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3. If there are DPF-related codes stored in DDE, the screen displays as
below. Select OK to continue or Cancel to exit this function.
Figure 5-29 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 them.
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