1998 Volvo S70 no cool air or warm heat

NOTE : A new control module must always be programmed for left or right-hand drive before it will work. Damper motors, etc cannot be self-adjusted until programming is complete.

If a used control module is fitted programming for left or right-hand drive must be checked to ensure that it corresponds to the car

New control modules are set up for petrol engines with no dust filter. Re-program these parameters if they do not correspond to those of the car into which it is being fitted.

Before the control module is programmed the two green indicating diodes will flash. If the A/C is off and recirculation is selected the indicating diodes remain lit.