Mitsubishi Lancer Evolution 8. Manual — part 133
SWS – TROUBLESHOOTING
54B-55
Is the sunroof working correctly in normal operation?
SWS monitor ECU check
• Ignition switch: OFF
• Multi-mode operation performed using keyless entry
transmitter
(1) ETACS-ECU
(2) Sunroof ECU
OK: “OK” is displayed for all
SWS monitor service data
(Diagnosis by Function) Multi-mode keyless entry Multi-
close
• Ignition switch: OFF
• Multi-mode operation performed using keyless entry
transmitter
Item No.
Item Name
Normal state
(a) 34
Multi-mode keyless
Multi-close
(b) 72 Sunroof ECU response Normal response*
OK: All display normal state
Transient problem
To Inspection procedure F-1 Sunroof not working at
all (p.54B-56)
To Inspection procedure A-3 No communication with
ETACS-ECU (p.54B-28)
To Inspection procedure A-6 No communication with
sunroof motor assembly (p.54B-31)
Replace the ETACS-ECU
Replace the sunroof motor assembly
Inspection procedure E-6
Note:
*: About 30 seconds after the end of the multi-mode operation, the display will change from “normal response” to “sleep
response”.
Sunroof close operation not working correctly with multi-mode
keyless entry function
Probable Cause
If the sunroof is working correctly in normal operation, then
there is probably a fault in the ETACS-ECU.
• Fault in ETACS-ECU
• Fault in sunroof motor assembly
YES
NO
NG (1)
NG (a)
NG (b)
NG (2)
OK
OK
SWS – TROUBLESHOOTING
54B-56
Inspection Procedure F-1
Check connector D-27
Measure at the Sunroof motor assembly connector D-27
• Detach the connector and measure at the harness side
• Voltage between 1 & body earth
OK: Battery voltage
Check the harness between the sunroof motor assembly
and the battery voltage, and repair
Measure at the Sunroof motor assembly connector D-27
• Detach the connector and measure at the harness side
• Ignition switch: ON
• Voltage between 2 & body earth
OK: Battery voltage
Measure at the Sunroof motor assembly connector D-27
• Detach the connector and measure at the harness side
• Connectivity between 5 & body earth
OK: Connectivity
Measure at the Sunroof switch connector D-26
• Detach the connector and measure at the harness side
• Connectivity between 4 & body earth
OK: Connectivity
Check connector D-26
Check the sunroof switch (See Chap. 42) *
Confirm the trouble symptoms
Transient problem
Check connectors C-113, C-223, C-210, C-32
Check connectors C-216, C-210
Check the harness between the sunroof motor assembly
and the ignition switch (IG2), and repair
Check the harness between the sunroof motor assembly
and the body earth, and repair
Check the harness between the sunroof switch and the
body earth, and repair
Replace the sunroof motor assembly
Sunroof not working at all
Probable Cause
There is probably a fault in the sunroof switch, a problem in
the sunroof motor assembly power circuit, or a fault in the
sunroof motor assembly.
• Fault in sunroof switch
• Fault in sunroof motor assembly
• Fault in harness or connectors
Note:
*: See ’00-5 Lancer Cedia Servicing Manual (No. 1036K00)
OK
OK
NG
NG
Repair
Repair
OK
NG
NG
NG
Repair
OK
OK
OK
OK
OK
OK
OK
NG
NG
NG
NG
NG
Repair
Repair
SWS – TROUBLESHOOTING
54B-57
SWS monitor ECU check
• Ignition switch: OFF
(1) ETACS-ECU
(2) Sunroof ECU
OK: “OK” is displayed for all
SWS monitor service data
(Diagnosis by Function) Sunroof: Sunroof operation
• Ignition switch: ON ‡ OFF
• P/W lock SW: OFF
Item No.
Item Name
Normal state
(a) 30
Ignition SW IG1
OFF
(b) 72 Sunroof ECU response Normal response
OK: All display normal state
SWS monitor service data
(Diagnosis by Function) Sunroof: Sunroof operation
• Sunroof switch: Particular
Item No.
Item Name
Normal value
72 Sunroof ECU response Input check
OK: Displays normal value at appropriate switch position
Confirm the trouble symptoms
Transient problem
Confirm the trouble symptoms
Transient problem
Replace the sunroof motor assembly
Replace the sunroof switch
Replace the sunroof motor assembly
To Inspection procedure A-3 No communication with
ETACS-ECU (p.54B-28)
To Inspection procedure A-6 No communication with
sunroof motor assembly (p.54B-31)
To Inspection procedure R-2 Ignition switch (IG1)
signal not input (p.54B-96)
Replace the sunroof motor assembly
Replace the sunroof motor assembly
Inspection procedure F-2
Note
When performing the SWS monitor service data check, the normal analysis value for Item No.72 Sunroof ECU response will
show “Normal response” for about 30 seconds, before changing to “Sleep response”. The sunroof timer period can be
extended by means of a delay operation. (See ’00-5 Lancer Cedia Servicing Manual (No. 1036K00))
Inspection procedure F-3
Sunroof timer function not working
Probable Cause
This function is operated by determining the ignition switch
(IG1) signal from the ignition switch (IG2) circuit of the sunroof
motor assembly and the ETACS-ECU.
• Fault in sunroof motor assembly
• Fault in ETACS-ECU
• Fault in harness or connectors
Particular sunroof functions not working
Probable Cause
If particular sunroof functions cannot be operated, then there
is probably a fault in the sunroof motor assembly, or the
sunroof switch.
• Fault in sunroof motor assembly
• Fault in sunroof switch
Sunroof trap prevention function not working correctly
Probable Cause
There is probably a fault in the rotation detector sensor of the
sunroof motor assembly.
• Fault in sunroof motor assembly
Inspection procedure F-4
OK
OK
OK
OK
OK
NG
NG
NG
NG (b)
NG (a)
NG (1)
NG (2)
SWS – TROUBLESHOOTING
54B-58
Inspection procedure G-1
SWS monitor ECU check
• Ignition switch: OFF
(1) Column switch
(2) Front ECU
OK: “OK” is displayed for all
SWS monitor service data
(Diagnosis by Function) Windscreen wipers: INT
• Ignition switch: ACC
• Windscreen wiper switch: INT
Item No.
Item Name
Normal value
(a) 05
INT wiper SW ON
(b) 70 Front ECU response Normal response or
high beam response
OK: All display normal value
Check connector A-13X
Measure at Front ECU connector A-13X
• Detach the connector and measure at the relay box
side
• Ignition switch: ACC
• Voltage between 24 & body earth
OK: Battery voltage
Check connector B-12
Check the windscreen wiper motor (See Chap. 51*)
Measure at Windscreen wiper motor connector B-12
• Detach the connector and measure at the harness side
• Connectivity between 5 & body earth
OK: Connectivity
Check connector C-34
Confirm the trouble symptoms
Transient problem
To Inspection procedure A-2 No communication with
column switch (column ECU) (p.54B-27)
To Inspection procedure A-4 No communication with
front ECU (p.54B-29)
Replace the column ECU
Replace the front ECU
Check connectors C-21, C-209, C-210
Check the harness between the front ECU and the
ignition switch (ACC)
Check the harness between windscreen wiper motor
and the body earth
Replace the front ECU
Note:
*: See ’00-5 Lancer Cedia Servicing Manual (No. 1036K00)
Windscreen wipers not working at all
Probable Cause
There is probably a fault in the windscreen wipers, a fault in
the column ECU or a fault in the front ECU.
If the SWS monitor ECU check returns an NG result, then the
wiper backup circuit should also be checked, and repaired, if
necessary.
• Fault in column switch
• Fault in front ECU
• Fault in harness or connectors
OK
NG (1)
NG (a)
NG (b)
NG (2)
OK
OK
Repair
Repair
Repair
Repair
Replace
NG
NG
NG
NG
NG
NG
NG
NG
OK
OK
OK
OK
OK
OK
OK
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