4.Once the resistor value(s) is determined, refer to the wring diagram for proper wiring.
To ensure an accurate resistance reading, do not touch the resistor or leads during testing.
Single wire, negative lock, negative unlock.
IMPORTANT:
Single-resistor style: if one resistor is used in the door lock switch/key cylinder, the wire will pulse
ground in one direction and resistance to ground when operated in the opposite direction.
Two resistor type: if two resistors are used in the factory door lock switch/key cylinder, the
switch/key cylinder will read resistance to ground in both directions.
Type H: Negative (-) multiplex. Same as Type G system, but uses (-) pulse instead.
1.Cut the output ire from the door lock switch/key cylinder in half;
Two potential (resistor may require) negative trigger.
2.Test with the meter from the switch side of the cut door lock switch/key cylinder wire to a reliable
ground source. Some good ground references are the ground input source to the door lock
switch/key cylinder, or the battery ground.
Single wire negative central locking
3.Operate the door lock switch/key cylinder in both directions to determine the resistor values. If the
multi-meter displays zero resistance in one direction, no resistor is need for that direction.
Determining the proper resistor values: to determine the resistor values, the door lock
switch/key cylinder must be isolated from the factory door lock system. For testing, use a calibrated
digital multi-meter that is set to ohms.
LOCK relay
fused (+) 12V
white/black lock
wire (-) from Ec003
87
86
85
87a
30
not used
87
86
85
87a
30
UNLOCK relay
fused (+) 12V
white unlock
wire (-) from Ec003
not used
Door lock switch/
key cylinder
chassis ground
Lock Unlock
negative lock output to car
via resistor (if required)
negative unlock output to car
via resistor (if required)
BCM
Manual for Releasing Steering Lock
turn the key to
“ON” position.
Inside the lock
So that the steering lock can be turn round. Then cut and keep 1mm
length of the copied key outside of the lock. See the picture:
Cut the key
Outside the lock
Inside the lock
Cut & keep 1mm outside
Use a screw driver and push it into the hole of the ignition
cylinder (see photo on the left), turn the ignition key to
ACC position, then pull out the key with force will take out
the ignition cylinder.Then remove wires from ignition
switch and put the push start button over the empty key
cylinder slot.
Method 2:
Only a qualified staff can do this as there is risk to lock
the steering lock again if the operation is not correct. If
you are not a qualified staff, we recommend you to use
the method 1 to release the steering lock.
Important:
push here
then pull out
the cylinder
1. Please check whether there is steering lock in your vehicle or not, if yes, follow with the next step.
3. When finish matched, put the copied key blade into the ignition cylinder of car, as the picture shows:
2. Copy a key blade with your factory original key blade and match them so that the copied key blade can start
the car.
5. Attention: If there is chip immobilizer in factory
original key or remote control, need to take out the
chip immobilizer and hide it inside or near the
ignition cylinder. Please refer to installation for chip
immobilizer. If you can’t find the chip by yourself.
Just hide the original key or remote control in or
near the ignition cylinder. (Please remember to take
out the battery of the remote if you do so).
Stick on
the lock
4. Stick the push start button on the lock.
(That is the reason for cutting the key.)
6.Everything finish like
the picture:
7. If you don’t want to cut the key
for releasing the steering lock, you
can drill a hole in the car which
near the steering and install the
push start button .Like the picture,
but it will not convenient for you
as you need to use the original
key to release the steering lock
every time you start the car.
8. Un-plug the
factory ignition
wire harness to
avoid which
consume the
vehicle battery
power.
-21-
© EASYGUARD Electronics. All right reserved.
-22-
© EASYGUARD Electronics. All right reserved.
To Next Page
Loading...