555L.pdf
DIRECTWIRE™ WIRING INFORMATION - CHEVROLET / AVALANCHE / 2003 / Remote Start
12volts  red & RED / white   +   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 457G or 456G module        
Notes: If Directed module 457G or 456G is not available, refer to DirectFax document 1601. 
Power Unlock  see power lock        
Lock Motor  gray      driver door module in door  
Unlock Motor  tan      driver door module in door  
Parking Lights+  brown   +   driver kick panel  
Parking Lights-  gray/black   -   switch or 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  
Turn Signal(L)  green   +   steering column  
Turn Signal(R)  lt. green   +   steering column  
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  see notes   -   see notes  
Notes: 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, pin A3, and the RR is lt. GREEN/ black, pin A2, they are in the purple plug at the BCM. Use all four wires and diode isolate each.
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 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  N/A        
Brake Wire  white   +   brake pedal switch  
Parking Brake  lt. blue   -   switch or BCM, lt. blu 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   -   column or BCM, gray plug, pin B9  
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. 
Memory Seat 1  red   +   driver door module in door  
Memory Seat 2  pink   +   driver door module in door  
Memory Seat 3  N/A   +     
 Immobilizer Bypass Module: Required: Yes Type: Passlock 2 Part #: 457G, 555L, or 555T 
Notes: The Passlock 2 wire colors are yellow, black (org/blk), and RED / white (not used). 
      
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.
 
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