9288 Additional Features when Equipped with Software H 03, H 04

SOFTWARE NO.: H 03, H 04
- H 03 = Heating regulator
- H 04 = Heating and air conditioning regulator

Diagnosis was extended by additional features:
- Drive link activation
- Input signals
- Actual values

The following drive links can now be activated:
- Left mixing flap
- Right mixing flap
- Defroster flap
- Footwell flaps
- Fresh air flaps
- Rear blower
- Left heater blower
- Right heater blower
- Oil cooler blower
- Condenser blower (only H 04)
- Air-conditioning test (only H 04)

NOTE:
Operation of the drive motors for the flaps and the blower motor, respectively, is displayed via a bar graph (except for the heater blowers; in this case, operation is indicated by the operating noise). In case of the drive motors, it is important for the bar graph display to change, i.e. the flaps must be operated from the open to closed and from the hot to cold positions, respectively, and vice versa.

In case of the air conditioning test, the evaporator temperature must drop below 5°C (41°F). If testing is not possible, check operation of the left and right mixing flaps and of the condenser blower.

The following input signals may be checked:
- Footwell flap
- Defroster flap
- Blower potentiometer
- Temperature potentiometer
- Air circulation switch
- Defroster switch
- AC switch (only HO 4)

NOTE:
Operation of the potentiometers is displayed via a bar graph.

Modify position of potentiometers: the bar graph must increase or decrease respectively.

Operation of the switches is indicated by the opened or closed position;
^ Switch not actuated: open
^ Switch actuated: closed

The following actual values may be displayed:
- Voltage Term. X
- Inside temperature
- Rear temperature
- Mixing chamber temperature, left
- Mixing chamber temperature, right
- Oil temperature
- Evaporator temperature (only H0 4)