Mitsubishi Lancer Evolution 8. Manual — part 128
SWS – TROUBLESHOOTING
54B-35
Is door ajar warning set to “Function present” by
adjustment function?
SWS monitor ECU check
• Ignition switch : ON
ETACS-ECU
OK: “OK” is displayed
SWS monitor service data
(Communications data) ETACS
• Driver’s door : open
Item No.
Item Name
Normal state
32
Driver door SW RH ON
OK: Displays normal state
SWS monitor service data
(Communications data) ETACS
• Each door : respectively opened and closed
Item No.
Item Name
Normal state
38
Security alarm
ON
OK: Displays normal state
SWS monitor service data
ETACS analogue data
• Vehicle speed : Input simulated vehicle speed of
approx. 10 km/h
Item No.
Item Name
Normal state
03
Vehicle speed sensor
8-10 km/h
OK: Displays normal state
Confirm the trouble symptoms
Transient problem
Set door ajar warning set to “Function present” by
adjustment function
To Inspection procedure A-3 No communication with
ETACS-ECU (see p.54B-28)
To Inspection procedure R-4 “Driver’s door switch signal
not input” (See p.54B-98)
To Inspection procedure R-14 “All door switch signals not
input (except driver’s door)” (See p.54B-106)
To Inspection procedure R-16 “Vehicle speed signal not
input” (See p.54B-108)
Replace the ETACS-ECU
Inspection Procedure B-3
Door ajar warning function not working correctly
Probable Cause
This function is operated by determining the following input signals in the
ETACS-ECU.
• All door switch
• Vehicle speed signal
• Fault in all door switch
• Fault in ETACS-ECU
• Fault in harness or connectors
YES
NO
NG
NG
NG
NG
NG
OK
OK
OK
OK
OK
SWS – TROUBLESHOOTING
54B-36
nspection Procedure B-4
Is the turn indicator operating noise function set to
“Function present” by the adjustment function?
SWS monitor ECU check
• Ignition switch : ON
(1) Column ECU
(2) ETACS-ECU
OK: “OK” is displayed for all
SWS monitor service data
(Diagnosis by Function) Turn indicator light : R Turn
indicator
• Turn indicator light switch : RH
• Ignition switch : ON
Item No.
Item Name
Normal state
(a) 10
RH turn indicator SW
ON
(b) 30
Ignition SW IG1
ON
OK: All display normal state
SWS monitor service data
(Diagnosis by Function) Turn indicator light : L Turn
indicator
• Turn indicator light switch : LH
• Ignition switch : ON
Item No.
Item Name
Normal state
(a) 11
LH turn indicator SW
ON
OK: Displays normal state
Confirm the trouble symptoms
Transient problem
Set the turn indicator operating noise function to
“Function present” by the adjustment function
To Inspection procedure A-2 No communication with
Column ECU (see p.54B-27)
To Inspection procedure A-3 No communication with
ETACS-ECU (see p.54B-28)
To Inspection procedure R-5 “Column switches Lighting,
Turn indicator light switch) signal not input” (See p.54B-
99)
To Inspection procedure R-2 “Ignition switch (IG1) signal
not input” (See p.54B-96)
To Inspection procedure R-5 “Column switches Lighting,
Turn indicator light switch) signal not input” (See p.54B-
99)
Replace the ETACS-ECU
Turn indicator light operating noise not working correctly
Probable Cause
This function is operated by determining the following input signals in the
ETACS-ECU.
• Turn indicator light switch
• Hazard light switch
• Fault in column switch
• Fault in ETACS-ECU
• Fault in harness or connectors
YES
NO
NG (1)
NG (2)
NG (a)
NG (b)
NG
NG
OK
OK
OK
OK
SWS – TROUBLESHOOTING
54B-37
Is the multi-centre display working normally?
SWS monitor ECU check
(1) ETACS-ECU
(2) Centre display
OK: “OK” is displayed for all
SWS monitor service data
(Diagnosis by Function) Buzzer : Display buzzer
• Ignition switch : ON
• Radio memory operation has been performed
Item No.
Item Name
Normal state
(a) 60
beep data
ON (2kHz)
(b) 43
Buzzer
OFF
OK: All display normal state
Confirm the trouble symptoms
Transient problem
Check the multi-centre display (See Chap. 54A –
MMCS*)
To Inspection procedure A-3 No communication with
ETACS-ECU (see p.54B-28)
To Inspection procedure A-7 No communication with
Multi-centre display (see p.54B-32)
To Inspection procedure R-10 “Respective switch signals
of multi-centre display not input” (See p.54B-103)
Replace the ETACS-ECU
Replace the ETACS-ECU
Inspection Procedure B-5
Note :
(1) When performing the SWS monitor service data check, confirm at the same time that the 60 beep data state changes
momentarily from “OFF” to the normal state when the image operating switch is activated.
(2) *: See ’00-5 Lancer Cedia Servicing Manual (No. 1036K00)
Multi-centre display operating noise function not working correctly
Probable Cause
A buzzer sounds when the ETACS-ECU receives a sound request signal
from the multi-centre display.
If this function does not work correctly, then this is probably due to an
abnormality in the communications circuit, a fault in the multi-centre
display, or a fault in the ETACS-ECU.
• Fault in multi-centre display
• Fault in ETACS-ECU
• Fault in harness or connectors
OK
NG
NG (1)
NG (a)
NG (b)
NG
NG (2)
OK
OK
OK
SWS – TROUBLESHOOTING
54B-38
Inspection Procedure C-1
SWS monitor ECU check
• Ignition switch : OFF
ETACS-ECU
OK: “OK” is displayed for all
Check connector E-03
Check driver’s door lock actuator (See Chap. 42 Doors)
Check connectors C-224, C-211, C-32
Check the harness between the ETACS-ECU and the
fusible link (1)
Confirm the trouble symptoms
Transient problem
To Inspection procedure A-3 No communication with
ETACS-ECU (see p.54B-28)
To Inspection procedure R-15 Driver’s door lock actuator
signal not input (See p.54B-107)
Replace the ETACS-ECU
SWS monitor service data
ETACS switch data
• Driver’s door : Unlock
→
lock
Item No.
Item Name
Normal state
(1) 21
Dr Door lock SW
OFF
→
ON
(2) 22
Dr Door unlock SW
ON
→
OFF
OK: All display normal state
Central door locking not working at all
Probable Cause
The ETACS-ECU locks or unlocks all the doors by activating all of the door
lock actuators, when there is a change in the input signal from the driver’s door
lock actuator.
If this function does not work properly, then there is probably a fault in the
driver’s door lock actuators or a fault in the ETACS-ECU.
• Fault in driver’s door lock actuator
• Fault in ETACS-ECU
• Fault in harness or connectors
OK
OK
OK
OK
OK
OK
OK
NG
Repair
Repair
Replace
Repair
NG
NG
NG
NG
NG
NG
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