Printer Friendly Forum Posts - 2003 Chevy Alarm Install Wiring Diagram

DIRECTWIRE™ WIRING INFORMATION - CHEVROLET / EXPRESS VAN / 2003 / Security
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12volts	RED / black (x2)	+	ignition harness
Starter	yellow	+	ignition harness
Ignition	pink	+	ignition harness
Power Lock	lt. blue	-	pin B5, lt blue plug at BCM
Notes: The BCM (Body Control Module) is under the passenger side dash, behind the knee bolster.
Power Unlock	white	-	pin B10, lt blue plug at BCM
Notes: The BCM (Body Control Module) is under the passenger side dash, behind the knee bolster.
Lock Motor	gray	5wi	driver kick, door harness
Unlock Motor	tan	5wi	driver kick, door harness
Disarm Defeat	tan	5wi	fuse box under driver seat
Parking Lights+	brown	+	fuse box under driver seat
Parking Lights-	BROWN / white	-	pin B2, brown plug at BCM
Notes: The BCM (Body Control Module) is under the passenger side dash, behind the knee bolster.
Hazards	white	-	pin A5, gray plug at BCM
Notes: The BCM (Body Control Module) is under the passenger side dash, behind the knee bolster.
Turn Signal(L)	lt. blue/white	+	steering column
Turn Signal(R)	dk. blue/white	+	steering column
Door Trigger	see notes	-	lt. blue plug at BCM
Notes: The driver door trigger is tan in pin B4, the front passenger and rear cargo door trigger is lt. green in pin A5, and the rear doors or sliding doors trigger is yellow/black in pin A10. Use all three wires and diode isolate each. The BCM (Body Control Module) is under the passenger side dash, behind the knee bolster.
Dome Supervision	gray/black or dk. blue/wht	+	pin E, black plug at BCM
Notes: The BCM (Body Control Module) is under the passenger side dash, behind the knee bolster.
Trunk/Hatch Pin	common with door trigger
Hood Pin	N/A
Trunk/Hatch Release	N/A
Power Sliding Door	N/A
Factory Alarm Arm	N/A
Factory Alarm Disarm	N/A
Disarm No Unlock	N/A
Tachometer	white or purple	ac	pin 26, green plug at PCM
Notes: It is white on the 4.3L, and purple on the 4.8L, 5.3L, and 6.0L. The PCM (Powertrain Control Module) is on the driver side fender.
Horn Trigger	tan	-	pin B9, gray plug at BCM
Notes: The BCM (Body Control Module) is under the passenger side dash, behind the knee bolster.
Memory Seat 1	N/A
Memory Seat 2	N/A
Memory Seat 3	N/A

Immobilizer Bypass Module:	Required: Yes	Type: Passlock 2	Part #: 555L or 555T
Notes: The Passlock 2 wire colors are yellow, tan, and ORANGE / 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.