Testing Electrical Components; Fuse; Wire Harness Sunroof Control (Scu) Unit To Battery; Wire Harness Sunroof Control Unit (Scu) To Control Panel - Webasto HOLLANDIA 700 - 40 Series Service Manual

2. ELECTRICAL FAILURES
2.2

Testing electrical components

Make sure that during the test of electrical components the HOLLANDIA 700 unit is connected to a 12 to 14V power
source with a minimum of 8 amperes.
If the unit is installed in a car, the battery needs to be connected and operable. During testing the ignition/accessory
switch must be on. This test can be accomplished with a voltage meter or test light.
Cable harness and motor inspection requires the removal of the headliner.

2.2.1 Fuse

Inspect and make sure that the fuse is not open.
2.2.2 Wire harness Sunroof Control Unit to battery
Check if the power supply on both the red and red/black wires is correct? Inspect for broken/damaged wires. Inspect
for proper connection to the sunroof control unit. The wire harness connector is numbered to aid in proper
installation:
Connector
Wire number 1 (red)
Wire number 2 (green)
Wire number 3 (red / black)
2.2.3 Wire harness Sunroof Control Unit to Control panel
Inspect for sufficient power supply to the HOLLANDIA 700 control panel, accomplished by using a voltage meter on
the connector pins.
Measurements with battery voltage of 13 V:
Connector
Wire 1 (red)
Wire 2
Wire 3
Wire 4
Wire 5
Wire 6
Power on wire if ignition is off
12 V
Ground
0 V
Power on wire if ignition is off
10.9 V
10.9 V
0 V
0 V
0 V
0 V
Power on wire if ignition is on
12 V
Ground
12 V
Power on wire if ignition is on
13 V
13 V
0 V
0 V
0 V
0.6 V
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