S80 2.9 L6-2.9L VIN 94 B6294S (2000)
Antenna Amplifier: All Technical Service Bulletins
Audio System - Poor AM Band Reception
S80
1999-
Section
3
Group
39
No.
0018
Year
04
Month
02
Diagnostics for radio reception on the AM waveband
Background
Before carrying out diagnostics and fault-tracing according to this Service Bulletin, see Tech Net Note 39-35 dated 4-3-2003.
This Service Bulletin describes how to carry out diagnostics, fault-trace and to remedy poor AM radio reception.
Important!
Read the following information before carrying out diagnostics.
Affected Vehicle
Model
Factory
Chassis No.
S80
1
000570-
Material
Description
Quantity
P/N
Antenna cable
1
9438707
Tape
0,5m
9128331
Tie strap
2
983750
Special tool
Description
Reference to Tool Bulletin
P/N
Terminal removal tool, White From Terminal repair kit
951 2639
9512946 or 9512647 (STB 95)
Radio equipment AM radio diagnostics, reception
Design and Function
1
AM reception is received via the integrated antenna above the rear windshield heating loops.
The antenna is connected to an antenna amplifier positioned on the left-hand C-post.
The FM waveband uses a diversity system consisting of two antennas. One of the diversity system antennas is integrated in the rear windshield heating
loops, the other is in the rear bumper.
Only cars with factory-installed radios have an antenna amplifier for the diversity system. After market accessory radios may require installation of an
after market accessory antenna amplifier for the diversity system for interference free FM reception.
Weak AM reception and/or reception of more than one station at a time
2
