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Avital 4105 w/xpresskit bypass on Chevy Cobalt


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djray110 
Member - Posts: 4
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Joined: August 20, 2015
Location: Illinois, United States
Posted: August 20, 2015 at 6:21 AM / IP Logged Link to Post Post Reply Quote djray110
I been doing a lot of research because this weekend i am going to install a Avital 4105 remote start with a xpresskit pkumux bypass module on a 2006 chevy cobalt Automatic, power locks,
i have the cobalt wiring diagram, and the diagram for the bypass module and remote start a few question is what is the satellite harness, 4 pin connector and what wires from the bypass module goes to the remote start as well
djray110 
Member - Posts: 4
Member spacespace
Joined: August 20, 2015
Location: Illinois, United States
Posted: August 20, 2015 at 6:30 AM / IP Logged Link to Post Post Reply Quote djray110
H1/1: (-)Factory alarm disarm - N/A
H1/2: (-)Factory rearm - N/A
H1/3: (+)Ignition out (to alarm) -
H1/4: (-)Activation Input - N/A
H1/5: (-)Ground when locked -
H1/6: (-)Horn Output - To horn wire under column
H1/7: (-)Trunk Release Output -
H1/8: Ground - To common ground
H1/9: (+/-) Light Flash -
4-pin satellite harness
1: (-)Status Output -
2: (-) Accessory Output -
3: (-) Starter Output -
4: (-) Ignition Output -
Heavy gauge relay wiring
1: (-) (+) (30A) High current 12V Input
2: (-) Output to second ignition/Accessory - N/A
3: (-) (+) (30A) High current 12V Input
4: (-) Output to Accessory Circuit
5: (-) Output to starter circuit
6: (-) Output to primary igniton circuit
Door lock harness
1: (-) Unlock output - 1.5k Ohm Resistor
2: N/A
3: (-) Lock output -
Remote start harness (H2)
H2/1: (-) Neutral safety switch input -
H2/2: Tachometer wire - None Pink wire on fuel injector
H2/3: (+) Brake switch shutdown - Brake wire at pedal
H2/4: (-) Hood pin switch -
H2/5 (-) 200ma 2nd status/rear defogger output - N/A
djray110 
Member - Posts: 4
Member spacespace
Joined: August 20, 2015
Location: Illinois, United States
Posted: August 20, 2015 at 6:43 AM / IP Logged Link to Post Post Reply Quote djray110
Avital 4105 w/xpresskit bypass on Chevy Cobalt -- posted image.
that is my bypass module diagram sorry for so many post
kreg357 
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Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: January 30, 2009
Location: Pennsylvania, United States
Posted: August 20, 2015 at 7:30 AM / IP Logged Link to Post Post Reply Quote kreg357

There is a really complete Astro Chart guide for your car in the downloads section.  Here is a link :

https://www.the12volt.com/installbay/file.asp?ID=717
Most all of the wires needed can be found at the BCM on the passenger side of the center floor console.

H1/1: (-)Factory alarm disarm -   N/A

H1/2: (-)Factory rearm - N/A
H1/3: (+)Ignition out (to alarm) - N/A
H1/4: (-)Activation Input -          N/A
H1/5: (-)Ground when locked - N/A
H1/6: (-)Horn Output - Tan At BCM J2 Connector pin 14
H1/7: (-)Trunk Release Output - Tan At BCM J2 Connector pin 10
H1/8: Ground -   To common ground
H1/9: (+/-) Light Flash - Set to (-)          BROWN / White At BCM J2 Connector pin 5

4-pin satellite harness

1: (-)Status Output -       Tp PKUMUX Blue/White
2: (-) Accessory Output -             N/A
3: (-) Starter Output -      N/A
4: (-) Ignition Output -     N/A

Heavy gauge relay wiring

1: (-) (+) (30A) High current 12V Input      RED / Black At BCM J3 Connector pin D1
2: (-) Output to second ignition/Accessory -           N/A 
3: (-) (+) (30A) High current 12V Input      RED / Black At BCM J3 Connector pin D1
4: (-) Output to Accessory Circuit   Small Brown At BCM J4 Gray Connector (Behind fuse box) pin C8
5: (-) Output to starter circuit        PKUMUX Violet
6: (-) Output to primary ignition circuit       Small Yellow At BCM J4 Gray Connector (Behind fuse box) pin D3 and
   to PKUMUX Pink

Door lock harness

1: (-) Unlock output -   inline 1.5k Ohm Resistor     White At BCM J1 Connector pin 6    * might need a relay
2: N/A
3: (-) Lock output -           White At BCM J1 Connector pin 7

Remote start harness (H2)

H2/1: (-) Neutral safety switch input - To chassis ground ( auto trans only )
H2/2: Tachometer wire -         BROWN / White (2) At Ignition Coil
H2/3: (+) Brake switch shutdown -       Lt.Blue At BCM J2 Connector pin 54
H2/4: (-) Hood pin switch -      to kit supplied hood pin switch
H2/5 (-) 200ma 2nd status/rear defogger output -        Lt.Blue At BCM J2 Connector Pin 68  ( Set 4103 to Pulse, Menu 2, Feature 8, Opt 3 )

PKUMUX

Blue/White to 4105 Blue (-) Status Output
Pink to 4105 thick Pink ( which also goes to Cobalt Yellow at BCM )
Violet to 4105 thick Violet
Light Green to Cobalt 5V Ref WHITE/ Black @ BCM J2 Pin 62
WHITE/ Black to Cobalt Data Input White  @ BCM J2 Pin 56
WHITE/ Red to Cobalt Data Output White @ BCM J2 Pin 56
Red to 4105 either thick Red
Black to 4105 Black H1/8

Soldering is fun!
djray110 
Member - Posts: 4
Member spacespace
Joined: August 20, 2015
Location: Illinois, United States
Posted: August 22, 2015 at 12:22 PM / IP Logged Link to Post Post Reply Quote djray110
Thanks Kreg357 after 6 hours i finally got it all wired up and working. Only issue is the chevy cobalt have day time running lights that automatically come on when the cars starts they come on when i start the car with the Key but when i remote start they do not always come on some time they do sometime they don't

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