87D-38
MR-413-X44-87D000$649_eng.mif
V1
87D
ELECTRIC WINDOWS - SUNROOF
Electric sunroof: Operating diagram
ELECTRIC SUNROOF
1 - Relay/fuse box
2 - UCH
3 - ABS computer
4 - Sunroof opening and closing control
5 - Sunroof computer
6 - Sunroof electric motor
A - Sunroof computer supply
B - Authorisation to operate
C - Vehicle speed
D - Opening or closing request
E - Sunroof motor electric control
1
A
56 2
B
E
3
C
4
D
New Twingo
MR-413-X44-87D000$649_eng.mif
87D-47
MR-413-X44-87D000$944_eng.mif
V1
New TwingoELECTRIC WINDOWS - SUNROOF
Electric sunroof - Fault finding chart87D
ALP 1
CONTINUED 4
Move the sunroof control button into the tilt
position and press and hold the centre of the
control.
Can the relay clicking noise in the computer
be heard?
YES
Connect a multimeter into the voltmeter position
between connections 52AA and 52AB of
component 1579 (directly on the connector).
Is there a voltage of 12 V?
YES
Connect a multimeter to the voltmeter position
between connections 52Y and 52Z of
component 1578, and vary the position of the
sunroof switch button between opening
positions 1, 2 or 3.
Is there a voltage of 12 V?
YES
Replace the sunroof motor (see MR 411
mechanical, 87D, Electric windows - sunroof,
Electric sunroof motor: Removal - Refitting).
NOReplace the sunroof computer (see MR 411
mechanical, 87D, Electric windows -
sunroof, Electric sunroof computer:
Removal - Refitting).
NOReplace the sunroof computer (see MR 411
mechanical, 87D, Electric windows -
sunroof, Electric sunroof computer:
Removal - Refitting).
NO D
