Mitsubishi Lancer Evolution VI. Manual - part 84

BODY  – 

Sunroof

42-10

OK

Check trouble symptoms.

NG

Check the harness wire between igni-
tion switch (IG1) and sunroof-ECU, and
repair if necessary.

(2) NG

Check the following connectors:
B-44, B-76, B-73, D-10

NG

Repair

OK

Check trouble symptoms.

NG

Check the harness wire between fusible
link No.1 and sunroof-ECU, and repair
if necessary.

(3) NG

Check the following connectors:
B-44, D-10

NG

Repair

OK

Check trouble symptoms.

NG

Check the harness wire between sunroof-ECU and
the earth, and repair if necessary.

OK

Check sunroof switch continuity (Refer to P.42-17.)

NG

Repair

OK

Measure at the sunroof-ECU connector D-10.

D

Disconnect the connector and measure at the harness side.

D

Continuity between 2 and body earth
OK: Continuity present when UP sunroof switch is on

D

Continuity between 3 and body earth
OK: Continuity present when CLOSE/DOWN sunroof switch

is on

D

Continuity between 4 and body earth
OK: Continuity present when OPEN sunroof switch is on

NG

Check the following connectors:
D-10, D-07

NG

Repair

OK

Check trouble symptoms.

NG

Check the harness wire between sun-
roof-ECU and sunroof switch, between
sunroof switch and the earth, and repair
if necessary.

OK

Check the sunroof motor. (Refer to P.42-17.)
Check limit switch continuity. (Refer to P.42-17.)

NG

Replace

OK

Measure at the sunroof motor connector D-12.

D

Disconnect the connector and measure at the harness side.

D

Continuity between 4 and body earth
OK: Continuity

NG

Check the following connectors:
B-44, D-12

NG

Repair

OK

Check trouble symptoms.

NG

Check the harness wire between sun-
roof motor and the earth, and repair
if necessary.

OK

Check the following connectors:
D-12, D-10

NG

Repair

OK

Check trouble symptoms.

NG

Check the harness wire between sun-
roof-ECU and sunroof motor.

NG

Repair

OK

Replace the sunroof-ECU.

Measure at the sunroof-ECU connector D-10.

D

Disconnect the connector and measure at the harness side.

D

Ignition switch: ON

(1) Voltage between 5 and body earth

OK: System voltage

(2) Voltage between 7 and body earth

OK: System voltage

(3) Continuity between 18 and body earth

OK: Continuity

(1) NG

Check the following connectors:
B-44, B-74, B-76, D-10

NG

Repair

BODY  – 

Sunroof

42-11

Inspection Procedure 2

The motor does not reverse its direction when a load of
140 N or more is applied while the sunroof is closing.

Probable cause

The sunroof-ECU monitors the load conditions from the amount of current flowing
to the motor. If more than the constant amount of current is flowing, the direction
of motor operation is reversed to prevent jamming.
If the motor does not reverse direction even when an excessive load is being applied,
the cause may be a malfunction of the sunroof-ECU.

D

Malfunction of sunroof-ECU

Replace the sunroof-ECU.

Inspection Procedure 3

The timer does not operate for 30 seconds after the
ignition switch is turned to OFF.

Probable cause

The sunroof-ECU has a timer function which operates for 30 seconds after the ignition
switch is turned to OFF. If the timer does not operate, the cause may be a malfunction
of the sunroof-ECU or of the wiring harness or connector.

D

Malfunction of sunroof-ECU

D

Malfunction of wiring harness or connector

Measure at the sunroof-ECU connector
D-10.

D

Disconnect the connector and
measure at the harness side.

D

Voltage between 7 and body earth
OK: System voltage

NG

Check the following connectors:
B-44, B-76, B-73

NG

Repair

OK

Check trouble symptoms.

OK

Replace the sunroof-ECU.

Check the harness wire between fusible
link No.1 and sunroof-ECU, and repair
if necessary.

NG

Inspection Procedure 4

Opening or closing of the sunroof is possible for 30
seconds after turning the ignition switch to OFF, but the
timer function is not extended when the driver’s side door
is opened within this period.

Probable cause

The sunroof timer operation period is extended when an on signal is output from
the driver’s-side door switch. Because of this, if the timer operation period is not
extended, the cause may be a malfunction of the door switch input circuit.

D

Malfunction of the front door switch (driver’s side)

D

Malfunction of sunroof-ECU

D

Malfunction of wiring harness or connector

Check front door switch (driver’s side)
continuity.

NG

Replace

OK

Check the following connectors:
B-44, D-03, D-10

NG

Repair

OK

Check trouble symptoms.

NG

Check the harness wire between front
door switch (driver’s side) and sunroof-
ECU.

NG

Repair

OK

Replace the sunroof-ECU.

BODY  – 

Sunroof

42-12

TERMINAL VOLTAGE CHART

Terminal No.

Check Item

Check Condition

Normal Condition

1

Door switch input

Driver’s door switch

ON

0 V

OFF

System voltage

2

Sunroof switch (up) input

Sunroof switch 
(up position)

ON

0 V

(up position)

OFF

System voltage

3

Sunroof switch (close or
down) input

Sunroof switch (close
position or down position)

ON

0 V

down) input

position or down position)

OFF

System voltage

4

Sunroof switch (open
input)

Sunroof switch 
(open position)

ON

0 V

input)

(open position)

OFF

System voltage

5

ECU power supply

Ignition switch: ON

System voltage

6

Motor output (When
sunroof is opening)

While sunroof is opening or moving
down

System voltage

Other than the above

0 V

7

Timer operation power
supply

Always

System voltage

8

Motor output (When
sunroof is closing)

While sunroof is closing or moving up

System voltage

sunroof is closing)

Other than the above

0 V

9

Limit switch 3 input

In tilt up condition and fully-open
condition

0 V

Other than the above

System voltage

10

Limit switch 1 input

In tilt up condition

System voltage

In fully-closed and fully-open conditions

0 V

In slide-closing condition

0 V 

→

 System voltage 

→

0V.

12

Limit switch 2 input

In tilt up condition and fully-closed
condition

System voltage

Other than the above

0 V

18

Earth

Always

0 V

BODY  – 

Sunroof

42-13

ON-VEHICLE SERVICE

WATER TEST

Check if there are any leaks in the sunroof by the following
procedure.
1.

Fully close the roof lid glass.

2.

Adjust the water pressure so that water comes out of
the hose to a height of approximately 50 cm when the
hose is held vertically facing upwards.

3.

Hold the end of the hose approximatery 30 cm above
the roof and let the water run onto the weatherstrip for
5 minutes or more.

4.

While doing this, check if any water leaks through into
the passenger compartment from around the roof lid glass.

SUNROOF FIT ADJUSTMENT

1.

Fully close the roof lid glass.

2.

Fully open the sunshade.

3.

Remove the side decoration cover.

4.

To adjust the forward, backward and sideways position
of the roof lid glass, loosen the six roof lid glass assembly
mounting nuts and then adjust the glass forward,
backward or sideways.

NOTE
If the adjustment cannot be made by loosening the
adjustment nuts, the fully closed position of the roof lid
glass may not match that of the motor. If so, adust them
to match their fully closed positions.

5.

To adjust the height of the roof lid glass, loosen the four
guide (A) assembly mounting screws and then move the
roof lid glass assembly along the slot in the guide (A)
assembly.

6.

After adjustment, check to be sure that the sunroof
operates smoothly.

Hose

Apporox. 30cm

Clip

Side decoration cover