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Rev. 122017
Lexus / Toyota Amp PRO
Retention of SOS
(Safety Connect / Lexus Enform)
Technical Bulletin
Overview:
Safety Connect (SOS) is a subscription based service provided for select Lexus / Toyota models. Verify
the vehicle is equipped with Safety Connect / Lexus Enform (there will be an SOS button in the overhead
console) and that it is an active account, and that retention of SOS is a concern prior to proceeding.
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through the factory SOS telematics module. This telematics module is what creates the audio for the SOS
system (Voice Prompts, etc). There is an analog mute wire that runs from the SOS module to the factory
amp, and when the SOS is triggered by the user, the SOS module sends a ground signal on this wire to
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APPS
CAR
AUDIO
^
SEEK
TRACK SETUP
PWR VOL
TUNE SCROLL
I
I
^
Safety
Connect
Module
Amp Inputs Safety Connect Inputs
Rear Left Outputs
Front Left
Speakers
Front Right
Speakers
Rear Right
S k
Rear Left
S k
Front Right Outputs to Safety Connect
Front Left Outputs
Rear Right Outputs
Front Right Outputs to Speakers
SOS
Safety Connect
Button in Overhead Console
SOS Mute Trigger
Factory Amplifier
Example of Factory JBL system with SOS