Vehicle Connections - Directechs DIRECTED DS3+ Installation Manual

Vehicle connections

The connection information listed below is specific to the 2018 Lexus RX 450h (Smart Key). Refer to "Pre-installation and application warnings" for a list of important notes.
Data harness, 8-pin white connector (H1)
Module
Conn./Pin Color Description
H1/1 Tan (Data) HS CAN Low
H1/2 Tan/Black (Data) HS CAN High
H1/3 Orange/Brown No Connection
H1/4 Orange/Green No Connection
H1/5 Lt. Green No Connection
H1/6 Violet/Brown No Connection
H1/7 Orange/Black No Connection
H1/8 Yellow/Black No Connection
Analog input/output harness, 22-pin white connector (H2)
Module
Conn./Pin Color Description
H2/1 Lt. Green/Black No Connection
H2/2 Blue/White
(-) Ground When Armed (GWA) Output
H2/3 Dk. Green/Black (-) Lock Output
H2/4 Red/White No Connection
H2/5 Brown/Black (-) Horn Output
H2/6 Brown/White No Connection
H2/7 White (+) No Connection
H2/8 Violet/Black No Connection
H2/9 Dk. Blue/Black (-) Unlock Output
H2/10 Lt. Blue/Black
(-) PTS Output
H2/11 Brown/Red
(+) Siren Output
H2/12 Pink No Connection
H2/13 Violet No Connection
H2/14 Brown No Connection
H2/15 White/Blue No Connection
H2/16 Red/Blue No Connection
11 933.TL8 2.32.195.3 2018 Lexus RX 450h (Smart Key)
©2022 VOXX•DEI LLC. All rights reserved.
Connects To
Wire Location
Network Gateway ECU behind glove box, black 24 pin plug, pin 21
Network Gateway ECU behind glove box, black 24 pin plug, pin 6
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
Connects To
Wire Location
No Connection
[5] Starter:
Hybrid Vehicle Control ECU right of dash fuse box, gray 35 pin plug,
pin 9
Ignition:
Dash Fuse Box, white 32 pin plug (2C), pin 12
Must use a relay.
Must use a diode.
Body ECU on dash fuse box, white 30 pin plug, pin 29
No Connection
dash fuse box, white 32 pin plug (2C), pin 27
No Connection
No Connection
No Connection
Body ECU on dash fuse box, white 30 pin plug, pin 2
[3] Power Start Stop Switch, black 10 pin plug, pin 5
[2] Only required when enabling the security features during module
flashing.
No Connection
No Connection
No Connection
No Connection
No Connection
(+/-) Wire Color Connection
Data White Mandatory
Data Lt. Blue Mandatory
(+/-) Wire Color Connection
+ Lt. Green Security Only
+ Yellow
- Pink (driver door key lock) Mandatory
- green Optional
Doubl Violet (driver door key Mandatory
e - unlock)
- Pink Remote Start
Only
Security Only