Directed Directechs DB3 User manual

Designed by Installers for Installers
INSTALLATION GUIDE
DB3
2012 Lexus IS 350C (Smart Key). 403.TL4 4.00
© 2019 Directed, Vista CA
This product is intended for installation by a professional installer only! Attempts to install this
product by a person other than a trained professional may result in severe damage to a vehicle’s
electrical system and components.

Introduction 4
Vehicle function compatibilities 4
Pre-installation and application warnings 5
Wiring diagram 5
Locating components in the vehicle 7
Vehicle connections 8
Connecting the module 11
Module programming 12
Key-type vehicles 12
Push-to-Start (PTS) vehicles 12
LED diagnostics and troubleshooting 13
Soft reset 15
Hard reset 15
Feature programming 16
Feature and option list 17
Limited one year consumer warranty 18
Quick reference guide 19
Contents

3403.TL4 4.00 2012 Lexus IS 350C (Smart Key)
© 2019-05-31 Directed. All rights reserved.
Warning! Safety first
The following safety warnings must be observed at all times:
• Due to the complexity of this system, installation of this product must only be performed by an authorized Directed dealer.
• When properly installed, this system can start the vehicle via a command signal from the remote control. Therefore, never
operate the system in an area that does not have adequate ventilation.
The following precautions are the sole responsibility of the user; however, authorized Directed dealers should:
• Never use a test light or logic probe when installing this unit. Always use a multimeter.
• Never operate the system in an enclosed or partially enclosed area without ventilation (such as a garage).
• When parking in an enclosed or partially enclosed area or when having the vehicle serviced, the remote start system must
be disabled using the installed toggle switch. It is the user’s sole responsibility to properly handle and keep out of reach from
children all remote controls to assure that the system does not unintentionally remote start the vehicle.
• USER MUST INSTALL A CARBON MONOXIDE DETECTOR IN OR ABOUT THE LIVING AREA ADJACENT TO THE VEHICLE.
ALL DOORS LEADING FROM ADJACENT LIVING AREAS TO THE ENCLOSED OR PARTIALLY ENCLOSED VEHICLE
STORAGE AREA MUST REMAIN CLOSED AT ALL TIMES.
Use of this product in a manner contrary to its intended mode of operation may result in property damage, personal injury, or
death. Except when performing the Safety Check outlined in this installation guide, (1) Never remotely start the vehicle with
the vehicle in gear, and (2) Never remotely start the vehicle with the keys in the ignition. The user is responsible for having the
neutral safety feature of the vehicle periodically checked, wherein the vehicle must not remotely start while the car is in gear.
This testing should be performed by an authorized Directed dealer in accordance with the Safety Check outlined in this product
installation guide. If the vehicle starts in gear, cease remote start operation immediately and consult with the user to fix the problem
immediately.
OPERATION OF THE REMOTE START MODULE IF THE VEHICLE STARTS IN GEAR IS CONTRARY TO ITS INTENDED MODE OF
OPERATION. OPERATING THE REMOTE START SYSTEM UNDER THESE CONDITIONS MAY RESULT IN PROPERTY DAMAGE
OR PERSONAL INJURY. IMMEDIATELY CEASE THE USE OF THE UNIT AND REPAIR OR DISCONNECT THE INSTALLED REMOTE
START MODULE. DIRECTED WILL NOT BE HELD RESPONSIBLE OR PAY FOR INSTALLATION OR REINSTALLATION COSTS.
Remote starters for manual transmission pose significant risks if not properly installed and operated. When testing to ensure the
installation is working properly, only remote start the vehicle in neutral gear, on a flat surface and with a functional, fully engaged
parking brake. Do not allow anyone to stand in front of or behind the vehicle.
This product should not be installed in any convertible vehicles, soft or hard top with a manual transmission. Installation in such
vehicles may pose certain risk.

4403.TL4 4.00 2012 Lexus IS 350C (Smart Key)
© 2019-05-31 Directed. 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.
Vehicle function compatibilities
This section lists all the functions compatible with this vehicle for the installation illustrated in this guide.
Immobilizer Bypass-Data No Key Req'd
SmartStart
Tach / RPM Output
Entry Monitoring ALL Door Pins
Entry Monitoring Trunk/Hatch Pin
Factory Alarm Trigger Monitoring
Brake Status (foot brake)
Ignition Status

5403.TL4 4.00 2012 Lexus IS 350C (Smart Key)
© 2019-05-31 Directed. All rights reserved.
Pre-installation and application warnings
Firmware notes: 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.
T-Harness
compatible
Keys required for
programming 1Keys required for operation 0
Unless specified otherwise, all connectors are displayed from the wire side, with the exception of the OBDII diagnostic
connector.
Refer to "Vehicle connections" following the wiring diagram.
General notes: This section highlights important information for this specific firmware.
[1] Tach wire is an optional connection required on some remote starters, which do not support a tach signal in D2D.
[2] Locks and trunk release output ONLY required if door locks or trunk are not supported in data.
[3] Autolights connection on required in vehicles with autolights.
[4] The Security Light connection is ONLY required if the security light in the vehicle is ON following its remote start. Not
required on all vehicles.
[5] In the case where a combo security alarm/remote starter is installed and the aftermarket remote is not being used (e.g.
SmartStart), connect the (-) Rearm Input wire in order to arm the combo system when remote starting the vehicle.

6403.TL4 4.00 2012 Lexus IS 350C (Smart Key)
© 2019-05-31 Directed. 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
HS CAN High:
Green, pin 6
HS CAN Low:
White, pin 14
OBDII
Diagnostic Connector
(+) Ignition 1 Output
(+) Accessory Output
(+) Starter 2 Output
(+) 12V Input
HS CAN High: Tan/Black: 3
HS CAN Low: Tan : 4
IMI Interrupt (veh. side): Orange/Red: 10
IMI Data (conn. side): Yellow/Black: 10
IMO Data: Orange/Black: 11
1412
10 42
TX
(+) 12V
(-) Ground
RX
1 8
169
9: Pink: (+) Ignition Input
(-) Parking Lights Output
XKD2D65
If the module programs, but the
vehicle starts and stops following
a remote start command, reverse
the IMI wire.
The Yellow/Black wire needs to
be on the vehicle side.
10 9 87 6 5 4 3 2 1
20191817161514131211
Cut
Cut
IMI Interrupt (conn. side): Yellow/Red: 11
(AC) Tach Output: Violet/White: 5
(+) Ignition 2 Output
(+) Starter 1 Output
(AC) Tach Input
(-) Trunk Release Output
(-) Lock Output
(-) Unlock Output
IMO: White, pin 15
IMI: Pink, pin 14
Headlight Switch
(White conn. at headlights switch)
(-) Parking Lights:
Blue, pin 18
Power ECU
(White conn.
behind glove box)
1
9
26
10
32
40 18
17 1115
34
35
(+) Starter 2:
Violet, pin 15
(+) Starter 1:
Lt. Blue, pin 17
(+) Accessory 1:
Lt. Green, pin 11
(+) Ignition 1:
Lt. green, pin 35
(+) Ignition 2:
Pink, pin 34
12V:
Black/White,
pin 1
Passenger Fuse Box
(White 1-pin conn.)
1
Autolights Off: Yellow: 8
Autolights Off: Orange/Yellow: 9
Autolights:
Orange, pin 19
(-) Lock:
Blue, pin 4
(-) Unlock:
White, pin 13
(-) Trunk Release:
Pink, pin 6
Parking Brake
Switch
(Brown conn.
at parking brake)
1
12 7
23
4550
28
51
29
1322
38
60
6 1
44 39
14
15
White 60-pin conn.
( top white conn. driver kick panel)
Trunk Release Switch
(White conn.
at release switch)
1
6
Drivers Power
Window Switch
(White conn.
in drivers door)
1
11
10
20
4
13
(-) E-Brake Status Input
Only for manual
transmissions
Parking Brake:
Yellow, pin 1
(-) Ground

7403.TL4 4.00 2012 Lexus IS 350C (Smart Key)
© 2019-05-31 Directed. All rights reserved.
Locating components in the vehicle

8403.TL4 4.00 2012 Lexus IS 350C (Smart Key)
© 2019-05-31 Directed. All rights reserved.
Vehicle connections
The connection information listed below is specific to the 2012 Lexus IS 350C (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 data link connector, white 16 pin plug, pin 6 data green
H1/4 Tan (DATA) HS CAN Low data link connector, white 16 pin plug, pin 14 data white
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 Auto Light Interrupt [3] headlight switch, white 20 pin plug, pin 19 cut orange
H1/9 Orange/Yellow Relay N.C. Auto Light Interrupt [3] headlight switch, white 20 pin plug, pin 19 cut orange
H1/10 Orange/Red Relay N.C. Immo Data Interrupt driver kick, white 60 pin plug, pin 14 data pink (IMI)
H1/11 Yellow/Red Relay COM Immo Data Interrupt driver kick, white 60 pin plug, pin 14 data pink (IMI)
H1/12 Brown/Red Relay N.O. No Connection No Connection
H1/13 Red (+) W2W Only - 12 Volt driver dash fuse box, white 1 pin plug (LM), pin 1 + white (80A)
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 (-) W2W Only - E-Brake Output Remote Starter
H2/2 Green/Black (-) Security Light 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 [1] Remote Starter
H2/6 Gray (+) W2W Only - Brake Output Remote Starter
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 (Data) IMI driver kick, white 60 pin plug, pin 14 data pink (IMI)
H2/11 Orange/Black (Data) IMO driver kick, white 60 pin plug, pin 15 data white (IMO)
H2/12 Blue/Red (-) W2W Only - Hood Output Remote Starter
Input 10-pin black connector (H3)
Module Connects To
Conn./Pin Color Description Wire Location (+/-) Wire Color
H3/1 Green No Connection No Connection

9403.TL4 4.00 2012 Lexus IS 350C (Smart Key)
© 2019-05-31 Directed. All rights reserved.
Module Connects To
Conn./Pin Color Description Wire Location (+/-) Wire Color
H3/2 Blue No Connection No Connection
H3/3 Red/White No Connection [2] No Connection
H3/4 White/Violet No Connection No Connection
H3/5 Violet/Black No Connection [3] No Connection
H3/6 White/Black (-) Arm No Connection
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 - Ground When Running (Status) Input Remote Starter
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

10 403.TL4 4.00 2012 Lexus IS 350C (Smart Key)
© 2019-05-31 Directed. 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 driver dash fuse box, white 1 pin plug (LM), pin 1 + white (80A)
Accessory Power Source ECU above glove box, white 40 pin
plug, pin 11
+ lt. green
Factory Alarm Arm power window master switch, white 20 pin plug, pin
5
- blue (driver door key lock)
Factory Alarm Disarm power window master switch, white 20 pin plug, pin
4
double - white (driver door key unlock)
Ignition Power Source ECU above glove box, white 40 pin
plug, pin 35
+ lt. green
Parking Brake parking brake switch, black 1 pin plug, pin 1 - yellow
Parking Lights - headlight switch, white 20 pin plug, pin 18 - blue
Second Ignition Power Source ECU above glove box, white 40 pin
plug, pin 34
+ pink
Second Starter Power Source ECU above glove box, white 40 pin
plug, pin 15
+ violet
Starter Power Source ECU above glove box, white 40 pin
plug, pin 17
+ lt. blue
Trunk/Hatch Release trunk release switch, black 6 pin plug, pin 4 or 6 - pink