Mitsubishi Lancer Evolution 8. Manual — part 146
SWS – TROUBLESHOOTING
54B-107
Check connector E-03
Check the driver’s door lock actuator (See Chap 42 –
Doors *)
Check connectors C-114, C-226
Check the harness between the driver’s door lock
actuator and the ETACS-ECU
Measure at the Driver’s door lock actuator connector E-
03
• Detach the connector and measure at the harness side
• Connectivity between 3 & body earth
OK: Connectivity
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: Normal state displayed for all
Replace the ETACS-ECU
Check connector C-114
Check the harness between the driver’s door actuator
and the body earth
Transient problem
Inspection procedure R-15
Note:
*: See ’00-5 Lancer Sedia Servicing Manual (No. 1036K00)
Driver’s door lock actuator signal not input
Probable Cause
Because the driver’s door actuator input signal is used to
determine the operation of the following functions, these
functions will not work correctly if there is an error in the input
signal.
• Key left in reminder function
• Central door locking
• Keyless entry system
• Interior lights (operating keyless entry answer back)
• Fault in driver’s door lock actuator
• Fault in ETACS-ECU
• Fault in harness or connectors
OK
NG
NG
NG
NG
OK
NG
NG
OK
OK
OK
OK
OK
NG
Repair
Replace
Replace
Repair
Repair
SWS – TROUBLESHOOTING
54B-108
Inspection procedure R-16
Is the speedometer working normally?
Check connectors B-131, B-31, C-22
Confirm the trouble symptoms
Check the harness between the vehicle speed sensor
and the ETACS-ECU
Replace the ETACS-ECU
Carry out speedometer troubleshooting (See Chap. 54A
Combination meter *)
Note:
(1) The vehicle speed senor signal input is checked during actual travel of the vehicle.
(2) *: See ’00-5 Lancer Sedia Servicing Manual (No. 1036K00)
Vehicle speed signal not input
Probable Cause
Because the vehicle speed signal is used to determine the
operation of the following functions, these functions will not
work correctly if there is an error in the input signal.
• Windscreen wipers/washers (speed sensitive wiper function)
• Motorised retractable door mirrors (automatic return
function)
• Fault in vehicle speed sensor
• Fault in ETACS-ECU
• Fault in harness or connectors
NO
YES
NG
NG
OK
NG
OK
Repair
Repair
SWS – TROUBLESHOOTING
54B-109
Inspection procedure R-17
SWS monitor keyless entry reception check
Check using all keyless entry transmitters with which
problems were confirmed
• Keyless entry transmitter
Lock switch: ON
MUT display
Normal state
Lock
• Keyless entry transmitter
Unlock switch: Long press
MUT display
Normal state
Unlock
OK: All display normal state
Replace the keyless entry transmitter
Replace the transmitter
Register encrypted
codes
Confirm the trouble
symptoms
End of
troubleshooting
Replace
Replace the ETACS-
ECU
Check the battery of
the keyless entry
transmitter
Keyless entry
transmitter check
(1) Register keyless entry
transmitters that are
functioning normally.
(The keyless entry
transmitter installation
screws are coloured
silver.)
(2) Check that the input
signals are input
correctly when the
respective switches of
the transmitter are
pressed.
OK: Signals input
correctly
Confirm the trouble
symptoms
Replace the ETACS-
ECU
Transient problem
Various switch signals of keyless entry transmitter not input
Probable Cause
The keyless entry transmitter input signal is used to determine the
operation of the keyless entry system, and if there is a problem with
this signal, then the keyless entry system will not work correctly.
• Fault in keyless entry transmitter
• Fault in keyless entry transmitter battery
• Fault in ETACS-ECU
Display normal for all
Normal state displayed
for some only
“X” displayed
for all
OK
NG
OK
OK
NG
NG
NG
OK
SWS – TROUBLESHOOTING
54B-110
Inspection procedure R-18
Check connector C-129
Check the fog light switch (See Chap 54A – Fog lights *)
Check connectors C-225, C-110
Check the harness between the fog light switch and the
ETACS-ECU
Transient problem
Check connector C-107
Check the harness between the fog light switch and the
body earth, and repair
Replace the ETACS-ECU
Measure at the Fog light switch connector C-129
• 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
• Fog light switch: ON
Item No.
Item Name
Normal state
10
F Fog light SW
ON
OK: Normal state displayed
Note:
*: See ’00-5 Lancer Sedia Servicing Manual (No. 1036K00)
Fog light switch signal not input
Probable Cause
The fog light switch input signal is used to determine the
operation of the fog lights, so any problem in this signal will
prevent the fog lights from lighting up.
• Fault in fog 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
Repair
Repair
Repair
Replace
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