Porsche 1989 944 S2, Workshop Manual

Page: 22 / 167

03
Maintenance, Self-diagnosis 944
Initiale the air-conditioning control terminal
41
testing step.
Display:
Switch on the air-conditioning system.
The LED must go off and the display will
appear after approx. 3 s.
Display:
If this is not the case, an error has occurred
in
the area of the air-conditioning system's
wiring.
In the event of an error, check with reference
to the circuit diagram.
Do not switch off the air-conditioning system.
Initiate the air-conditioning control terminal
40
testing step.
Display:
Switch off the air conditioning system.
The LED must go off and the display will
appear after approx. 3 s.
Display:
If this is not the case, an error has occurred
in
the area of the air-conditioning system's
wiring.
In the even! of an error, check with reference
to the circuit diagram.
03 - 10 Actuator and input signal function checking
Printed in Germany - XVI, 1987