9-5 Sport Wagon (9600) L4-2.3L Turbo (B235) (2003)
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Engine Running
As soon as the engine has started, the control module regulates all the functions automatically as long as no manual functions have been selected or user
programming performed.
Ignition OFF
When the ignition is turned off, the display goes out: no buttons work, all the stepping motors are turned off and air recirculation off is selected after 10
seconds. Diagnostics communication remains active if it was active when the ignition was turned off, but it cannot be restarted.
The control module processor is active for a further 10 minutes. If the ignition is turned on within these 10 minutes, the control module will retain any
manual selections made when the car was last driven. After 10 minutes, the control module starts in AUTO or user programming mode.
If the power supply drops below 9.5 V and the starter motor is not turning, the display will show OFF until the voltage exceeds 10 V.
Programming
A number of parameters must be programmed when changing the ACC unit.
Diagnostics
In the event of an internal control module malfunction, diagnostic trouble code B1605 is generated and 01 is displayed instead of right-hand temperature
when calibrating.
Control Module Power Supply
