Mitsubishi Evolution X. Manual — part 514
SUNROOF
TSB Revision
BODY
42A-159
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: Sunroof does not work at All.
CAUTION
Before replacing the ECU, ensure that the power
supply circuit, the ground circuit and the com-
munication circuit are normal.
AC609432
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
AC
Sunroof Motor Assembly Power Supply Circuit
SUNROOF
SWITCH
BLA
CK
YELLO
W
GREEN
BLUE
SUNROOF
TSB Revision
BODY
42A-160
.
CIRCUIT OPERATION
Malfunctions of the sunroof motor assembly power
supply/ground system, sunroof motor assembly, or
sunroof switch are suspected.
.
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 CAN bus 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)
(2) Turn the ignition switch to the "ON" position.
(3) Check whether the CAN bus lines related DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Repair the CAN bus line (Refer to GROUP 54C, CAN
bus diagnostics table
).
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
TSB Revision
BODY
42A-161
STEP 2. 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)
(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
.
NO : Go to Step 3.
STEP 3. 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 4.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. Check that the sunroof works normally.
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
SUNROOF
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BODY
42A-162
STEP 4. Sunroof switch check
(1) Remove the sunroof switch. Refer to
(2) Check continuity when the sunroof switch is operated to
"OPEN", "TILT-UP" or "CLOSE/TILT-DOWN" position.
Q: Is the sunroof switch normal?
YES : Go to Step 5.
NO : Replace the sunroof switch. Check that the sunroof
works normally.
STEP 5. Check the ground circuit to the sunroof motor
assembly. Measure the resistance at sunroof switch
connector D-05.
(1) Disconnect sunroof switch connector D-05 and measure the
resistance available at the wiring harness side of the
connector.
(2) Measure the resistance value between terminal 4 and
ground.
• The resistance should be 2 ohms or less.
Q: Is the measured resistance 2 ohms or less?
YES : Go to Step 6.
NO : Go to Step 8.
STEP 6. 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 7.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. Check that the sunroof works normally.
Switch
position
Terminal No.
Normal value
Tilt-up
3
− 4
Continuity
exists (2
Ω or
less)
OFF
3
− 4, 4 − 5, 4 − 6 Open circuit
Open
4
− 5
Continuity
exists (2
Ω or
less)
Close/tilt-down
4
− 6
Continuity
exists (2
Ω or
less)
AC506531AC
Sunroof switch
AC209731
6
4
5
3 2 1
Connector D-05
(Harness side)
AC208731BX
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