plays fine.
> I last replaced this Hirschmann 6 yrs ago.
> Thanks
>
> Rob
> '85 300D
> Garden Grove, CA
>
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