Viper 5405 No start with key
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=141832
Printed Date: October 31, 2025 at 5:06 AM
Topic: Viper 5405 No start with key
Posted By: mjdavis1994
Subject: Viper 5405 No start with key
Date Posted: October 07, 2016 at 2:07 PM
So I have a problem that's racking my brain and I was hoping you all would be able to help. The 5305 has a two way remote, and I recently installed the remote start.
It was installed a couple days ago and everything is working, arming, disarming, remote start turns vehicle on, you can do pit stops and car stays running. However when you try to start the vehicle with just the key it wont start if the vipers 5 pin harness is connected. You can jump the violet and green wires and the vehicle will start with the key so I know it isn't the ignition switch or vehicle side of problem. My thoughts were the starter kill relay however that is built into the brain of this particular unit and with just the remote start harness connected the vehicle will start or by jumping the purple and green wires as stated above.
Some details on the vehicle and remote start..
2000 Pontiac Grand Am GT
V6 Coupe
IDataLink Bypass Module
(-) Input Brown - Ground
Orange - Data (J1850 OBDII pin on vehicle)
Pink - Ignition (+) input - Pink wire on remote start
Viper 5305V 2 Way Alarm and Remote Start.
Wires Connected::
10 Pin Remote Start Harness:
RED / Black - 12 Volts Constant
Pink/Black - No Connection
Pink/White - 12V in accessory, run, and during crank
Red - 12V Constant
Green - Key side of starter wire - gets 12V while cranking with key
Violet - Vehicle side of starter wire - -2.4 V while cranking with key
Orange - No Connection
RED / White - 12 Volts Constant
Pink - 12V with key in run position and during crank
5 Pin Main Harness
Black - Chassis Ground
Brown - (+) siren output
Red - (+) 12 Volts Constant
Orange (-) 500ma Ground When Armed Output (on chassis ground)
White - Parking Light Output
24 Pin Aux/Shutdown/Trigger Harness
Green - (-) door input - connected to dome light
Brown - (+) Brake Shutdown - connected to brake pedal (+)
Blue/White - activation input - NC
Violet/White - NC
BLACK/ White - (-) parking brake input - to selector switch connected to parking brake.
**************************
I say again, when you disconnect the 5 pin main harness from the viper the vehicle starts.
**************************
The vehicle is unlocked while trying to start.
The IDatalink Bypass has been programmed for this particular vehicle.
Does anybody have a clue what is going on here?
Replies:
Posted By: lurch228
Date Posted: October 07, 2016 at 3:18 PM
[QUOTE=mjdavis1994] So I have a problem that's racking my brain and I was hoping you all would be able to help. The 5305 has a two way remote, and I recently installed the remote start.
It was installed a couple days ago and everything is working, arming, disarming, remote start turns vehicle on, you can do pit stops and car stays running. However when you try to start the vehicle with just the key it wont start if the vipers 5 pin harness is connected. You can jump the violet and green wires and the vehicle will start with the key so I know it isn't the ignition switch or vehicle side of problem. My thoughts were the starter kill relay however that is built into the brain of this particular unit and with just the remote start harness connected the vehicle will start or by jumping the purple and green wires as stated above.
Some details on the vehicle and remote start..
2000 Pontiac Grand Am GT
V6 Coupe
IDataLink Bypass Module
(-) Input Brown - Ground Should be hooked to (-)status output of Alarm R/S. So bypass is only active when remote starting.
Orange - Data (J1850 OBDII pin on vehicle)
Pink - Ignition (+) input - Pink wire on remote start
Viper 5305V 2 Way Alarm and Remote Start.
Wires Connected::
10 Pin Remote Start Harness:
RED / Black - 12 Volts Constant
Pink/Black - No Connection
Pink/White - 12V in accessory, run, and during crank
Red - 12V Constant
Green - Key side of starter wire - gets 12V while cranking with key
Violet - Vehicle side of starter wire - -2.4 V while cranking with key
Orange - No Connection
RED / White - 12 Volts Constant
Pink - 12V with key in run position and during crank
5 Pin Main Harness
Black - Chassis Ground
Brown - (+) siren output
Red - (+) 12 Volts Constant
Orange (-) 500ma Ground When Armed Output (on chassis ground) By having this wire hooked to ground you are back feeding the starter kill internal relay causing it to engauge the starter kill.
For controlling other (-)triggered devices when armed Like window module for window roll up with arm, tilt sensor ect.
White - Parking Light Output
24 Pin Aux/Shutdown/Trigger Harness
Green - (-) door input - connected to dome light
Brown - (+) Brake Shutdown - connected to brake pedal (+)
Blue/White - activation input - NC
Violet/White - NC
BLACK/ White - (-) parking brake input - to selector switch connected to parking brake. For Manual Trans connect to parking brake for Auto Trans connect to chassis ground
**************************
I say again, when you disconnect the 5 pin main harness from the viper the vehicle starts.
**************************
The vehicle is unlocked while trying to start.
The IDatalink Bypass has been programmed for this particular vehicle.
Does anybody have a clue what is going on here?
[/QUOTE
Posted By: mjdavis1994
Date Posted: October 07, 2016 at 7:05 PM
Thank you for the reply. I just returned home after dinner I will fix the deficiencies and update afterward.
Posted By: lurch228
Date Posted: October 07, 2016 at 11:35 PM
No problem
Posted By: mjdavis1994
Date Posted: October 07, 2016 at 11:36 PM
Update::
Everything is working as expected with the exception of the locks locking when the alarm is armed. I think the problem lays with his vehicle though not the remote start because when you hit the interior lock no matter how many times you hit the lock button only the door you hit the trigger on locks. Thank you for the help greatly appreciated.
Posted By: lurch228
Date Posted: October 08, 2016 at 1:42 AM
Door locks sounds like a door boot wiring break most commonly in the drivers side as it gets used the most.
Posted By: howie ll
Date Posted: October 08, 2016 at 1:48 AM
Disconnect the orange wire from ground, it's activating the internal starter cut relay all the time.
-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: lurch228
Date Posted: October 08, 2016 at 2:23 AM
Is there a echo in here LOL! 
Posted By: howie ll
Date Posted: October 08, 2016 at 5:15 AM
 ------------- Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: lurch228
Date Posted: October 09, 2016 at 5:53 PM
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