[AKA SIR]

I am in the process of installing an alarm in my Supra. Can someone direct me to where the main alarm wires are...

+12 when all doors open
ground when hood is open (does the MKIV have this?)
ground when all doors open
and any others

I think I have found all these but before I install everything I want to be sure.

Thanks in advance,
Jeff

 

[IntenseTT]

Wiring

I work at an installation bay in my area. I have the software here on my home PC that we use in the bay to find out wiring on vehicles (TechSoft Vehicle Database 5.40). Maybe this will help you out.

ITEM | WIRE COLOR |POL| WIRE LOCATION |
| 12V|white/red |+ |ignition harness |
| STARTER|black/white |+ |ignition harness |
| IGNITION|black/yellow |+ |ignition harness |
| SECOND IGNITION|black/orange |+ |ignition harness |
| ACCESSORY|pink/blue |+ |ignition harness |
| POWER LOCK|green/yellow |- |passenger kick panel |
| POWER UNLOCK|white |- |passenger kick panel |
| PARKING LIGHTS +|green | |drivers kick panel *2 |
| PARKING LIGHTS -|green | |steering column |
| HEADLIGHTS|red |- |steering column |
| DOOR TRIGGER|red/black |- |drivers kick panel |
| TRUNK/HATCH PIN|tied in with door | | |
| HOOD PIN|purple/red |- |theft ECU *3 |
|TRNK/HTCH RELEASE| | | |
| FCTRY ALARM ARM|arms with lock | | |
|FCTRY ALRM DISARM|disarms with unlock | | |
| DISARM NO UNLOCK|white or green |- |drivers kick panel |
| TACHOMETER|black or blk/wht *1 | |igniter *1 |
| BRAKE WIRE|green/white |+ |plug in left kick |
| HORN TRIGGER|blue/red |- |steering column |
| WIPERS|blue/red |+ |steering column |
| LF WINDOW UP/DN|red/wht - grn/yel |A |in drivers door |
| RF WINDOW UP/DN|red/blu - grn/wht |A |in drivers door |


Notes:
*1 On the non turbo models the tach wire is black. On the turbo models the tach wire is black/white. Both are located at the igniter located on the drivers side strut tower.
*2 Bottom of fuse box in a white plug.
*3 The theft ECU and door lock ECU are built together in one module. the module is located high in the passenger kick panel.

 

[IntenseTT]

I forgot to mention that the diagram is for a 94 Supra. I am not sure if the wiring would be different for different years since I havent gone through and looked at all of the Supra digrams, but I can post your year up here just in case if you let me know which year it is. Later