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Radio/Stereo Noise Filter: All Technical Service Bulletins
Radio - AM Reception Noise
911 (996)
3/99
9005
Binder - 8/9, A/C, Electrics
Date: 3-25-99
Suppressor kit for AM Reception Noise
Vehicle Type:
911 Carrera (996)
Model Year:
As of 1999 (X)
Concern:
Radio interference/ticking noises on AM band.
Information:
As of October 20, 1998 production and the VINs listed below, the 911 Carrera (996) is fitted with an interference suppressor (in the speedometer "A"
signal to the instrument cluster) to minimize the presence of audible noise with the radio on AM band. This noise is usually noticed as a ticking that
increases with road speed, only when AM band is selected, and is caused by the speedometer "A" signal from the ABS system.
Suppressor installed in production from VINs:
WPOAA2 99 3 XS 62 4226 Coupe
WP0CA2 99 3 XS 65 2715 Cabriolet
On vehicles produced prior to the above listed VINs, a suppressor kit can be retrofitted for AM band ticking noise complaints. The retrofit consists of
installing an "in-line" suppressor in the speed input signal to the instrument cluster.
Parts Info.:
Part Number
Description
000 043 204 30
Suppressor kit. Includes: wire with suppressor (choke),
wire-end ferrule, heat shrink tubing.
Tools Required:
Insulation stripping pliers
Crimping pliers
Small screwdriver
Hot-air gun
Insulation tape
Work Procedure:
Installation of suppressor kit.
1.
Disconnect battery and cover battery terminal.
2.
Remove the combination instrument cluster. Refer to 911 Carrera (996) Technical Manual, section 90 25 19.
3.
Locate the blue instrument cluster connector, and unwrap approximately 60 mm of the outer insulation, starting at the plug connector.
This is a source reference. Confirm exact model applicability in the original material.