02 GMC Sierra, Viper 791XV

Good day all,

I am installing a Viper 791XV starter/alarm into my 02 Sierra using the Directed Electronics bypass model 556LW.

I'm looking for the wiring color codes or schematic to help me with this install and . This is the first time I've done an alarm/starter install with a bypass, if someone could elaborate on how to do that it would be much appareciated.

Also, any other tips in terms of locations of the compontents etc?

Thanks in advance.

https://www.the12volt.com/installbay/forum_posts.asp?tid=24621

The search button at the top right has A LOT of answers.

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As for the bypass, in the box it will give you all the needed directions,give it power, and status input or whatever it asks for, I have to look at things before I can say,"yeah, do this!"

Good Luck

12volts	red	+	ignition harness
Starter	yellow	+	ignition harness
Second Starter
Ignition	pink	+	ignition harness
Second Ignition	white	+	ignition harness
Notes: To avoid the check engine light from coming on and possible damage to the automatic transmission, the second ignition in this vehicle MUST be powered when adding a remote start system.
Third Ignition
Accessory	orange	+	ignition harness
Second Accessory
Keysense
Power Lock	lt. blue	+	brown plug at BCM
Notes: The BCM is located behind the drivers side of the dash. The plugs on the BCM face towards the rear of the vehicle. The parking lights are in pin A5 and the headlights are in pin A11.
Power Unlock	white	+	brown plug at BCM
Notes: The BCM is located behind the drivers side of the dash. The plugs on the BCM face towards the rear of the vehicle. The parking lights are in pin A5 and the headlights are in pin A11.
Lock Motor	gray		driver kick panel
Unlock Motor	tan		driver kick panel
Parking Lights+	brown	+	lt. blue plug at BCM
Notes: The BCM is located behind the drivers side of the dash. The plugs on the BCM face towards the rear of the vehicle. The parking lights are in pin A5 and the headlights are in pin A11.
Parking Lights-	white	-	lt. blue plug at BCM
Notes: The BCM is located behind the drivers side of the dash. The plugs on the BCM face towards the rear of the vehicle. The parking lights are in pin A5 and the headlights are in pin A11.
Hazards
Turn Signal(L)
Turn Signal(R)
Reverse Light
Door Trigger		-	BCM
Notes: Use tan for the drivers door located in pin B4 of the purple plug, and for the passenger door it will be a orange in pin B2 in the purple plug or dk.blue/white in pin B11 of the lt.blue plug, must diode isolate these wires. The BCM is located behind the drivers side of the dash. The plugs on the BCM face towards the rear of the vehicle. The parking lights are in pin A5 and the headlights are in pin A11.
Dome Supervision
Trunk/Hatch Pin
Hood Pin
Trunk/Hatch Release
Power Sliding Door
Factory Alarm Arm
Factory Alarm Disarm	lt. green	-	driver kick panel
Notes: Also found in the purple plug of the BCM.
Disarm No Unlock
Tachometer	white	ac	ECM
Notes: ECM is located near the battery, down low, between the fender and the fan under the black plastic cover. On the 4.3L, the tach wire is at pin 20 in the connector labeled red. On the 4.8L, 5.3L, and 6.0L, the tach wire is located at pin 10 in the red connector. Diesel tach wire is white at the cluster.
Wait to start	dk. blue	-	instrument cluster
Notes: See DirectFax document 1090.
Brake Wire	white	+	brake pedal switch
Parking Brake
Horn Trigger	black	-	brown plug at BCM
Notes: The BCM is located behind the drivers side of the dash. The plugs on the BCM face towards the rear of the vehicle. The parking lights are in pin A5 and the headlights are in pin A11.
Memory Seat 1
Memory Seat 2
Memory Seat 3

Interface Module:	Category: Immobilizer Bypass	Required: Yes	Type: Passlock II
Part #: 556LW
Alternate Part1 #: 555LW
Alternate Part2 #: DesignTech 20402
Alternate Part3 #: DesignTech 29402
Notes:
Interface Module:	Category: Door Lock Interface	Required: No	Type: N/A
Part #: N/A
Notes:
Interface Module:	Category: Combo Interface	Required: Yes	Type: Data Bus
Part #: 457GW
Notes: Can use the 457GW to bypass the Passlock II, but it will not control the door locks on this model year.

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RTFM

you will find it very easy if you use the 457gw.you won't have to cut the passlock wire to interface,the module will learn it.also the 457gw will control arm/lock,disarm/unlock,door trigger,& passlock too. just follow the instruction that comes with the 457gw module and you will save yourself a lot of time.good luck.