2. ELECTRICAL FAILURES
12
2.2.4 Motor
Disconnect the motor wire (green/black) from the sunroof control unit. Dismount the motor. Use a double wire of
sufficient length, connect directly to battery and inspect the motor for proper operation in both directions. This is
accomplished by reversing the connection of the double wire. The motor has an inbuilt thermal cut-out device that
automatically switches the motor off during periods of overload. After a cooling down period the motor will function
properly.
2.2.5 Sunroof control unit
Testing is covered in the electric trouble shooting guide. The following failures could be the result of a defective
Sunroof Control Unit (SCU).
•
Auto close function inoperative.
•
Soft touch operation inoperative.
•
Comfort position can not be programmed.
•
4 step down option inoperative.
•
One way closing defective.
After replacing the SCU, the SCU must then be calibrated. Proceed with the trouble shooting table if the problem is
not solved by the calibration.
2.2.6 Calibration of the SCU:
The first time the SCU is connected to the power supply, the maximum vent position must be defined. Proceed as
follows:
1. Turn on the ignition.
2. Open the panel to the maximum vent position (until it reaches the mechanical stop) (continuous control
of the switch). The maximum vent position is now stored in the SCU and all electrical features are
available.
3. To complete the calibration, the panel must be moved to the fully open position by soft touch operation.
Summary of Contents for HOLLANDIA 700 - 20 Series
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