99
4. The tool shows a list of particle filter test. Select the corresponding
number button to perform the desired test
[1] [2] [3] [4] [5]
.
[1]
Visual Inspection of Engine Oil
[2]
Visual Inspection of Particulate Filter
[3]
Function Check or Swirl Flaps
[4]
Exhaust Backpressure Test
[5]
Actual/Target Value Check-Mass Air Flow Sensor
Immobilizer (IMMO) Service
An immobilizer is an anti-
theft mechanism that prevents an automobile’s
engine from starting unless the correct ignition key or other device is present.
This device prevents thieves from starting the car by a method known as hot
wiring. Most new vehicles have an immobilizer as standard equipment. An
important advantage of this system is that it doe
sn’t require the car owner to
activate it; it operates automatically. An immobilizer is considered as
providing much more effective anti-theft protection than an audible alarm
alone; many auto insurance companies offer lower rates for vehicles that are
equipped with an immobilizer.
As an anti-theft device, an immobilizer disables one of the systems needed
to start a car's engine, usually the fuel supply or the ignition. This is
accomplished by radio frequency identification between a transponder in the
ignition key and a device called a radio frequency reader in the steering
Figure 6-29
Sample Codes Screen
