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" .