Car Alarm

Installing Car Alarm in 2000 Honda Accord.


Alarm came with:
1. Module with built in shock sensor
2. 4-pin Relay
3. Horn
4. LED Light
5. Wiring loom
6. Two Remotes

Preparation
I decided to make all wiring one colour and installing additional Relay for better protection.


Tools and material required
1. Alarm
2. Soldering Iron
3. Insulation Tape
4. Solder
5. Multimeter and check-light
6. Knife
7. Set of screw drivers
8. Heat shrink
9. 2 x Automotive relay
10. Solder sucker

the first thing I got rid of the plugs on alarm unit.

my next step was to solder same colored wires to the board and label them.

now Alarm is ready to be installed into the car

WARNING: remove all fuses from alarm wiring harness to reduce risk of short circuit during installation process 

First step is find BAT+ and earth. with key off probe wires that go to EGN Switch. BAT+ should output 12V with engine off key out. Earth could be any metal surface of the chassis or dash frame.

next step is to find negative door trigger. normally it can be taken from dome light, because dome light in most cases is connected to all 4 doors or front 2.

then trace two wires for indicators. i left indicator flashing and probed wires that were coming out of indicator switch

Then one wire to IGN ON. Probe IGN switch with IGN ON until find live wire. make sure there is no voltage when key is OFF.

I had to configure the wiring to suit my application for locking and unlocking system, since the car uses negative trigger to lock and unlock the doors

Honda Accord has lock and unlock switch on the driver's door, so I traced two wires that if you apply negative to one- the doors would lock and to other- they would unlock. So I connected negative trigger wires coming from alarm unit to the door locking relay.

next step is to install immobiliser relay: find starter wire from IGN switch and cut it in the middle. Pin 30 and 85 will go to starter cable on the IGN switch side, 87 on other side of the Starter wire and 86 to Alarm Unit

Time to install the siren under the bonnet and connect it to the Alarm unit

when job is finished and it's a time to reinstall fuses and try the alarm

when check is finish and everything works fine, next step is reprogram alarm (change flashing indicators when door is open):

1. get inside of the car and close the door

2. switch IGN ON (but do not start the engine)

3. turn IGN SW to Acc and back to IGN ON

4. do it 12 times and leave IGN SW ON

5. siren will go off 3 times

6. turn it back to Acc and to ON again

7. siren goes of 2 times

8. Ign key to Acc and to ON

9. siren goes off 3 times

10. IGN key to Acc and to ON

11. siren goes off 4 times

12. press unlock to disable indicator blinking while doors are open

13. IGN key to OFF and wait for 5 seconds

Alarm is ready