2003 Chevy Tahoe remote start

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=31678
Printed Date: May 31, 2024 at 10:53 PM

Topic: 2003 Chevy Tahoe remote start

Posted By: losone
Subject: 2003 Chevy Tahoe remote start
Date Posted: May 06, 2004 at 12:52 AM

I have a 2003 tahoe that I just installed an autopage 850 with remote start . The problem I have is that when I remote start it the abs & parking brake light come on until I use the key. The auto page only as 2 ignition outputs & one accessory wire, which I have connected to the pink ign 1, white ign 2 & the brown acc.

I believe I have a thrid ign which is orange, & being that that is not connected to the alarm could be why im getting the abs light?? The question I have is, IS this orange wire the ign 3 or another acc wire( ive seen it called both in other posts)??? And how should I connect it?? I've been told to use a relay & connect it to the ign 2 of the alarm, & also to connect it with a relay to the alarms acc wire, & autopage told me to use a diode & connect it to the ground when running wire going to the passlock bypass???

Im really confused as to how to finish this installation, what wires do you guys use on 2003 chevys???

Thanks

Replies:

Posted By: rudbwoy69camaro
Date Posted: May 06, 2004 at 8:56 AM

2003 Chevrolet Tahoe

Item	Wire Color	Polarity	Wire Location
12V	red & RED / white	+	ignition harness
STARTER	yellow	+	ignition harness
IGNITION	pink	+	ignition harness
ACCESSORY	orange	+	ignition harness
SECOND ACCESSORY	white	+	ignition harness
TACHOMETER	NOT pink		any fuel injector
POWER LOCK	use Directed module
POWER UNLOCK	part #456G *3
PARKING LIGHTS +	brown		driver kick panel
PARKING LIGHTS -	gray/black		headlight switch
DOOR TRIGGER	*1	-	*1
HEADLIGHTS	pink or white	-	headlight switch
WIPERS
LF WINDOW UP/DN	blue - brown	A	LF window switch in door
RF WINDOW UP/DN	lt. blue - tan	A	RF window switch in door
LR WINDOW UP/DN	blue - brown	A	LR window switch in door
RR WINDOW UP/DN	blue - brown	A	RR window switch in door
TRUNK/HATCH PIN	pink/black	-	harness to BCM *2
HOOD PIN
TRUNK/HATCH RELEASE
FACTORY ALARM ARM
FACTORY ALARM DISARM	lt. green	-	driver door module in door
HORN TRIGGER	black or blk/yel	-	column or gray plug @ BCM *2
BRAKE WIRE	white	+	brake pedal switch
LOCK MOTOR	gray		driver door module in door
UNLOCK MOTOR	tan		driver door module in door
DISARM DEFEAT	tan		driver rear door harness
DISARM NO UNLOCK	none
DOME SUPERVISION	comes on with disarm
SPEED SENSE
SUN ROOF OPEN/CLOSE
SUN ROOF LIMIT
LF SPEAKER
RF SPEAKER
LR SPEAKER
RR SPEAKER
RADIO 12V
RADIO GROUND
RADIO SWITCH
RADIO ILLUMINATE
POWER ANTENNA

Notes:	NOTE: This vehicle has the passlock II immobilizer system that, when adding a remote start, must be interfaced with. Use DEI part 555t or 555L. 1 The driver door trigger is gray/black at the driver door module in the door. The RF door trigger is BLACK/ white at the passenger door module in the door. The LR door trigger is lt. blue/black and the RR is lt. GREEN/ black, they are in a harness in front of the fusebox leading to the BCM rear plug. Use all four wires and diode isolate each. 2 The BCM (Body Control Module) is located behind the headlight switch. *3 If Directed module part #456G is not available, refer to directfax document #1601. Upper trim level vehicles may have a door lock switch on the right rear panel. If present use white (-) for lock and lt. blue (-) for unlock.

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Posted By: rudbwoy69camaro
Date Posted: May 06, 2004 at 9:03 AM

What transponder bypass are you using?

autopage told you right, check out the relays page(s) here on 12volt:
https://www.the12volt.com/installbay/forum_topics.asp?fid=5

https://www.the12volt.com/relays/page5.asp

Look for this at the bottom of the page too:
Relays:
• Converting Polarity
• Starter Interrupts
• Door Locks
• Illuminated Entry & Light Flash
• Special Applications

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Posted By: losone
Date Posted: May 06, 2004 at 10:59 AM

Im using the passlock unit from crimestopper. All that seems to be working fine. So your saying rather than splitting one of the ignition ouputs from the alarm with a relay, to use the ground while running output from the alarm. Since I beleive this is a negative output, does it need to be converted to positive to power the extra ignition/acc wire??

Posted By: profuse007
Date Posted: May 06, 2004 at 11:05 AM

yep, since all ACCs/IGNs are isolated, lets keep 'em that way and use another relay to power it up.

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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).

Posted By: sexyvic1
Date Posted: May 16, 2004 at 12:53 AM

just wanted to know how the install went.. i will be puting the same alarm in my 2001 tahoe. do u have any tips for me? any sites with wiring diagrams? please help and reply. thanks.

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Posted By: profuse007
Date Posted: May 16, 2004 at 3:33 AM

www.7thgencivic.com has Directtech diagram which are pretty detailed. need to sign up for the site, its free.

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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).

Posted By: NowYaKnow
Date Posted: May 16, 2004 at 10:37 AM

A little late, but you need to fire up the pink with ignition 1, the white with ignition 2, and the orange with accessory 1. You don't need the brown 99% of the time. If you power up the previous wires and still have problems turn on the brown as accessory 2 using 2 relays off of the accessory 1.

Mike

Posted By: superfly
Date Posted: May 18, 2004 at 6:40 PM

A little word of advice to add, check to make sure there are not 3 ign wires, if it does it will have 2 pinks and 1 white, the small 18 gauge pink wire must be powered up or damage to the vehicles transmission will occur, this wire powers the computer for the transmission and it doesnt like it when the vehicle is running and there is no power on this wire. This wire is usually just to the right of one of the red 12 volt constant wires in the steering column harness connector.

Chris

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Check twice, install once. Superfly