1998 Chevrolet Cheyenne Pickup Alarm/Remote Start Wiring

Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=115223
Printed Date: May 02, 2025 at 11:41 AM

Topic: 1998 Chevrolet Cheyenne Pickup Alarm/Remote Start Wiring

Posted By: heierlu
Subject: 1998 Chevrolet Cheyenne Pickup Alarm/Remote Start Wiring
Date Posted: July 21, 2009 at 7:30 PM

I need to know if this truck has Passlock II on it or not. I can't seem to find out anywhere. If it does, which is the correct DEI bypass module that I need?

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Luke

Replies:

Posted By: i am an idiot
Date Posted: July 21, 2009 at 10:11 PM

Battery	RED	(+)	IGNITION SWITCH HARNESS
Ignition 1	PINK	(+)	IGNITION SWITCH HARNESS
Ignition 2	WHITE	(+)	IGNITION SWITCH HARNESS
Accessory 1	ORANGE	(+)	IGNITION SWITCH HARNESS (HEAT/A.C.)
Accessory 2	BROWN	(+)	IGNITION SWITCH HARNESS
Starter 1	YELLOW	(+)	IGNITION SWITCH HARNESS
Anti-Theft Type	RESISTOR BASED SYS
Anti-Theft Descript	PASSLOCK II
Key Sense	LIGHT GREEN	(-)	48 PIN CONN LEFT OF STEERING COLUMN
Tachometer	WHITE	(-)	AT COIL PASS REAR OF ENGINE
Speed Sense	GREEN / WHITE 4000	(AC)	DRIV FRT QTR BLK 24 PIN CONN POS 3
Parking Lights	BROWN	(+)	HEADLIGHT SWITCH
Brake Lights	WHITE	(+)	AT BRAKE SWITCH
Reverse Lights	LIGHT GREEN	(+)	SWITCH ON TRANSMISSION
Horn	BLACK	(-)	AT STEERING COLUMN

Is there a blister at the base of the Key? If so, it is a resistor, measure the resistance with an Ohm meter. You have to install a like value resistor, on the wires at the ignition switch. I have no idea what color wires they are, maybe some of our Hands-On guys can help you with that part of it.

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Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB

Posted By: heierlu
Date Posted: July 21, 2009 at 10:34 PM

Nope, it's not VATS. There is no resistor in the key. It looks like it has Passlock II according to the chart you just gave me. That's what I needed to know. I just wanted to confirm which security system it has and which DEI module I need. I think it's the 555L.

Also, does anyone know how to hook up a DEI remote start system to the neutral safety switch? And where is the switch located?

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Luke

Posted By: i am an idiot
Date Posted: July 21, 2009 at 10:58 PM

Is it a manual transmission?

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Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB

Posted By: heierlu
Date Posted: July 23, 2009 at 9:56 AM

Nope, it's an automatic.

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Luke

Posted By: heierlu
Date Posted: August 01, 2009 at 11:29 PM

Okay, I got everything hooked up now but can't find the brake switch. I don't see a white wire anywhere nearby and I don't see any type of switch on the brake pedal. Can anyone help me locate this thing?!

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Luke

Posted By: i am an idiot
Date Posted: August 02, 2009 at 6:49 AM

Some Chevy trucks have the switch mounted to the brake pedal. The entire switch and harness moves when you press the brake. I think that there about 6 wires on the harness. Press the brake and look for a moving bundle of wires.

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Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB

Posted By: heierlu
Date Posted: August 02, 2009 at 1:18 PM

You were right, it is in a bundle of wires. It's buried in the dash though...no way to get to it. I'm going to have to try and trace the wire and see if it runs through a spot that I can get to. Thanks for the help.

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Luke