Mitsubishi Lancer Evolution IX. Manual — part 117
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DIAGNOSTIC TROUBLE CODE PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-31
DIAGNOSIS CODE SET CONDITIONS
If the voltage in the signal line between the
SRS-ECU and the ETACS-ECU has exceeded 4.6 V
for 40 milliseconds or more, the ETACS-ECU will set
diagnosis code No.31 as an open circuit. If the signal
line voltage has reached 1.5 V or less for at least 2.5
seconds, the ETACS-ECU will set diagnosis code
No.32 as a short circuit. If the ignition switch is turned
off, the ETACS-ECU will stop sending the diagnosis
code.
POSSIBLE CAUSES
• Malfunction of the SRS-ECU
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSTIC PROCEDURE
Step 1. M.U.T.-II/III diagnosis code.
Check that the SRS-ECU sets a diagnosis code.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Refer to GROUP 52B
− Troubleshooting
.
Step 2. Connector check: C-12 SRS-ECU
connector and C-227 ETACS-ECU connector
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Repair the defective connector.
AC310446
Connector: C-12
<LHD>
AX
Harness side
C-12 (Y)
AC310454
Connector: C-12
<RHD>
BB
Harness side
C-12 (Y)
AC310450
Connector: C-227
AG
Junction block
(rear view)
Harness side
<LHD>
28
37
43
29
44
38
23
32
41
24
25
26
27
34
42
36 35
33
21
22
30
39
40
31
AC310461
Harness side
Junction block (rear view)
Connector: C-227
AF
<RHD>
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
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DIAGNOSTIC TROUBLE CODE PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-32
Step 3. Check the wiring harness between C-227
ETACS-ECU connector terminal No.29 and C-12
SRS-ECU connector terminal No.14.
• Check the communication lines for open circuit.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair the wiring harness.
Step 4. Check whether the diagnosis code is
reset.
Replace the SRS-ECU, and then check that the diag-
nosis code is not reset.
(1) Replace the SRS-ECU.
(2) Ignition switch: ON
(3) Check that diagnosis code No.31 or 32 is not
reset.
Q: Is diagnosis code No.31 or 32 set?
YES :
Replace the ETACS-ECU.
NO :
The procedure is complete.
AC310450
Connector: C-227
AG
Junction block
(rear view)
Harness side
<LHD>
28
37
43
29
44
38
23
32
41
24
25
26
27
34
42
36 35
33
21
22
30
39
40
31
AC310461
Harness side
Junction block (rear view)
Connector: C-227
AF
<RHD>
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
AC310446
Connector: C-12
<LHD>
AX
Harness side
C-12 (Y)
AC310454
Connector: C-12
<RHD>
BB
Harness side
C-12 (Y)
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TROUBLE SYMPTOM CHART
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-33
TROUBLE SYMPTOM CHART
M1549000800866
<FUNCTION SYSTEM>
Symptom
Inspection
procedure
number
Reference
page
Communication with the M.U.T.-II/III is not possible.
A-1
When the ignition switch is at the LOCK (OFF) position, the functions do
not work normally.
A-2
Check the battery power supply circuit to the ETACS-ECU.
Symptom
Inspection
procedure
number
Reference
page
Buzzer
Lamp reminder buzzer function does not
work normally.
B-1
Central door locking
system
Central door locking system does not work.
<LH drive vehicles>
C-1
Central door locking system does not work.
<RH drive vehicles>
A door or a tailgate can not be locked or
unlocked by the central door locking
system. <LH drive vehicles>
C-2
A door or a tailgate can not be locked or
unlocked by the central door locking
system. <RH drive vehicles>
The central door locking system can not be
operated by means of the front
passenger's door lock key cylinder.
C-3
The ignition key reminder function does not
work normally.
C-4
The impact detection door unlock function
does not function.
C-5
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TROUBLE SYMPTOM CHART
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-34
Power windows
Power windows do not work at all.
D-1
Driver's power window does not work by
means of the power window main switch.
<LH drive vehicles>
D-2
Driver's power window does not work by
means of the power window main switch.
<RH drive vehicles>
Relevant power window(s) do not work by
means of the front and rear passenger's
power window sub switches.
D-3
Front and/or rear passenger's power
window(s) do not work by means of the
power window main switch.
D-4
The window glass lowers automatically
while it is rising.
D-5
Power window anti-trap function does not
work normally.
D-6
Keyless entry system
Keyless entry system does not work.
E-1
Keyless entry hazard warning lamp
answerback function or the room lamp
answerback function does not work
normally.
E-2
Encrypted code cannot be registered.
E-3
The timer lock function does not work after
the doors have been unlocked by the
keyless entry system.
E-4
Windshield wiper and
washer
The windshield wipers do not work at all.
F-1
The windshield wipers do not work when
the wiper switch is at "INT", "Washer" or
"Mist" position. However, the wipers work
at low speed when the switch is at "Lo" and
"Hi" position.
F-2
The windshield wipers do not stop at the
specified park position.
F-3
The windshield wipers does not work
normally.
F-4
The intermittent wiper interval can not be
adjusted by operating the windshield
intermittent wiper volume control.
F-5
The intermittent wiper interval is not
changed according to the vehicle speed.
F-6
The windshield washer does not work.
F-7
Ignition key cylinder
illumination lamp
The ignition key cylinder illumination lamp
does not illuminate/extinguish normally.
G-1
Symptom
Inspection
procedure
number
Reference
page
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