Print Page | Close Window

need 03' chevy wiring diagram

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=6444
Printed Date: July 22, 2025 at 10:39 AM


Topic: need 03' chevy wiring diagram

Posted By: loudnlow
Subject: need 03' chevy wiring diagram
Date Posted: December 09, 2002 at 7:58 PM

I was wondering if anyone has a wiring diargram for a 2003  Cheverolet 1500 , and also are there any tricks that have to be done to put a remote start on one??    It seems that most vehicles are needing the immobilizers now.

 Thanx for any info!




Replies:

Posted By: securinu
Date Posted: December 09, 2002 at 8:00 PM
passlock2 for remote start   best to use the plgmd databus bypass module



Posted By: securinu
Date Posted: December 09, 2002 at 8:02 PM
https://www.the12volt.com/installbay/display_topic_threads.asp?ForumID=3&TopicID=5952



Posted By: 10nesne1
Date Posted: December 10, 2002 at 10:15 AM

Chevrolet

Suburban

2000-2002

Remote Starter  Wiring Colors and Notes

Function

 

 

Vehicle  Color

Location

Start:

 

 

YELLOW (18 AWG)

IGNITION SWITCH HARNESS *

Ignition  #1:

 

 

PINK (16 AWG)

IGNITION SWITCH HARNESS

Ignition #2:

 

 

WHITE (18 AWG)

IGNITION SWITCH HARNESS(ECM)

Ignition  #3:

 

 

N/A

Accessory:

 

 

ORANGE

IGNITION SWITCH HARNESS (HEAT/AC)

Brake  Light:

 

 

WHITE (+)

AT SWITCH ABOVE BRAKE PEDAL

Tach  Signal:

 

 

VIOLET/WHITE

AT PLUG ABOVE VALVE COVER ON DR. SIDE

Parking Lights:

 

 

BROWN (+)

12 PIN PLUG IN FUSE PANEL OR AT SWTICH

Headlights:

 

 

YELLOW (+)

AT HEALIGHT SWITCH

OEM Alarm  Disarm:

 

 

GREEN

IN FLAT CONNECTOR IN DR. KICK PANEL

OEM Alarm  Arm:

 

 

N/A

Diesel  Glow Plug:

 

 

Clutch  Bypass Wire:

 

 

Notes:

 * This Vehicle Is Equipped With GM's PASSLOCK II Anti-Theft System; See Note #113.

Chevrolet

Suburban

2000-2002

Alarm and Keyless  Entry Wiring Colors and Notes

Function

 

 

Vehicle  Color

Location

Constant  +12 Volts:

 

 

RED (2)

IGNITION SWITCH HARNESS

Starter  Kill:

 

 

YELLOW (18 AWG)

IGNITION SWITCH HARNESS *

Ignition  +12 Volts:

 

 

PINK (16 AWG)

IGNITION SWITCH HARNESS

Dome  Lights/Superv:

 

 

WHITE

AT PLUG IN CONVIENENCE CENTER **

OEM Horn:

 

BLACK (-)

STEERING COLUMN HARNESS

Power  Lock:

 

 

LT. BLUE

12 PIN PLUG AT FUSE PANEL ON DR. SIDE

Power  Unlock:

 

 

WHITE

DRIVER'S KICK PANEL IN BODY CAVITY ***

Trunk  Release:

 

 

N/A

Alarm  Input Wire:

 

 

WHITE

AT PLUG IN CONVIENENCE CENTER **

Notes:

** Convenience Center Is Locate Under Driver's Dash Near Fire Wall (Listen for dome light relay). *** See Note #202 - Positive Pulse Door Lock Diagram.

Hope this wiring diagram would help you.  good luck


Print Page | Close Window