Electrical Trouble Shooting Table - Webasto HOLLANDIA 700 - 40 Series Service Manual

2. ELECTRICAL FAILURES

2.2.7 Electrical trouble shooting table

Test Sun
Roof,
Ignition Switch
Panel moves
when holding
Does SCU
switch?
make
no
a click sound?
ye
ye
In both
directions?
no
ye
Tilting and
Motor operating
sliding
correctly
functional
no
?
co
no
ye
properly?
Soft touch
operation
possible?
n
ye
Power on red /
Is the auto close
black wire when
function
ignition is
n
working
switched off
o
ye ye
Comfort
position
n
working?
o
ye
One way closing
working?
no
ye
Motor stops,
SCU clicks in
max. slide and
no
max tilt
ye
Sun roof
O.K.
13
SCU powerline
SCU: red,red/black
measures 12v
and green wires
n measure12V?
no
o
ye
Red/black
Fuse10 A O.K?
powerline
(chapter 2.2.1.)
12V when body
no
grounded?
ye
no
Switch O.K.?
(chapter 2.2.3.)
ye
ye
Wire harness
Re-program
Preset stops
no
yes
when body
no
grounded?
no
ye
O.K.?
no
yes