63
Figure 5-28
Sample Codes Screen
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
doesn’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 column. When the key is placed in the ignition, the
transponder sends a signal with a unique identification code to the reader, which relays
it to a receiver in the vehicle's computer control module. If the code is correct, the
computer allows the fuel supply and ignition systems to operate and start the car. If the
code is incorrect or absent, the computer disables the system, and the car will be unable
to start until the correct key is placed in the ignition.
The IMMO service of MX808TS can disable a lost vehicle keys and program the
replacement key fob. One or more replacement key fobs can be programmed.
