Here's the wring.
LEXUS / RX 400H / 2006 / Remote Start
12volts red (30A) + ignition switch, 8 pin plug, pin 7
Starter blue + ignition switch, 8 pin plug, pin 8
Second Starter N/A
Ignition purple + ignition switch, 8 pin plug, pin 6
Second Ignition green + ignition switch, 8 pin plug, pin 4
Third Ignition N/A
Accessory brown or gray + ignition switch, 8 pin plug, pin 3
Second Accessory N/A
Keysense black - ign key cylinder or BECU, 26 pin plug, pin 21
Notes: Using the status output to trigger this wire during remote start will disarm the factory alarm without unlocking the doors.
The BECU (Body ECU) is attached to the back of the fuse box under the driver side dash.
Power Lock purple - fuse box, top right, 12 pin plug, pin 3
Notes: This wire is only needed if the door locks do not function when the vehicle is running. All other times just use the factory alarm arm wire. Meter this wire while using the passenger door lock switch.
Power Unlock brown - fuse box, top right, 12 pin plug, pin 4
Notes: This wire is only needed if the door locks do not function when the vehicle is running. All other times just use the factory alarm disarm wire. Meter this wire while using the passenger door lock switch.
Lock Motor blue to red 5 wire driver kick, 20 pin plug, pin 1
Unlock Motor red to white 5 wire driver kick, 20 pin plug, pin 11
Parking Lights+ lt. green + fuse box, bottom, 12 pin plug, pin 8
Parking Lights- orange - headlight switch or BECU, 26 pin plug, pin 17
Notes: The BECU (Body ECU) is attached to the back of the fuse box under the driver side dash.
Hazards purple to yellow - hazard light switch or BECU, 26 pin plug, pin 2
Notes: The BECU (Body ECU) is attached to the back of the fuse box under the driver side dash.
Turn Signal(L) white + fuse box, bottom, 12 pin plug, pin 12
Turn Signal(R) pink + fuse box, left side, 12 pin plug, pin 9
Reverse Light WHITE/ blue to pink + driver kick, blue 12 pin plug, pin 1
Door Trigger black to blue - driver kick or BECU, 16 pin plug, pin 14
Notes: The BECU (Body ECU) is attached to the back of the fuse box under the driver side dash.
Dome Supervision lt. blue - fuse box, right side, 12 pin plug, pin 5
Trunk/Hatch Pin brown or pink - driver kick or BECU, 28 pin plug, pin 25
Notes: The BECU (Body ECU) is attached to the back of the fuse box under the driver side dash.
Hood Pin black to red - N.C. hood pin switch or BECU, 10 pin plug, pin 10
Notes: The BECU (Body ECU) is attached to the back of the fuse box under the driver side dash.
Also found in the driver kick, gray 18 pin plug, pin 3.
Trunk/Hatch Release gray to white - driver kick or BECU, 28 pin plug, pin 3
Notes: Meter this wire while opening the hatch from the handle on the rear hatch. The BECU (Body ECU) is attached to the back of the fuse box under the driver side dash.
On vehicles with the power back door, the open/close wire is purple (-) at the switch on the dash or at the BECU, 28 pin plug, pin 2.
Power Sliding Door N/A
Factory Alarm Arm brown - power window master switch, 20 pin plug, pin 4
Notes: Meter this wire while turning the key in the driver door key cylinder. This wire will also lock the doors.
Factory Alarm Disarm gray (double pulse) - power window master switch, 20 pin plug, pin 14
Notes: Meter this wire while turning the key in the driver door key cylinder. This wire will also unlock the doors.
Disarm No Unlock use key sense wire
Tachometer program engine checking off
Wait to start N/A
Brake Wire blue + switch or fuse box, bottom, 12 pin plug, pin 3
Parking Brake black - switch or fuse box, left side, 14 pin plug, pin 14
Horn Trigger white to red - switch or fuse box, middle, 16 pin plug, pin 11
Memory Seat 1 green - memory seat switch in door
Memory Seat 2 purple - memory seat switch in door
Memory Seat 3 N/A -
Interface Module: Category:
Immobilizer Bypass Required: Yes
Type: Transponder