Directed 403.GM4 User manual
DB3 403.GM4
v4.21
2007 Chevrolet Silverado Classic
Introduction 3
Vehicle function compatibilities 4
Pre-installation and application warnings 5
Wiring diagram 6
Locating components in the vehicle 7
Vehicle connections 8
Module programming 11
For Convenience-Only programming, see next section. 11
Module programming for convenience only (skip transponder)
12
Connecting the module 12
LED diagnostics and troubleshooting 14
Soft reset 16
Hard reset 16
Feature programming 17
Feature and option list 18
Limited one year consumer warranty 19
Quick Reference Guide (customer copy) 20
Contents
3403.GM4 4.21 2007 Chevrolet Silverado Classic
©2023 VOXX•DEI LLC. All rights reserved.
Introduction
DB3 is an all-in-one door lock and override module.
Warning!
This module can only be flashed and configured using DirectLink at www.directechs.com or using the Directechs
Mobile application for smartphones. Refer to “Connecting the module” for more information.
4403.GM4 4.21 2007 Chevrolet Silverado Classic
©2023 VOXX•DEI LLC. All rights reserved.
Vehicle function compatibilities
This section lists all the functions compatible with this vehicle for the installation illustrated in this guide.
Note: The telematics features listed below (with an asterisk) ONLY apply when using SmartStart.
Heated Mirrors
Heated Seats Activation
Rear Window Defogger Activation
Arm Factory Security
Disarm Factory Security
Door Lock Control
Door Unlock
Driver Priority Unlock
Control of aftermarket alarm with OEM remote
Immobilizer Bypass-Data No Key Req'd
RAP Shut Down (Retained ACC Power)
Remote Start Takeover
SmartStart
Tach / RPM Output
Factory Alarm Trigger Monitoring
Ignition Status
5403.GM4 4.21 2007 Chevrolet Silverado Classic
©2023 VOXX•DEI LLC. All rights reserved.
Pre-installation and application warnings
START HERE This section highlights important information for this specific firmware and will assist in pricing accordingly, as
well as bringing awareness to any operational or vehicle limitations.
Compatibilities and Requirements
T-Harness
compatible T-Harness is not compatible. Keys required for
programming 1Keys required
for operation 0
Vehicle Takeover Refer to the Quick Reference Guide section for more details.
Firmware notes
Unless specified otherwise, all connectors are displayed from the wire side, with the exception of the OBDII diagnostic connector.T-
Refer to the "Vehicle connections" following the installation diagram.
Footnotes
[1] Hood pin: The installation of an aftermarket hood pin is only required on vehicles that are not equipped with a factory
hood pin, or if not supported in data.
[2] Tach: The tach wire is an optional connection required on some remote starters, which do not support a tach signal in D2D.
[3] Door input connection: Only required for rear door pin detection.
6403.GM4 4.21 2007 Chevrolet Silverado Classic
©2023 VOXX•DEI LLC. All rights reserved.
Refer to "Pre-installation and application warnings" for important information, such as the description of each special note referenced in the diagram ( ).
Wiring diagram
D2D Port
J1850:
Violet, pin 2
OBDII
Diagnostic Connector
(+) Ignition 1 Output
(+) Ignition 2 Output
(+) Accessory 1 Output
(-) Accessory 2 Output
(+) Starter Output
(+) 12V Input
J1850 Data: Violet/Yellow: 2
1412
10 42
TX
(+) 12V
(-) Ground
RX
(-) Ground (-) Ground
(-) Parking Lights Output
(+) Brake Input
(-) Door Status Input
XKD2D65
A
B AC
G E D
(+) Accessory 2:
Brown, pin A
(+) Ignition 1:
Pink, pin C
(+) 12V: Red, pin B
(+) Ignition 2: White, pin E
(+) Starter:
Yellow, pin D
(-) Parking Light:
Gray/Black, pin B2
A12
B12
A1
B1
BCM
(brown conn. under driver dash)
Brake Switch
(black conn. at brake pedal)
(+) 12V
(-) Acc.
30
86 85
87
87a
(+) Brake:
White, pin A
A1 A8
B1 B8
(-) Right Rear Door:
Lt. Green/Black, pin A2
(-) Left Rear Door:
Lt. Blue/Black, pin A3
1A Diode
1A Diode
25A Fuse
BCM
(violet conn.
under driver
dash, rear)
(AC) Tach Input (AC) Tach Output: Violet/White: 5
16
8
9
1
(+) Accessory 1:
Orange, pin G
(-) Hood Pin Input
Hood Pin
F E D C B
F
Ignition Switch
(black conn. at switch)
8403.GM4 4.21 2007 Chevrolet Silverado Classic
©2023 VOXX•DEI LLC. All rights reserved.
Vehicle connections
The connection information listed below is specific to the 2007 Chevrolet Silverado Classic. Refer to “Pre-installation and application warnings” for a list of important notes.
Data 14-pin blue connector (H1)
Module Connects To
Conn./Pin Color Description Wire Location (+/-) Wire Color
H1/1 Light Green No Connection No Connection
H1/2 Violet/Yellow (DATA) J1850 OBD-data link connector, black 16 pin plug, pin 2 data violet
H1/3 Tan/Black No Connection No Connection
H1/4 Tan No Connection No Connection
H1/5 Orange/Green No Connection No Connection
H1/6 Orange/Brown No Connection No Connection
H1/7 Brown Relay N.O. - No Connection No Connection
H1/8 Yellow Relay COM - No Connection No Connection
H1/9 Orange/Yellow Relay N.C. - No Connection No Connection
H1/10 Orange/Red Relay N.C. - No Connection No Connection
H1/11 Yellow/Red Relay COM - No Connection No Connection
H1/12 Brown/Red Relay N.O. - No Connection No Connection
H1/13 Red (+) W2W Only - 12 Volt ignition switch, black 7 pin plug, pin F + red (40A)
H1/14 Black (-) W2W Only - Ground (chassis ground)
Output 12-pin red connector (H2)
Module Connects To
Conn./Pin Color Description Wire Location (+/-) Wire Color
H2/1 Black/White No Connection No Connection
H2/2 Green/Black No Connection No Connection
H2/3 Green/White (-) W2W Only - Door Output Remote Starter
H2/4 Red/Black (-) W2W Only - Trunk Output Remote Starter
H2/5 Violet/White (AC) W2W Only - Tach Output [2] Remote Starter
H2/6 Gray No Connection No Connection
H2/7 Gray/Black No Connection No Connection
H2/8 Violet/Green No Connection No Connection
H2/9 Violet/Brown No Connection No Connection
H2/10 Yellow/Black No Connection No Connection
H2/11 Orange/Black No Connection No Connection
H2/12 Blue/Red No Connection No Connection
Input 10-pin black connector (H3)
Module Connects To
Conn./Pin Color Description Wire Location (+/-) Wire Color
9403.GM4 4.21 2007 Chevrolet Silverado Classic
©2023 VOXX•DEI LLC. All rights reserved.
Module Connects To
Conn./Pin Color Description Wire Location (+/-) Wire Color
H3/1 Green (-) W2W Only - Lock Input Remote Starter
H3/2 Blue (-) W2W Only - Unlock Input Remote Starter
H3/3 Red/White (-) W2W Only - Trunk Input Remote Starter
H3/4 Red/Black No Connection No Connection
H3/5 Violet/Black No Connection No Connection
H3/6 White/Black (-) W2W Only - Heated Seat Activation Remote Starter
H3/7 Pink/White No Connection No Connection
H3/8 Violet No Connection No Connection
H3/9 Pink (+) W2W Only - Ignition Input Remote Starter
H3/10 Blue/White (-) W2W Only - GWR Input Remote Starter
D2D 4-pin white connector (H4)
Module
Conn./Pin Color Description
H4/1 Green
H4/2 Black
H4/3 Blue
H4/4 Red
RF 2-pin white connector (H5)
Module
Conn./Pin Color Description
H5/1 N/A No Connection
H5/2 N/A No Connection
10 403.GM4 4.21 2007 Chevrolet Silverado Classic
©2023 VOXX•DEI LLC. All rights reserved.
Additional remote start connections
(Not all of these connections may be required for your installation. Refer to the wiring diagram for vehicle-specific connections.)
Wire Connects To
Wire Location (+/-) Wire Color
12 Volts ignition switch, black 7 pin plug, pin F + red (40A)
Accessory ignition switch, black 7 pin plug, pin G + orange
Brake Wire brake switch, black 6 pin plug, pin A + white
Hood Pin Not Applicable
Ignition ignition switch, black 7 pin plug, pin C + pink
Left Rear Door Trigger - Must use a diode BCM under driver dash, rear, violet 16 pin plug, pin A3 - lt. blue/black
Parking Lights - BCM under driver dash, brown 24 pin plug, pin B2 - gray/black
Right Rear Door Trigger - Must use a diode BCM under driver dash, rear, violet 16 pin plug, pin A2 - lt. green/black
Second Accessory - Must use a relay - Must use a fuse ignition switch, black 7 pin plug, pin A + brown
Second Ignition ignition switch, black 7 pin plug, pin E + white
Starter ignition switch, black 7 pin plug, pin D + yellow
Tachometer instrument cluster, gray 24 pin plug, pin A5 ac white
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