2 wire diagrams. which to use?

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=7045
Printed Date: August 21, 2025 at 3:39 PM

Topic: 2 wire diagrams. which to use?

Posted By: Dereck21288
Subject: 2 wire diagrams. which to use?
Date Posted: December 23, 2002 at 8:53 AM

I got a wiring diagram from The12volt.com for my 93 Corolla and it doesn't even mention a second iginiton wire for a remote start. I got another from Designtech. com and it has a second iginiton wire. What to use?

Replies:

Posted By: Phatmex
Date Posted: December 23, 2002 at 10:08 AM

What else is different besides that?

Posted By: the12volt
Date Posted: December 23, 2002 at 10:21 AM

As with any wiring information you get from anyone, check each wire with your meter before making any connections.

Posted By: 10nesne1
Date Posted: December 23, 2002 at 10:22 AM

Are you installing a Remote starter or not? If you do than you will have to connect both Ignition wire to the starter in order for it to work properly. If you are install an alarm system than you will have to connect to the true ignition wire. True igntion means when you start the vehicle and the voltage doesn't drop or stay on.

Good luck

Posted By: Dereck21288
Date Posted: December 23, 2002 at 12:57 PM

Yes, I am trying to install a remote starter. Heres the Wire Diagram from the 12volt....

https://www.the12volt.com/installbay/detail.asp?info=alarm&year=1993&make=Toyota&model=Corolla&ID=18977&type=Alarm

Heres the diagram form the Remote starters(desingtech) website.....

Function	DTI Color	Vehicle Color	Location
Start:	Yellow	BLACK/ WHITE	IGNITION SWITCH HARNESS
Ignition #1:	Blue	BLACK/ ORANGE	IGNITION SWITCH HARNESS
Ignition #2:	Green	BLACK / YELLOW	IGNITION SWITCH HARNESS
Ignition #3:	Wht/Blk	N/A
Accessory:	White	BLUE/RED	IGNITION SWITCH HARNESS
Brake Light:	Orange	GREEN / WHITE (+)	SWITCH ON BRACKET ABOVE BRAKE PEDAL
Tach Signal:	Green	BLACK	DIAGNOSTIC CONNECTOR *
Parking Lights:	Yellow	GREEN	AT FUSE/JUNCTION BOX "TAIL" FUSE
Headlights:	Yellow	RED / WHITE	(-) AT HEADLIGHT SWITCH
OEM Alarm Disarm:	Brn/Wht	BLUE/RED (-)	DRIVER KICK PANEL
OEM Alarm Arm:	n/a	BLUE/BLACK (-)	DRIVER KICK PANEL
Diesel Glow Plug:	RED / Black
Clutch Bypass Wire:	n/a
Notes:	* Diagnostic Plug Located On Driver Strut Tower. BLACK Wire Marked IG-. WHAT SHOULD I USE?

Posted By: the12volt
Date Posted: December 23, 2002 at 1:07 PM

The only differences between the two are we show the accessory wire to be BLACK / YELLOW and they have it listed as Ignition 2 and we show the factory disarm wire to be a different color than theirs besides the other additional information we each list.

It's possible that both are correct and one is based on a mid year model change. Again, always use your meter to verify each of these wires before you make any connections.