Mitsubishi Evolution X. Manual - part 516

SUNROOF

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42A-167

STEP 6. Retest the system.
Check that the sunroof lid glass tilts up.
Q: Is the check result normal?

YES : No action is necessary and testing is complete.
NO :  Replace the sunroof motor assembly. Check that the 

sunroof works normally.

INSPECTION PROCEDURE 3: The Sunroof Lid Glass does not Open (Tilt-up, Tilt-down, And Close 
Normally).

CAUTION

Before replacing the ECU, ensure that the power 
supply circuit, the ground circuit and the com-
munication circuit are normal.

AC609430

CPU

SUNROOF

SWITCH

INPUT CIRCUIT

INPUT CIRCUIT

DRIVE CIRCUIT

SUNROOF MOTOR

HALL SENSOR

SUNROOF

MOTOR

ASSEMBLY

BLA

CK

BLA

CK

YELLO

W

GREEN

BLUE

AC

Sunroof Switch Circuit

SUNROOF

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42A-168

.

TECHNICAL DESCRIPTION (COMMENT)

The sunroof switch or the sunroof motor assembly 
may be defective.

.

TROUBLESHOOTING HINTS

• The sunroof switch may be defective

• The sunroof motor assembly may be defective

• The wiring harness or connectors may have 

loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector

DIAGNOSTIC PROCEDURE

Required Special Tools:

• MB992006: Extra fine probe

• MB991223: Harness set

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: Vehicles Communication Interface (V.C.I.)

• MB991827: M.U.T.-III USB Cable

• MB991910: M.U.T.-III Main Harness A

STEP 1. Using scan tool MB991958, read the diagnostic 
trouble code.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958. Refer to "How to connect 

scan tool (M.U.T.-III) 

P.42B-10

."

(2) Turn the ignition switch to the "ON" position.
(3) Check whether the sunroof motor assembly related DTC is 

set.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?

YES : Diagnose the sunroof motor assembly. Refer to 

Diagnostic trouble code chart 

P.42A-152

.

NO :  Go to Step 2.

AC708954 AG

Connectors: D-05, D-06

D-05 (B)

D-06 (GR)

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

SUNROOF

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STEP 2. Check sunroof switch connector D-05 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is sunroof switch connector D-05 in good condition?

YES : Go to Step 3.
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 3. Sunroof switch check
(1) Remove the sunroof switch. Refer to 

P.42A-187

.

(2) Check continuity when the sunroof switch is operated to 

"OPEN" position.

Q: Is the sunroof switch normal?

YES : Go to Step 4.
NO :  Replace the sunroof switch. Check that the sunroof 

works normally.

STEP 4. Check sunroof motor assembly connector D-06 
for loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Is sunroof motor assembly connector D-06 in good 

condition?
YES : Go to Step 5.
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 5. Check the wiring harness between sunroof switch 
connector D-05 (terminal 5) and sunroof motor assembly 
connector D-06 (terminal 5). 
Q: Is the wiring harness between sunroof switch connector 

D-05 (terminal 5) and sunroof motor assembly 
connector D-06 (terminal No. 5) in good condition?
YES : Go to Step 6.
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.

Switch 
position

Terminal No.

Normal value

Open

4 

− 5

Continuity 
exists (2 

Ω or 

less)

OFF

3 

− 4, 4 − 5, 4 − 6 Open circuit

AC506531AC

Sunroof switch

SUNROOF

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STEP 6. Retest the system.
Check that the sunroof lid glass open.
Q: Is the check result normal?

YES : No action is necessary and testing is complete.
NO :  Replace the sunroof motor assembly. Check that the 

sunroof works normally.

INSPECTION PROCEDURE 4: The Sunroof Lid Glass does not Tilt-down or Close (Tilt-up and Open 
Normally).

CAUTION

Before replacing the ECU, ensure that the power 
supply circuit, the ground circuit and the com-
munication circuit are normal.

AC609430

CPU

SUNROOF

SWITCH

INPUT CIRCUIT

INPUT CIRCUIT

DRIVE CIRCUIT

SUNROOF MOTOR

HALL SENSOR

SUNROOF

MOTOR

ASSEMBLY

BLA

CK

BLA

CK

YELLO

W

GREEN

BLUE

AC

Sunroof Switch Circuit