Immobilizer

Immobilizer diagnostic trouble codes are often found under what area?

Either Body-related "B" codes or Chassis related "C" codes

The security dash lamp comes on for 2 to 5 seconds and goes out. This indicates what condition?

Normal security light operation

A typical Ford immobilizer system is called ________.

PATS

What is the purpose and function of an immobilizer system?

Prevents the vehicle from starting or running if the correct key is not used

A typical Chrysler immobilizer system is called ________.

SKIS

What does the battery in the key fob power?

The remote keyless entry (RKE) transmitter

What will happen if a fault occurs in the immobilizer system when the engine is running?

The security light will come on but the engine will not be shut off

Diagnosing an immobilizer requires the use of ________ and accurate service information.

a scan tool

The immobilizer module communicates with the PCM using ________.

a serial data line

The vehicle immobilizer systems works by disabling the vehicle ________ system in case of a theft attempt.

fuel or ignition

A General Motors Passkey III system has the transponder located in the ________.

head of the key

The key or key fob contains a(n) ________ that transmits the security code.

transponder

Some Ford security system keys can be programmed using ________.

two programmed keys

If an immobilizer-related fault occurs, what symbol is likely to be displayed on the dash?

A padlock symbol

What can occur if the immobilizer system is not working as designed?

Any of these: The engine cranks but does not start No crank condition (the starter does not operate) The engine starts but then almost immediately stalls

An immobilizer fault may occur if the ________.

Any of these: key is exposed to any kind of magnetic field key is dropped onto a hard surface key gets wet

How is data transmitted between the key and the steering column (lock cylinder)?

By inductive coupling

To prevent an unauthorized scanning of the vehicle security ID number, the code ________ with each use of the system

changes

A shock sensor is part of the vehicle ________ system.

content theft protection