Vehicle Connections - Directechs DB3 Installation Manual

Vehicle connections

The connection information listed below is specific to the 2019 Lexus GX 460 (Smart Key). Refer to "Pre-installation and application warnings" for a list of important notes.
Data 14-pin blue connector (H1)
Module
Conn./Pin Color
H1/1 Light Green
H1/2 Violet/Yellow
H1/3 Tan/Black
H1/4 Tan
H1/5 Orange/Green
H1/6 Orange/Brown
H1/7 Brown
H1/8 Yellow
H1/9 Orange/Yellow
H1/10 Orange/Red
H1/11 Yellow/Red
H1/12 Brown/Red
H1/13 Red
H1/14 Black
Output 12-pin red connector (H2)
Module
Conn./Pin Color
H2/1 Black/White
H2/2 Green/Black
H2/3 Green/White
H2/4 Red/Black
H2/5 Violet/White
H2/6 Gray
H2/7 Gray/Black
H2/8 Violet/Green
H2/9 Violet/Brown
H2/10 Yellow/Black
H2/11 Orange/Black
H2/12 Blue/Red
Input 10-pin black connector (H3)
Module
Conn./Pin Color
H3/1 Green
9 403.TL2 4.15 2019 Lexus GX 460 (Smart Key)
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Description
No Connection
No Connection
(DATA) HS CAN High
(DATA) HS CAN Low
No Connection
No Connection
Relay N.O. No Connection
Relay COM No Connection
Relay N.C. No Connection
Relay N.C. No Connection
Relay COM. (-) SLP Output
Relay N.O. (-) Ground
(+) 12 Volt Input
(-) Ground
Description
No Connection
(-) PTS Output [1]
No Connection
(-) Pk Light Output
No Connection
No Connection
No Connection
No Connection
No Connection
(Data) Immo Data 1
(Data) Immo Data 2
No Connection
Description
No Connection
Connects To
Wire Location
No Connection
No Connection
OBD-Data Link Connector, white 16 pin plug, pin 6
OBD-Data Link Connector, white 16 pin plug, pin 14
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
Steering Lock Actuator on steering column, black 7 pin plug, pin 4
OBD-Data Link Connector, white 16 pin plug, pin 16
Connects To
Wire Location
No Connection
Engine Start Stop Switch, black 14 pin plug, pin 7
No Connection
Body ECU on dash fuse box, white 30 pin plug, pin 30
No Connection
No Connection
No Connection
No Connection
No Connection
Body ECU on dash fuse box, white 30 pin plug, pin 4
Body ECU on dash fuse box, white 30 pin plug, pin 16
No Connection
Connects To
Wire Location
No Connection
(+/-) Wire Color
Data Red
Data White
- Lt. Blue
(chassis ground)
+ Gray (7.5A)
(chassis ground)
(+/-) Wire Color
- Lt. Green
- White
Data Red (BRX)
Data Green (BTX)
(+/-) Wire Color