Do OBD1 Computer Equipped Cars Require a DB3?

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self_tawt_tech

Member - Posts: 10

Joined: September 15, 2020

Location: California, United States

Posted: October 21, 2020 at 2:37 AM / IP Logged

I have a Viper 5706v + VSP450 installed in an 1981 Chevy Monte Carlo (OBD1 computer equipped). I want to swap out the VSP450 for VSM550 Smart Start module. I called an online retailer and they said VSM550 requires pairing with DB3 module. Per my understanding, DB3 is for late model OBD2 equipped cars. Can someone clarify? Thanks.

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silvercivicsir

Copper - Posts: 402

Joined: November 21, 2003

Posted: October 21, 2020 at 10:46 AM / IP Logged

no need for the DB3, the smartstart can be hard wired into the 5x06. but it will be only start,stop,lock alarm input,trunk and unlock. no data features like fuel level, which require a obd2 car and a dball3

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self_tawt_tech

Member - Posts: 10

Joined: September 15, 2020

Location: California, United States

Posted: October 21, 2020 at 8:51 PM / IP Logged

Thanks silvercivicsir! Main reason for choosing DSM550 is for the global access, GPS capabilities (for theft recovery purposes) and 4G speed. Given the old and simple nature of the Monte Carlo, not too worried about losing out on the fancy info, lol!

Thanks again!

e.b.

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self_tawt_tech

Member - Posts: 10

Joined: September 15, 2020

Location: California, United States

Posted: October 24, 2020 at 12:22 PM / IP Logged

@silvercivicsir - "it will be only start,stop,lock alarm input,trunk and unlock. no data features"

Just to confirm, the GPS function would still work, right?

e.b.

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geepherder

Platinum - Posts: 3,668

This member consistently provides reliable information

Joined: October 27, 2003

Posted: October 24, 2020 at 1:18 PM / IP Logged

Yes, GPS is not dependent on OBD2.

My ex once told me I have a perfect face for radio.

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self_tawt_tech

Member - Posts: 10

Joined: September 15, 2020

Location: California, United States

Posted: October 24, 2020 at 2:44 PM / IP Logged

As I suspected. Thanks @geepherder !!

e.b.

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