Directed Directechs DB3 User manual

DB3 403.CHRYSLER20
v1.05
2022 Dodge/Ram 2500 (Smart Key)
THCHD3-REV3+ Compatible
(Sold Separately)

Introduction 3
Vehicle function compatibilities 4
Pre-installation and application warnings
5
Installation 6
Wiring diagram with T-Harness (THCHD3 Rev. 3+) 6
Wiring diagram 7
Locating components in the vehicle 8
Vehicle connections 9
Module programming 11
Module programming for convenience only (skip transponder) 12
SmartStart/XL202 installation notes 13
Connecting the module 13
LED diagnostics and troubleshooting 15
Parking light error codes 17
Soft reset 17
Hard reset 17
Feature programming 18
Feature and option list 19
Limited one year consumer warranty 20
Quick Reference Guide (customer copy) 21
Contents

3403.CHRYSLER20 1.05 2022 Dodge/Ram 2500 (Smart Key)
©2022 VOXX•DEI LLC. All rights reserved.
Introduction
DB3 is an all-in-one door lock and override module. This guide supports the installation of a DB3 in Remote
Start Ready (RSR) mode. This solution may offer up to three (3) configuration options to control your system: 3x
OEM Lock Remote Start Activation (if applicable, refer to the “Vehicle function compatibilities” below), RF System
or SmartStart (all sold separately).
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.CHRYSLER20 1.05 2022 Dodge/Ram 2500 (Smart Key)
©2022 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.
Parking Lights Control
Heated Seats Activation
Heated Steering Activation
Rear Window Defogger Activation
Arm Factory Security
Disarm Factory Security
Door Lock Control
Door Unlock
Control of aftermarket alarm with OEM remote
Key2GO
Immobilizer Bypass-Data No Key Req'd
RAP Shut Down (Retained ACC Power)
Remote Start Ready
Remote Start Takeover
SmartStart
Tach / RPM Output
Entry Monitoring ALL Door Pins
Entry Monitoring Hood Pin
Entry Monitoring Trunk/Hatch Pin
Brake Status (foot brake)
Door Locks Status
E-Brake Status
Ignition Status

5403.CHRYSLER20 1.05 2022 Dodge/Ram 2500 (Smart Key)
©2022 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 THCHD3 Rev. 3+
AUX
Keys
required for
programming 1Keys required
for operation 0
Vehicle Takeover Refer to the Quick Reference Guide section for more details.
Firmware notes
Heated steering wheel: Turns on with heated seats.
Key2GO: Mandatory to control the immobilizer override in this firmware.
T-Harness (THCHD3 Rev. 3+):
•All T-Harness wires not listed in the diagram are not required for the installation. Loose wires such as Siren Output and
Hood Input may need to be pulled from the tapped section of the T-harness. Refer to the "wiring diagram with T-Harness"
for more information on connections and installation instructions.
•The optional Plug & Play THCHD3 Rev. 3+ T-Harness is sold separately.
•The OBDII Diagnostic Connector features will remain the same even when the T-Harness is installed.
•All T-Harness wires not listed in the diagram are not required for the installation.
Remote Start Ready (RSR):
•RSR installations are not compatible with vehicles equipped with a manual transmission.
•RSR is a function that enables the interface module to remote start the vehicle completely on its own
Consequently, there is no need for an aftermarket or an OEM remote starter in order to start the vehicle from a distance.
SmartStart Compatible: SmartStart is equipped with D2D, which means it can be connected to an interface module and used in
Remote Start Ready (RSR) mode without the use of a remote starter. See "Module programming" for more information.
Unless specified otherwise, all connectors are displayed from the wire side, with the exception of the OBDII diagnostic connector
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] HS CAN 2 connections: Only required when Heated Seats is selected during module flashing.

6403.CHRYSLER20 1.05 2022 Dodge/Ram 2500 (Smart Key)
©2022 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 ( ).
Cut all 4 loops.
1412
10 42
Keyless Ignition Node
(black connector
at PTS switch)
THCHD3 Rev. 3+
(optional T-Harness)
OR
OBDII
Diagnostic Connector
Male
Connect T-Harness
male connector
into PTS switch
male
Female
T-01
(6-pin black conn.) T-02
(6-pin white conn.)
Male
Female Not Used
Not Used
Use the style of OBDll
connector that fits the best.
female
male
(MUX) Parking Lights:
White/Brown, pin 1
4
987
32
106
15
Headlight Switch
(black 10-pin conn.)
(MUX) Parking Light Output: Violet/Brown
2
1
3
2
1
3
1
2
3
CAN C Low:
White/Blue, pin 2
CAN C High:
White/Green, pin 1
CAN Junction
(green CAN junction connector
behind headlight switch)
CAN Junction
(green CAN junction connector
behind headlight switch)
HS CAN 2 Low: Tan
HS CAN 2 High: Tan/Black
HS CAN 1 High: Orange/Green
HS CAN 1 Low: Orange/Brown
Connections required for Rev. 3 ONLY
Wiring diagram with T-Harness (THCHD3 Rev. 3+)
(+) Ignition Output: Yellow/Red
You can connect to either a XL202
RFTD OR a SmartStart module.
Refer to the SmartStart/XL202
Installation Notes for more information.
The Remote Start
Safety Override Switch
must be in the OFF position.
(+) Ignition Sense:
Pink/White, pin 21
Junction Connector
(black connector, plug - XY401A,
above driver kick panel)
1
23 39
10
59
54
2
3
1
CAN IHS High:
White/Gray, pin 1
CAN IHS Low:
White/Orange, pin 2

7403.CHRYSLER20 1.05 2022 Dodge/Ram 2500 (Smart Key)
©2022 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 ( ).
1
2
3
1412
10 42
(MUX) Parking Light Output: Violet/Brown: 9
(+) Ignition Output: Yellow/Red: 11
(+) 12V Input: Brown/Red: 12
(+) PTS Output: Gray/Black: 7
HS CAN 1 High: Orange/Green: 5
HS CAN 1 Low: Orange/Brown: 6
HS CAN 2 High: Tan/Black: 3
HS CAN 2 Low: Tan: 4
(MUX) Parking Lights:
White/Brown, pin 1
4
987
32
106
15
Headlight Switch
(black 10-pin conn.)
2
1
3
CAN C Low:
White/Blue, pin 2
CAN C High:
White/Green, pin 1
2
1
3
CAN Junction
(green CAN junction connector
behind headlight switch)
(+) PTS:
Violet/Brown, pin 4
Keyless Ignition Node
(black conn. at
Start-Stop button)
CAN IHS Low:
White/Orange,
pin 2
(+) 12V:
Violet/Red, pin 3
2
3
1
CAN Junction
(green CAN junction connector
behind headlight switch)
4
3
21
BCM
(black-gray 4-pin conn., plug [B],
under driver dash, on firewall)
You can connect to either a
XL202 RFTD OR a SmartStart
module.
Refer to the SmartStart/XL202
Installation Notes for more
information.
6: White/Black:
(-) Hood Input
Remote Start Safety
Override Switch
Hood Pin
(+) 12V Input: Red: 13
(+) Ground: Black: 14
Wiring diagram
(+) Ignition Sense:
Pink/White, pin 21
Junction Connector
(black connector, plug - XY401A,
above driver kick panel)
1
23
39
10
59
54
CAN IHS High:
White/Gray, pin 1

8403.CHRYSLER20 1.05 2022 Dodge/Ram 2500 (Smart Key)
©2022 VOXX•DEI LLC. All rights reserved.
Locating components in the vehicle

9403.CHRYSLER20 1.05 2022 Dodge/Ram 2500 (Smart Key)
©2022 VOXX•DEI LLC. All rights reserved.
Vehicle connections
The connection information listed below is specific to the 2022 Dodge/Ram 2500 (Smart Key). 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 No Connection No Connection
H1/3 Tan/Black (DATA) HS CAN High 2 [2] Green CAN Junction Block behind headlight switch, white 3 pin plug, pin 1
Only required when Heated Seats is selected during module flashing.
Data White/Gray (CAN IHS)
H1/4 Tan (DATA) HS CAN Low 2 [2] Green CAN Junction Block behind headlight switch, white 3 pin plug, pin 2
Only required when Heated Seats is selected during module flashing.
Data White/Orange (CAN IHS)
H1/5 Orange/Green (DATA) HS CAN High 1 Green CAN Junction Block behind headlight switch, white 3 pin plug, pin 1 Data White/Green (CAN C)
H1/6 Orange/Brown (DATA) HS CAN Low 1 Green CAN Junction Block behind headlight switch, white 3 pin plug, pin 2 Data White/Blue (CAN C)
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 - (+) Ignition Output Above Driver Kick, black 59 pin plug (XY401A), pin 21 + Pink/White
H1/12 Brown/Red Relay N.O. - (+) 12 Volt Input BCM under driver dash on firewall, black-gray 4 pin plug (B), pin 3 + Violet/Red (40A)
H1/13 Red (+) 12 Volt Input BCM under driver dash on firewall, black-gray 4 pin plug (B), pin 3 + Violet/Red (40A)
H1/14 Black (-) 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 No Connection No Connection
H2/4 Red/Black (+) 12 No Connection No Connection
H2/5 Violet/White No Connection No Connection
H2/6 Gray No Connection No Connection
H2/7 Gray/Black (+) PTS Output Keyless Ignition Node (Start Stop Button), black 6 pin plug, pin 4 + Violet/Brown
H2/8 Violet/Green No Connection No Connection
H2/9 Violet/Brown (MUX) Parking Light Output Headlight Switch, black 10 pin plug, pin 1 MUX White/Brown
H2/10 Yellow/Black No Connection No Connection
H2/11 Orange/Black No Connection No Connection
H2/12 Blue/Red No Connection No Connection

10 403.CHRYSLER20 1.05 2022 Dodge/Ram 2500 (Smart Key)
©2022 VOXX•DEI LLC. All rights reserved.
Input 10-pin black connector (H3)
Module Connects To
Conn./Pin Color Description Wire Location (+/-) Wire Color
H3/1 Green No Connection No Connection
H3/2 Blue No Connection No Connection
H3/3 Red/White No Connection No Connection
H3/4 White/Violet No Connection No Connection
H3/5 Violet/Black No Connection No Connection
H3/6 White/Black (-) Hood Pin Input [1] The installation of an aftermarket hood pin is onl
H3/7 Pink/White No Connection No Connection
H3/8 Violet No Connection No Connection
H3/9 Pink No Connection No Connection
H3/10 Blue/White No Connection No Connection
D2D 4-pin white connector (H4)
Module
Conn./Pin Color Description
H4/1 Blue (Data) TX
H4/2 Black (-) Ground
H4/3 Green (Data) RX
H4/4 Red (+) 12 Volt
RF 2-pin white connector (H5)
Module
Conn./Pin Color Description
H5/1 N/A No Connection
H5/2 N/A No Connection