Mitsubishi Montero Sport (2004+). Manual — part 480
SUNROOF ASSEMBLY
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BODY
42-175
DIAGNOSIS
STEP 1. Check sunroof-ECU connector E-07 and sunroof
switch connector E-03 for damage for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Are sunroof-ECU connector E-07 and sunroof switch
connector E-03 damaged?
YES : Repair or replace the damaged components. Refer to
GROUP 00E
, Harness Connector
Inspection. Then go to Step 5.
NO : Go to Step 2.
AC309311
CONNECTORS: E-03, E-07
E-07
E-03
E-07 COMPONENT SIDE
E-03 COMPONENT SIDE
AB
SUNROOF ASSEMBLY
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BODY
42-176
STEP 2. Measure the power supply voltage at sunroof
switch connector E-03.
(1) Remove the headlining. (Refer to GROUP 52A, Headlining
.)
(2) Disconnect sunroof switch connector E-03 and measure at
the harness side.
(3) Turn the ignition key "ON".
(4) Measure the voltage between terminal 1 and ground, and
between terminal 3 and ground.
• The measured value should be approximately 12 volts
(battery positive voltage).
Q: Does the measured voltage correspond with this range?
YES : Go to Step 4.
NO : Go to Step 3.
STEP 3. Check the harness wires between sunroof switch
connector E-03 (terminal No.1 and 3) and sunroof-ECU
connector E-07 (terminal No.4 and 5).
Q: Are there any damaged wires between sunroof switch
connector E-03 (terminal No.1 and 3) and sunroof-ECU
connector E-07 (terminal No.4 and 5)?
YES : Repair or replace the harness wire. Then go to Step
NO : Replace the sunroof-ECU. Then go to Step 4.
AC201995
4 3
1
5
6
2
CONNECTOR: E-03
E-03
AB
COMPONENT SIDE
5 4
6
3
2
1
AC004959AC
E-03 HARNESS CONNECTOR:
COMPONENT SIDE
AC309311
CONNECTORS: E-03, E-07
E-07
E-03
E-07 COMPONENT SIDE
E-03 COMPONENT SIDE
AB
SUNROOF ASSEMBLY
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BODY
42-177
STEP 4. Check the harness wire between sunroof switch
connector E-03 (terminal No.4) and ground.
NOTE: After inspecting intermediate connector C-01 inspect
the wire. If intermediate connector C-01 is damaged, repair or
replace it. Refer to GROUP 00E
, Harness Connector
Inspection. Then go to Step 5.
Q: Is the harness wire between sunroof switch connector
E-03 (terminal No.4) and ground damaged?
YES : Repair or replace the harness wire, then go to Step 5.
NO : Replace the sunroof switch. Then go to Step 5.
STEP 5. Retest the system.
Q: Does the sunroof open and close normally?
YES : The procedure is complete.
NO : Return to Step 1.
AC201995
4 3
1
5
6
2
CONNECTOR: E-03
E-03
AB
COMPONENT SIDE
AC309309AC
C-01
CONNECTOR: C-01
SUNROOF ASSEMBLY
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BODY
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INSPECTION PROCEDURE 3: The Sunroof Motor does not Operate.
.
CIRCUIT OPERATION
The sunroof-ECU monitors the sunroof switch status
(slide open, slide close, tilt down, tilt up) and oper-
ates the sunroof motor.
.
TECHNICAL DESCRIPTION (COMMENT)
The cause may be a malfunction of the sunroof
motor power supply/ground circuit system.
.
TROUBLESHOOTING HINTS
• Malfunction of the sunroof-ECU
• Malfunction of the sunroof motor
• Damaged harness wires or connectors
SUNROOF
MOTOR
CIRCUIT
BREAKER
SUNROOF-
ECU
Sunroof Motor Circuit
AC004958AH
CONNECTORS: E-07, E-09
E-07
E-09
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