my friend has a 2001 lexus is300 and is going to install a car alarm. he needs a wiring diagram for his car..the dealership wants like 85 bucks for the maintinance book..any one know where he can find a wiring diagram for his car??

 

go to a best buy and ask a tech to get one for you

 

they wont give you one. i have a account with dirrectech.com ill pm you a link with the info you need.

 

12volts) white & white/red + ignition harness
Starter) black/white + ignition harness
Second Starter)
Ignition ) black/red + ignition harness
Second Ignition ) blue/red + ignition harness
Third Ignition)
Accessory) red + ignition harness
Second Accessory)
Keysense)
Power Lock) see direct fax
Power Unlock) document #1070
Lock Motor) green/yellow body ECU
Unlock Motor) blue/black body ECU
Parking Lights+) green driver kick, harness to rear
Parking Lights-) red headlight switch
Hazards)
Turn Signal(L)
Turn Signal(R)
Reverse Light)
Door Trigger) - body ECU
Dome Supervision) use door trigger
Trunk/Hatch Pin) red/yellow - driver kick, harness to rear)
Hood Pin) blue - alarm module
Trunk/Hatch Release) blue/white 5wi body ECU
Power Sliding Door)
Factory Alarm) Arm arms with lock
Factory Alarm Disarm) disarms with unlock
Disarm No Unlock) black/yellow - steering column
Tachometer) black igniter
Wait to start)
Brake Wire) green/white + brake pedal switch
Parking Brake)
Horn Trigger) green/white - steering column
Memory Seat 1)
Memory Seat 2)
Memory Seat 3)


Immobilizer Bypass Module



MAKE : LEXUS | MODEL : IS 300 | YEAR : 2001


hopefully that will help, if you know how to read it than that is all the info he will need.