Mitsubishi Lancer Evolution 8. Manual — part 145
SWS – TROUBLESHOOTING
54B-103
SWS monitor ECU check
Centre display
OK: “OK” is displayed
Check the multi-centre display
Replace the multi-centre display
Check connector C-202
Check the key reminder switch (Chap. 54A Ignition
switch *)
Measure at the Key reminder switch connector C-202
• Detach the connector and measure at the harness side
• Connectivity between 4 & body earth
OK: Connectivity
Check connector C-226
Check the harness between the key reminder switch and
the ETACS-ECU
SWS monitor service data
ETACS switch data
• Ignition switch: OFF (key inserted)
Item No.
Item Name
Normal state
03
Key reminder SW
ON
OK: Normal state displayed
Transient problem
Check connector C-107
Check the harness between the key reminder switch and
the body earth, and repair
Replace the ETACS-ECU
To Inspection procedure A-7 No communication with
multi-centre display (p.54B-32)
Transient problem
SWS monitor service data
(Communications data) Centre display
• Ignition switch: ACC
Item No.
Item Name
Normal state
62
Display input
ON
OK: Normal state displayed when audio operating stick is
pressed, except for volume
Inspection procedure R-10
Inspection procedure R-11
Note:
*: See ’00-5 Lancer Sedia Servicing Manual (No. 1036K00)
Respective switch signals not input for multi-centre display
Probable Cause
If there is a problem in the multi-centre display, then the multi-
centre display input check response signal will cease to be
output to the SWS communications line.
• Fault in multi-centre display
• Fault in harness or connectors
Key reminder switch signal not input
Probable Cause
The input signal of the key reminder switch is used when
determining the operation of the following functions.
Therefore, if there is a problem in this input signal, then these
functions will not operate correctly.
• Ignition key left in warning function
• Key left in warning function
• Keyless entry
• Ignition key cylinder illumination light
• Interior lights
• Fault in key reminder switch
• Fault in ETACS-ECU
• Fault in harness or connectors
OK
NG
NG
OK
OK
NG
Repair, Replace
OK
OK
OK
OK
NG
Repair
OK
OK
Repair
Repair
Repair
Replace
OK
NG
NG
NG
NG
NG
NG
SWS – TROUBLESHOOTING
54B-104
Inspection procedure R-12
Check connector C-112
Check the motorised remote control mirror switch (See
Chap 51 – Door mirrors *)
Measure at the Motorised remote control mirror switch
connector C-112
• Detach the connector and measure at the harness side
• Connectivity between 1 & body earth
OK: Connectivity
Check connector C-226
Check the harness between the motorised remote
control mirror switch and the ETACS-ECU
SWS monitor service data
ETACS switch data
• Ignition switch: ON
• Motorised remote control door mirror (retract/return)
switch: ON
Item No.
Item Name
Normal state
14
Motorised mirror SW
ON
OK: Normal state displayed
Replace the ETACS-ECU
Check connector C-107
Check the harness between the motorised remote
control mirror switch and the body earth, and repair
Transient problem
Note:
*: See ’00-5 Lancer Sedia Servicing Manual (No. 1036K00)
Motorised remote control mirror switch (retract / return switch)
signal not input
Probable Cause
The input signal of the motorised remote control mirror switch
(retract / return) switch is used to determine the operation of
the motorised retractable door mirrors, and therefore, if there
is a problem with this signal, the retract/return operation for
the door mirrors will not be possible, even when the motorised
remote control mirror switch is pressed.
∑ Fault in motorised remote control mirror switch
∑ Fault in ETACS-ECU
∑ Fault in harness or connectors
OK
OK
OK
OK
NG
OK
NG
Repair
Repair
NG
NG
OK
NG
NG
OK
Repair
Repair
Replace
SWS – TROUBLESHOOTING
54B-105
Check connectors
C-14 (Vehicle not fitted with multi-centre display)
C-105 (Vehicle fitted with multi-centre display)
Check the hazard light switch (See Chap 54A Hazard
light switch *)
Check connector C-225
Check the harness between the hazard light switch and
the ETACS-ECU.
Transient problem
Check connector C-107
Check the harness between the hazard light switch and
the body earth, and repair
Replace the ETACS-ECU
Measure at the Hazard light switch connector
C-14 (Vehicle not fitted with multi-centre display)
C-105 (Vehicle fitted with multi-centre display)
• Detach the connector and measure at the harness side
• Ignition switch: ON
• Connectivity between 2 & body earth
OK: Connectivity
SWS monitor service data
ETACS switch data
• Ignition switch: OFF
• Hazard light switch : ON
Item No.
Item Name
Normal state
04
Hazard light SW
ON
OK: Normal state displayed
Note:
*: See ’00-5 Lancer Sedia Servicing Manual (No. 1036K00)
Inspection procedure R-13
Hazard light switch signal not input
Probable Cause
The hazard light switch input signal is used to determine the
operation of the hazard lights, and therefore, if there is a
problem with this signal, then the hazard lights will not light
up.
• Fault in hazard light switch
• Fault in ETACS-ECU
• Fault in harness or connectors
OK
OK
OK
OK
OK
OK
NG
NG
NG
NG
OK
NG
NG
NG
Repair
Replace
Repair
Repair
Repair
SWS – TROUBLESHOOTING
54B-106
Inspection procedure R-14
SWS monitor service data
(Communications data) ETACS-ECU
• Driver’s door: Open
Item No.
Item Name
Normal state
32
Front door SW RH
ON
OK: Normal state displayed
Check the state of installation of the door switch on the
body
To Inspection procedure R-4 Driver’s door switch signal
not input (p.54B-98)
Transient problem
Check the door switch (See Chap. 42 Doors*)
Check the harnesses between the respective door
switches and the ETACS-ECU
Replace the ETACS-ECU
Check connectors
(Front passenger door) D-15
(Rear left passenger door) D-09
(Rear right passenger door) D-07
Check connectors
(Front passenger door) C-29, C-212, C-224
(Rear left passenger door) C-29, C-212, C-224
(Rear right passenger door) C-215, C-224
SWS monitor service data
(Communications data) ETACS
• Doors: Respectively opened and closed
Item No.
Item Name
Normal state
38
Security alarm
ON
OK: Normal state displayed
Note:
*: See ’00-5 Lancer Sedia Servicing Manual (No. 1036K00)
All door switch signals not input (except driver’s door)
Probable Cause
Because the input signals from all the door switches are used
to determine the operation of the following functions, these
functions will not work correctly if there is an error in the input
signals.
• Keyless entry system
• Room light
The driver’s door switch is connected internally via the
ETACS-ECU, so it should also be checked that there is no
malfunction in the driver’s door switch input signal.
• Fault in door switch
• Fault in ETACS-ECU
• Fault in harness or connectors
OK
NG
NG
NG
NG
NG
NG
OK
OK
OK
OK
OK
OK
NG
Repair
Repair
Replace
Repair
Repair
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