SAAB WIS ONLINE

ICE (Integrated Central Electronics)

ICE (Integrated Central Electronics)


ICE (Integrated Central Electronics) is a programmable electronic unit which controls a number of relays as well as sending and receiving information to and from different components.

Signals controlling the following lighting system functions go out from ICE:


Main beam

Dipped beam

Extra fog lights

Interior lighting and reading lamps

Direction indicators, hazard flashers

Monitoring of rear parking lights and brake lights

The following lighting system components send information to ICE:


Stalk switch for lights

Dipswitch

Direction indicator switch

Hazard flasher switch

Switch for extra fog lights

Brake-light switch

The following information is sent out from ICE:

Rear or brake light bulb failure to the auxiliary instrument panel

The sound to be used for the direction indicators


If a bulb at the rear fails, ICE sends a signal to the auxiliary instrument panel which grounds the "BULB FAILURE" warning lamp in main instrument panel 1.

If a bulb at the front fails, the filament monitor grounds the lamp in the main instrument panel via the auxiliary instrument panel.


If the car is equipped with auxiliary instrument panel 2 or 3, ICE and the filament monitor send a signal to the auxiliary instrument panel, which lights up a message on the display:



BRAKE LIGHT FAILED

FRONT LAMP FAILED

REAR LAMP FAILED



Simultaneously, the auxiliary instrument panel lights up the INFO DISPL lamp in main instrument panel 2.

ICE also controls a "Follow me home" function, i.e. if the headlamp flasher is activated after the door has been opened, dipped beams will remain on for about half a minute.

For more information on ICE and fault diagnosis in the lighting system, refer to Service Manual 3:5 "Electrical system, instruments" .