Mitsubishi Grandis. Manual — part 51
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-201
Step 6. Check the wiring harness between E-07
sunroof motor assembly connector terminal
No.10 and C-221 ETACS-ECU connector terminal
No.59.
NOTE:
Prior to the wiring harness inspection, check
intermediate connector C-128 and joint connector
C-01, and repair if necessary.
• Check the communication lines for open circuit.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
AC310651
Connector: E-07 <LHD>
AE
Harness side
AC310655
Connector: E-07 <RHD>
AF
Harness side
AC310626
Connector: C-221 <LHD>
AG
Junction block (rear view)
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
Harness side
C-221(GR)
AC310620
Connector: C-221 <RHD>
AF
Junction block (rear view)
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
Harness side
C-221(GR)
AC310614
BI
Connectors: C-01, C-128
C-01
C-128
C-01
C-128
<LHD>
AC310632BB
Connectors: C-01, C-128
C-01
C-128
C-01
C-128
<RHD>
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-202
Step 7. Retest the system.
Check that the sunroof timer function work normally.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
Cope with Intermittent Malfunction
NO :
Replace the sunroof motor assembly.
Inspection Procedure F-4: The sunroof inhibition function does not work normally (The sunroof
operation lock warning buzzer does not sound).
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
SUNROOF MOTOR
ASSEMBLY
CPU
ETACS-
ECU
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
Sunroof Lock Function <LHD>
POWER
WINDOW
MAIN
SWITCH
(LOCK SWITCH)
CPU
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-203
COMMENTS ON TROUBLE SYMPTOM
If the sunroof inhibition function does not work
normally, the sunroof motor assembly, the power
window main switch or the ETACS-ECU may be
defective.
POSSIBLE CAUSES
• Malfunction of the power window main switch
• Malfunction of the sunroof motor assembly
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. Which does not operate normally, the
sunroof inhibition or the sunroof operation lock
buzzer?
Q: Which does not operate normally, the sunroof
inhibition or the sunroof operation lock buzzer?
The sunroof inhibition does not work normally. :
Go to Step 2.
The sunroof operation lock buzzer does not work
normally. :
Go to Step 4.
Neither operates normally. :
Go to Step 5.
Step 2. Check for sunroof diagnosis code.
Check whether the sunroof-related diagnosis code is
set.
Q: Is the diagnosis code set?
YES :
Go to Step 3.
NO :
Refer to diagnosis code chart
Step 3. Check the operation of the sunroof.
Check that the sunroof works normally by using the
sunroof switch.
Q: Is the check result normal?
SUNROOF MOTOR
ASSEMBLY
CPU
ETACS-
ECU
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
Sunroof Lock Function <RHD>
POWER
WINDOW
MAIN
SWITCH
(LOCK SWITCH)
CPU
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-204
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
Cope with Intermittent Malfunction
NO :
Inspection procedure F-1 "The sunroof does
not work
."
Step 4. Check the power supply circuit.
When the ignition switch is turned to the LOCK
(OFF) position, check if the hazard warning lamps
illuminate.
Q: Is the check result normal?
YES :
Replace the ETACS-ECU.
NO :
Refer to inspection procedure A-2 "Check
the ETACS-ECU battery power supply
circuit
Step 5. Confirm the operation of the power
windows.
Check that each of the power windows (excluding
the driver's door) works normally by using the power
window main switch.
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Inspection procedure D-4 "Passenger’s
and/or rear power window(s) do not work by
means of the power window main switch
Step 6. Confirm the operation of the power
windows.
Turn on the power window lock switch. Check that
neither of the power windows (excluding the driver's
door) works when the relevant power window sub
switch is operated.
Q: Is the check result normal?
YES :
Replace to the power window main switch.
NO :
Go to Step 7.
Step 7. Check the operation of the sunroof.
Check that the sunroof works normally by using the
sunroof switch.
Q: Is the check result normal?
YES :
Go to Step 8.
NO :
Inspection procedure F-1 "The sunroof does
not work
."
Step 8. Check the power supply circuit.
When the ignition switch is turned to the LOCK
(OFF) position, check if the hazard warning lamps
illuminate.
Q: Is the check result normal?
YES :
Go to Step 9.
NO :
Refer to inspection procedure A-2 "Check
the ETACS-ECU battery power supply
circuit
Step 9. MUT-III diagnosis code
When the ignition switch is turned to the LOCK
(OFF) position, check that the ETACS-ECU does not
set the diagnosis code.
Q: Is the diagnosis code set?
YES :
Refer to diagnosis code chart
.
NO :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
Cope with Intermittent Malfunction
Inspection Procedure F-5: Sunroof anti-trap function does not work normally.
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
If the sunroof anti-trap function does not work, the
sunroof motor assembly (sunroof-ECU) may be
defective.
POSSIBLE CAUSES
• Malfunction of the sunroof motor assembly
(sunroof-ECU)
DIAGNOSTIC PROCEDURE
Retest the system.
Check that the sunroof anti-trap function work
normally.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
Cope with Intermittent Malfunction
NO :
Replace the sunroof motor assembly.
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