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2003 Silverado 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=46283
Printed Date: May 18, 2024 at 1:21 AM


Topic: 2003 Silverado remote start wiring

Posted By: ga1990
Subject: 2003 Silverado remote start wiring
Date Posted: December 29, 2004 at 10:24 AM

I'm wanting to install a remote start on my 2003 silverado 1500, does anyone have the wiring diagram? Thanks.



Replies:

Posted By: KarTuneMan
Date Posted: December 29, 2004 at 6:50 PM
12volts red (x2)  +  ignition harness
Starter yellow  +  ignition harness
Second Starter N/A    
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 N/A    
Accessory orange  +  ignition harness
Second Accessory brown  +  ignition harness
Keysense lt. green  -  ignition harness
Power Lock use Directed module 456G    
Notes: If Directed module 456G is not available, refer to DirectFax document 1601.

On base model trucks, the 456G is not necessary. Instead, the lock wire is lt. blue (-), pin B5, and the unlock wire is white (-), pin B10. They are in the lt. blue plug at the BCM.
Power Unlock see power lock    
Lock Motor gray  5wi driver door module in door
Unlock Motor tan  5wi driver door module in door
Parking Lights+ brown  +  driver kick panel
Parking Lights- gray/black  -  BCM, brown plug, pin B2
Notes: The BCM (Body Control Module) is under the driver side dash. It has 6 plugs in it, the purple plug is on the back.
Hazards white  -  steering column, 5 pin plug
Turn Signal(L) dk. green  +  steering column, 5 pin plug
Turn Signal(R) lt. green  +  steering column, 5 pin plug
Reverse Light lt. green  +  BCM, black plug, pin F
Notes: The BCM (Body Control Module) is under the driver side dash. It has 6 plugs in it, the purple plug is on the back.
Door Trigger gray/blk (L), BLACK/ wht (R)  -  each door module in each door
Notes: On base model trucks the door trigger wires are in the lt. blue plug at the BCM, pins B4 and A5. On 4dr trucks the LR door trigger is lt. blue/black, pin A3, and the RR is lt. GREEN/ black, pin A2. They are in the purple plug at the BCM. Use all wires and diode isolate.

The BCM (Body Control Module) is under the driver side dash. It has 6 plugs in it, the purple plug is on the back.
Dome Supervision gray/black  +  BCM, black plug, pin E
Notes: The BCM (Body Control Module) is under the driver side dash. It has 6 plugs in it, the purple plug is on the back.
Trunk/Hatch Pin N/A    
Hood Pin N/A    
Trunk/Hatch Release N/A    
Power Sliding Door N/A    
Factory Alarm Arm arms with lock    
Factory Alarm Disarm lt. green  -  driver door module in door
Disarm No Unlock see factory alarm disarm    
Tachometer white  ac  instrument cluster, pin A5 or PCM
Notes: The PCM (Powertrain Control Module) is in the left front of the engine compartment to the left of the fan shroud. The tach wire is in the green plug, pin 10.

For tach can also go to any of the ignition coils or injectors and use the wire that is NOT pink, black, or brown.
Wait to start dk. blue  -  instrument cluster, pin A2 or PCM
Notes: The PCM (Powertrain Control Module) is in the left front of the engine compartment to the left of the fan shroud. The wait to start wire is in the green plug, pin 36.
Brake Wire white  +  brake pedal switch
Parking Brake lt. blue  -  BCM, lt. blue plug, pin A7
Notes: The BCM (Body Control Module) is under the driver side dash. It has 6 plugs in it, the purple plug is on the back.
Horn Trigger BLACK / YELLOW to black  -  steering column
Memory Seat 1 red  +  driver door module in door
Memory Seat 2 pink  +  driver door module in door
Memory Seat 3 N/A  +  
posted_image
Immobilizer Bypass Module:Required: YesType: Passlock 2Part #: 555L or 555T
Notes: The Passlock 2 wire colors are yellow, black, and RED / white (not used).


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