Mitsubishi Pajero Pinin. Manual - part 279

 

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Mitsubishi Pajero Pinin. Manual - part 279

 

 

BODY – 

Sunroof

BODY – 

Sunroof

42-42

SUNROOF

SERVICE SPECIFICATION

Items

Standard value

Roof lid glass operating current A (at 20

_

C)

7 or less

TROUBLESHOOTING

INSPECTION CHART FOR TROUBLE SYMPTOMS

Trouble symptom

Inspection procedure

Reference page

The sunroof does not operate when the ignition switch is turned
to ON.

1

42-43

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

2

42-44

The timer does not operate during 30 seconds after the ignition
switch is turned to LOCK (OFF) position.

3

42-44

Opening or closing of the sunroof is possible immediately after
turning the ignition switch to LOCK (OFF) position, but the timer
function does not operate continuously for another 30 seconds
if the driver’s side door is opened within 30 seconds.

4

42-44

BODY – 

Sunroof

42-43

INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS

INSPECTION PROCEDURE 1

The sunroof does not operate when the ignition switch is
turned to ON.

Probable cause

The cause may be a malfunction of a sunroof switch, sunroof-ECU power supply
circuit or earth circuit.

D

Malfunction of sunroof switch

D

Malfunction of sunroof-ECU

D

Malfunction of wiring harness or connector

OK

Check trouble symptoms.

Check the following connectors: C-74, C-76, C-02, C-43, D-06

OK

Check trouble symptoms.

OK

Check trouble symptoms.

OK

Check trouble symptoms.

Check the harness wire, and repair if necessary.

D

Between ignition switch (IG2) and sunroof-ECU

(2) NG

OK

Check trouble symptoms.

NG

Check the harness wire, and repair if necessary.

D

Between fusible link No.3 and sunroof-ECU

OK

Measure at the sunroof-ECU connector D-06.

D

Disconnect the connector and measure at the harness side.

D

Continuity between 5 and body earth
OK: Continuity

OK

OK

OK

NG

OK

Replace the sunroof-ECU.

NG

Check the sunroof switch continuity. (Refer to P.42-49.)

Measure at the sunroof-ECU connector D-06.

D

Disconnect the connector and measure at the harness side.

(1) Voltage between 1 and body earth
(2) Voltage between 3 and body earth

OK: System voltage

Measure at the sunroof-ECU connector D-06.

D

Disconnect the connector and measure at the harness side.

D

Ignition switch: ON

D

Voltage between 2 and body earth
OK: System voltage

NG

NG

Repair

Measure at the sunroof-ECU connector D-06.

D

Disconnect the connector and measure at the harness side.

(1) Continuity between 7 and body earth

OK: Continuity [Sunroof switch (UP) : ON]

(2) Continuity between 6 and body earth

OK: Continuity [Sunroof switch (CLOSE) : ON]

(3) Continuity between 8 and body earth

OK: Continuity [Sunroof switch (OPEN) : ON]

Check the following connectors: C-27, D-06

(1) NG

Check the following connectors: C-72, C-73, D-06

NG

Repair

NG

Check the harness wire, and repair if necessary.

D

Between fusible link No.3 and sunroof-ECU

NG

Check the following connectors: D-06, C-73, C-75, C-01

NG

Repair

NG

Check the harness wire, and repair if necessary.

D

Between ignition switch (IG2) and sunroof-ECU

Replace

Check the following connectors: D-06, D-08, C-73, C-75, C-01

NG

Repair

NG

Check the harness wire, and repair if necessary.

D

Between sunroof-ECU and sunroof switch

D

Between sunroof switch and earth

NG

Repair

NG

BODY – 

Sunroof

BODY – 

Sunroof

42-44

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 during 30 seconds after the
ignition switch is turned to LOCK (OFF) position.

Probable cause

The sunroof-ECU has a timer function which operates during 30 seconds after the
ignition switch is turned to LOCK (OFF) position. 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 wiring harness or connector

D

Malfunction of sunroof-ECU

OK

Check trouble symptoms.

Check the following connectors: C-74, C-76, C-02, C-43, D-06

Check the harness wire, and repair if necessary.

D

Between ignition switch (IG2) and sunroof-ECU

OK

Measure at the sunroof-ECU connector D-06.

D

Disconnect the connector and measure at the harness side.

D

Ignition switch: ON

D

Voltage between 2 and body earth
OK: System voltage

NG

NG

Repair

NG

Replace the sunroof-ECU.

INSPECTION PROCEDURE 4

Opening or closing of the sunroof is possible immediately
after turning the ignition switch to LOCK (OFF) position,
but the timer function does not operate continuously for
another 30 seconds if the driver’s side door is opened
within 30 seconds.

Probable cause

The operation period for the sunroof timer 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 wiring harness or connector

D

Malfunction of driver’s door switch

D

Malfunction of sunroof-ECU

Check the driver’s door switch continu-
ity. (Refer to P.42-22.)

NG

Replace

OK

Repair

Check trouble symptoms.

Check the harness wire between driv-
er’s door switch and sunroof-ECU.

NG

Replace the sunroof-ECU.

OK

Repair

NG

NG

OK

Check the following connectors:
C-82, C-68, D-27, D-05

BODY – 

Sunroof

42-45

SUNROOF-ECU TERMINAL VOLTAGE CHART

Terminal No.

Check Item

Check Condition

Normal Condition

1

ECU power supply

Always

System voltage

2

Sensor power supply

Ignition switch: ON

System voltage

5

Earth

Always

0 V

6

Sunroof switch (CLOSE,
DOWN input)

Sunroof switch 
(close position or down

ON

0 V

DOWN input)

(close position or down
position)

OFF

System voltage

7

Sunroof switch (UP input)

Sunroof switch 
(up position)

ON

0 V

(up position)

OFF

System voltage

8

Sunroof switch (OPEN
input)

Sunroof switch 
(open position)

ON

0 V

input)

(open position)

OFF

System voltage

9

Driver’s door switch

Driver’s door

Open

Continuity

Close

No continuity

 

 

 

 

 

 

 

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