Mitsubishi Grandis. Manual — part 157
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-90
Inspection Procedure A-6: Communication with the sunroof motor assembly (sunroof-ECU) is not
possible.
CAUTION
Whenever the ECU is replaced, ensure that the
power supply circuit, the grounding circuit and
the communication circuit are normal.
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-91
COMMENTS ON TROUBLE SYMPTOM
The sunroof motor assembly, the power supply
circuit or the communication circuit for that assembly
may be defective.
POSSIBLE CAUSES
• Malfunction of the sunroof motor assembly
• Damaged harness wires and connectors
IGNITION
SWITCH (IG2)
SUNROOF MOTOR
ASSEMBLY
CPU
ETACS-ECU
FUSIBLE
LINK
5
FUSE
BOX
Sunroof Motor Assembly and SWS Communication Circuit
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
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-92
DIAGNOSIS PROCEDURE
Step 1. ECU check on the SWS monitor
Check that the power supply and earth lines to the
ETACS-ECU and the SWS communication lines are
normal.
• Ignition switch: OFF
ECUS TO BE CHECKED
• ETACS ECU
OK: "OK" is displayed on the "ETACS ECU"
menu.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Refer to Inspection Procedure A-3
"Communication with the ETACS-ECU is
not possible"
Step 2. Connector check: E-07 sunroof motor
assembly connector
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Repair the defective connector.
Step 3. Voltage measurement at E-07 sunroof
motor assembly connector.
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Voltage between E-07 sunroof motor assembly
connector terminal No.1 and body earth
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Go to Step 4.
AC310651
AB
Connector: E-07 <LHD>
Harness side
AC310655
AC
Connector: E-07 <RHD>
Harness side
AC310651
AB
Connector: E-07 <LHD>
Harness side
AC310655
AC
Connector: E-07 <RHD>
Harness side
AC209365
AC209365LK
CONNECTOR E-07
(HARNESS SIDE)
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-93
Step 4. Check the wiring harness between E-07
sunroof motor assembly connector terminal No.1
and fusible link (5).
NOTE:
Prior to the wiring harness inspection, check
intermediate connectors C-124, C-128, and repair if
necessary.
• Check the power supply line for open circuit.
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 :
Repair the wiring harness.
AC310651
AB
Connector: E-07 <LHD>
Harness side
AC310655
AC
Connector: E-07 <RHD>
Harness side
AC310614
AV
Connectors: C-124, C-128 <LHD>
C-124
C-128
C-124
C-128
9
21
33
35
24
12
3 4
7
8
5 6
39
28
41
30
18
4243
31
1920
32
40
29
1617
38
27
15
37
36
26
14
13
25
2
1
34
23
11
10
22
AC310628AK
Connector: C-124 <RHD>
9
21
33
35
24
12
3 4
7
8
5 6
39
28
41
30
18
4243
31
1920
32
40
29
1617
38
27
15
37
36
26
14
13
25
2
1
34
23
11
10
22
AC310631AM
Connector: C-128 <RHD>
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