Audio System - Poor AM Reception
NO: 39-35DATE: 04/03/2003
MODEL/YEAR:
S80 MY 99 ->, S60 MY 01 ->
SUBJECT:
Poor AM Reception
CHASSIS:
REFERENCE:
Service Bulletin 39-0018 and 39-0025
DESCRIPTION:
Cases have been reported in which AM static will increase and maintain a higher level resulting in complaints of poor AM reception. The increase in AM static may be triggered by several reasons including: bumps in the road closing the doors. The AM static will stop by several reasons including:
Central Door Lock activation rear defrost activation touching the trim covering the antenna amplifier.
SERVICE:
It has been determine the increase in AM static is due to a loose connection between the antenna amplifier and antenna cable. To improve the connection (and AM reception) this Tech Net Note provides instructions to install a brass strip Part Number 30657370.
The brass strip must be bent as shown.
NOTE:
It is critical not to exceed the 8 mm (5/16") length. If this length is exceeded it will result is worse reception.
Install the brass strip into the antenna amplifier as shown.
Install antenna cable so that the locking clips are not on top of the brass strip. It may help to push the locking clips to help seat properly.
NOTE:
After the antenna cable has been installed pull the antenna cable to verity the locking clips are holding the antenna cable in the proper position. If the antenna cable releases easily the locking clips were not seated.
Picture of antenna amplifier after brass strip has been installed.
Warranty Information