99 Tahoe, APS 996a

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=28104
Printed Date: June 17, 2024 at 5:20 PM

Topic: 99 Tahoe, APS 996a

Posted By: gearheads78
Subject: 99 Tahoe, APS 996a
Date Posted: March 10, 2004 at 12:18 AM

Do to cost reasons and so I have control over the install I am about to install a alarm / remote start in my wifes truck. Its a 99 Tahoe. I have been practicing solder joints so I think all will be OK in that dept. The system is a Audio Vox APS996a. I will be adding DEI tilt / motion sensor, DEI battery backup siren and a piezo siren under the dash.

Is there anything I am going to run into that I need to be aware of on this install?

If all goes well on this one I will be trying my hand at my 04 Avalanche.

Replies:

Posted By: Javelin3o4
Date Posted: March 10, 2004 at 1:35 AM

do you have a passlock II system in your truck? (GM's security built into the key) Cause if you do you will need a bypass module like DEI's 555T or 555L, also if your truck has the metal crash gaurd behind the lower dash panel that bolts in make sure when you put your wires back in they dont get pinched by that metal bracket because we had a tahoe at my shop come in that kept blowing ignition fuses because 1 wire got pinched and was shorting out.

Posted By: Velocity Motors
Date Posted: March 10, 2004 at 9:02 AM

The Chevy's have an OEM disarm wire for the alarm that needs to see ground before remote start. The Tahoe is a very easy truck to work on ( lots of room under the dash ) and the tach is very easy to find as well in the engine bay. For the 2004 Avalanche I suggest getting a door lock interface/Passlock II bypass module for ease of installation. PM me for more information on this installation.

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: gearheads78
Date Posted: March 10, 2004 at 9:17 AM

Well I did order the DEI 555L for both trucks for the Passkey. I also ordered the DEI databus module for the 04 Avalanche so I should be good there.

I was more wondering anything I might run in to since it will be a first time. I have learned a lot hear just reading lots of past history posts.

Posted By: gearheads78
Date Posted: April 01, 2004 at 12:11 PM

I am doing the install as we speak on a 99 Tahoe. Its a APS996a with DEI 555L.

-in the instuctions is says to pull main 12 volt power of two wires but only if total load does not exede 30A. There is a red and a RED / white 12v at the colunm. Are these ok to use or do I have to bring power from the battery?

-is this truck passlock I or passlock II

-anything else I might run in to during this install? I do build ans work on cars all the time but this is my first dive this deep in an electrical system.

thanks

Posted By: gearheads78
Date Posted: April 01, 2004 at 12:13 PM

I just figured it out as paslock II but if I can get the other answers that would be great.

Posted By: jfk51502003
Date Posted: April 01, 2004 at 12:18 PM

DIRECTWIRE™ WIRING INFORMATION - CHEVROLET / TAHOE / 1999 / Remote Start
[PRINT THIS PAGE]

12volts	red	+	ignition harness
Starter	yellow or purple	+	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		either door boot
Notes: The 4 door versions are positive trigger, and the 2 door versions are 5-wire.
Power Unlock	white		either door boot
Notes: The 4 door versions are positive trigger, and the 2 door versions are 5-wire.
Lock Motor	gray		drivers door boot
Unlock Motor	tan		drivers door boot
Parking Lights+	brown		headlight switch
Notes: Also found low in the drivers kick panel.
Parking Lights-
Hazards
Turn Signal(L)
Turn Signal(R)
Reverse Light
Door Trigger	purple	-	headlight switch
Dome Supervision	white	-	underdash light
Trunk/Hatch Pin	tied with doors
Hood Pin
Trunk/Hatch Release	black or blk/wht		low in the drivers kick
Notes: Positive trigger on models with rear lift window, and 5 wire on models with cargo doors.
Power Sliding Door
Factory Alarm Arm
Factory Alarm Disarm
Disarm No Unlock
Tachometer	white		ECM
Notes: ECM is located on drivers side inner fender. Tach wire found in a black plug marked white. Diesel wait to start wire is dk. blue (-) located at the instrument cluster.
Wait to start
Brake Wire	white	+	at brake pedal switch
Parking Brake
Horn Trigger	black	-	at column
Memory Seat 1
Memory Seat 2
Memory Seat 3

Immobilizer Bypass Module:	Required: Yes	Type: Passlock 2	Part #: 555L or 555T
Notes: N/A

This wiring information is being provided free of charge on an "as is" basis, without any representation or warranty. It is your responsibility to verify any circuit before interfacing with it using a digital multimeter.
Directed electronics, Inc. assumes no responsibility with regards to the accuracy or currency of this information. Proper installation in every case is and remains the responsibility of the installer. DEI assumes no liability or responsibility resulting from improper installation, even in reliance upon this information.

Posted By: gearheads78
Date Posted: April 04, 2004 at 4:52 PM

OK I am on the downhill side of the install. I only get to work a few hours at a time so its taking a while.

One last question, on the diagram above it says lock motor and locks are different. So what wires do I use? The lt blue/ white or the grey and tan?

The alarm is limited to 300mA on its RED / green outputs and I don't want to burn it up the first time I try it.

Posted By: bmf1000d
Date Posted: April 04, 2004 at 5:27 PM

you use the lt blue and white for lock unlock the others are if you want to do driver door priority

-------------
"Big" Mike
Double Take
Fremont, Ne
remember to check all your wires with a dmm not a test light!!
i take no responsibilty whatsoever for the vailidty of the info nor consequences thereof