Mitsubishi Evolution X. Manual - part 512

SUNROOF

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42A-151

SUNROOF TIMER FUNCTION

The sunroof ECU (integrated into the sunroof motor 
assembly) receives the ignition switch (IG1) signal 
transmitted by ETACS-ECU. If the ignition switch 
(IG1) signal turns OFF, the sunroof ECU allows the 
sunroof switch to open/close (timer activation) the 
sunroof for approximately 30 seconds. During the 
timer operation, if the driver’s or passenger’s door 
open is detected from the door switch signal trans-
mitted by ETACS-ECU, the sunroof timer function 
stops at this time.

AC607037

ZC600258

AB

t

OFF

ON

OFF

(Close)

ON

(Open)

Ignition switch (IG1)

Sunroof operation

(Disabled) OFF

(Enabled) ON

t: 30 Seconds 

(Short of timer operation time)

Driver's or passenger's 
door switch

SUNROOF

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SUNROOF DIAGNOSIS

TROUBLESHOOTING STRATEGY

M1426001700239

Refer to GROUP 00, How to Use Troubleshooting/Inspection 
Service Points, Troubleshooting Contents 

P.00-7

.

DIAGNOSTIC TROUBLE CODE CHART

M1426001900136

CAUTION

On troubleshooting, if the ignition switch is turned ON while disconnecting connector(s), diagnostic 
trouble code(s) associated with other system may be set. On completion, check all systems for diag-
nostic trouble code(s). If diagnostic trouble code(s) are set, erase them all.

NOTE: S/R: Abbreviation of sunroof

TROUBLE SYMPTOM CHART

M1426002000426

CAUTION

During diagnosis, a diagnostic trouble code associated with other system may be set when the igni-
tion switch is turned on with connector(s) disconnected. On completion, check all systems for diag-
nostic trouble code(s). If diagnostic trouble code(s) are set, erase them all.

Diagnosis Code No.

Diagnostic item

Reference page

L0630

S/R Power supply

P.42A-153

L0632

S/R Switch fail

P.42A-155

L0634

S/R Sensor signal

P.42A-157

L0637

S/R Position

P.42A-157

L0640

S/R Over load

P.42A-158

Trouble symptom

Inspection 
procedure 
number

Reference 
page

Sunroof does not work at all.

1

P.42A-159

The sunroof lid glass does not tilt-up (tilt-down, open, and close normally).

2

P.42A-164

The sunroof lid glass does not open (tilt-up, tilt-down, and close normally).

3

P.42A-167

The sunroof lid glass does not tilt-down or close (tilt-up and open normally). 4

P.42A-170

Sunroof safety function does not work.

5

P.42A-173

Sunroof timer lock function does not work.

6

P.42A-175

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DIAGNOSTIC TROUBLE CODE PROCEDURES

CODE NO. L0630 S/R POWER SUPPLY

CAUTION

Before replacing the ECU, ensure that the input 
and output signal circuits are normal.

AC609429

CPU

INTERFACE
CIRCUIT

LIN DRIVE
CIRCUIT

INPUT CIRCUIT

INPUT CIRCUIT

DRIVE CIRCUIT

SUNROOF MOTOR

HALL SENSOR

FUSIBLE
LINK

34

SUNROOF

MOTOR

ASSEMBLY

ETACS-ECU

BLA

CK

WHITE

WHITE

GREEN

VIOLET

AD

Sunroof Motor Assembly Power Supply Circuit

SUNROOF

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COMMENTS ON TROUBLE SYMPTOM

When the terminal voltage of the sunroof motor 
assembly is 8 V or less, or 18 V or more, and if it con-
tinues for 60 seconds, the sunroof motor assembly 
will set the diagnostic trouble code No. L0630. 

.

PROBABLE CAUSES

• Malfunction of the sunroof motor assembly

• Damaged wiring harness and connectors

DIAGNOSTIC PROCEDURE

STEP 1. Check sunroof motor assembly connector D-06 
for loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Is sunroof switch connector D-06 in good condition?

YES : Go to Step 2.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

. Check that the sunroof works normally.

STEP 2. Check the wiring harness between sunroof motor 
assembly connector D-06 (terminal 6) and fusible link (34).
NOTE: Also check ETACS-ECU connectors C-309 and C-316 
for loose, corroded, or damaged terminals, or terminals pushed 
back in the connector. If ETACS-ECU connectors C-309 and 
C-316 is damaged, repair or replace the damaged compo-
nent(s) as described in GROUP 00E, Harness Connector 
Inspection 

P.00E-2

.

Q: Is the wiring harness between sunroof motor assembly 

connector D-06 (terminal 6) and fusible link (34) in good 
condition?
YES : Go to Step 3.
NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. Check that 
the sunroof works normally.

AC708972AD

Connectors: C-309, C-316

ETACS-ECU

C-309 (B)

C-316

AC708954 AE

Connector: D-06

D-06 (GR)