Mitsubishi Lancer Evolution 8. Manual — part 121
SWS – TROUBLESHOOTING
54B-7
Note:
Refer to the chart below for the connector and terminal nos. on
the door-to-door communications line into which to insert the
probe.
Chart of connector numbers and terminal numbers in door-to-door communications line
Insert the probe section of the probe harness into the terminal of the respective female connectors of the door-to-door
communications line, from the rear side of the connector.
Connector name
Connector No.
Terminal No.
Coupling between
instrument panel
harness and front door
harness (RH)
C-114 (Front door
harness side)
7
Coupling between
instrument panel
harness and front door
harness (LH)
C-33 (Front door
harness side)
8
Coupling between floor
harness (RH) and rear
door harness (RH)
D-03 (Floor harness
side)
7
Intermediate connector
Coupling between floor
harness (LH) and rear
door harness (LH)
D-13 (Floor harness
side)
7
Electric window main switch
E-02
11
Electric window sub-switch (front : LH)
E-06
6
Electric window sub-switch (rear : RH)
E-102
6
Electric window sub-switch (rear : LH)
E-105
6
SWS – TROUBLESHOOTING
54B-8
4. ECU check service points
(1) The ECU check is performed using the MUT-II/III and SWS monitor.
(See MUT-II Reference Manual or MUT-III Instruction Manual)
(2) The following ECU checks can be performed when the ECU is connected to the MUT-II/III and the SWS monitor.
Note:
If an abnormality arises during ECU checking, then troubleshooting should be performed by referring to the Inspection
procedures classified by trouble symptoms.
(See p.54B-21)
ECU subjected to ECU communications check using SWS monitor, and possible ECU states
Note:
(1) *
1
: If the ignition switch is OFF when “NG” is displayed on the ETACS-ECU, then “NG” is displayed on the column ECU.
(2) *
2
: If “NG” is displayed on the ETACS-ECU, then “NG” will be displayed on the front ECU, electric window main switch
(electric window module), and sunroof assembly (sunroof ECU).
(3) *
3
: If “NG” is displayed on the column ECU, then “NG” will be displayed on the multi-centre display.
ECU under
inspection
MUT display
Normal state
ECU state
Column switch
(column ECU)
Column ECU
OK*
1
Column switch, power supply,
earth, communications line : all
normal
ETACS-ECU
ETACS
OK
ETACS-ECU, power supply, earth,
communications line : all normal
Front ECU
Front ECU
OK*
2
Front ECU, power supply, earth,
communications line : all normal
Electric window main
switch (electric
window module)
P/W module
OK*
2
(Ignition switch:
ON)
Electric window main switch, power
supply, earth, communications line
: all normal
Sunroof motor
assembly (sunroof
ECU)
Sunroof ECU
OK*
2
Sunroof motor assembly, power
supply, earth, communications line
: all normal
Multi-centre display
Centre display
OK*
3
Multi-centre display, power supply,
earth, communications line : all
normal
ECUs relating to
parts of SWS other
than the above
All other ECU apart
from above
NG
ECU not installed
SWS – TROUBLESHOOTING
54B-9
5. Service data check service points
(1) The service data is checked using the MUT-II/III and the SWS monitor.
A service data check performed using the SWS monitor only relates to the signals present on the SWS communications
line and the door-to-door communications line. For information on the input signals which are not checked by the SWS
monitor, refer to the Pulse check service points (MUT-II/III or voltmeter) p.54B-20.
(2) The following input signals can be checked when the MUT-II/III and SWS monitor are connected.
Note:
If an abnormality arises during service data checking, then troubleshooting should be performed by referring to Confirming
problems in input signal check (Service data, Diagnosis by Function, or pulse check). (See p.54B-24)
(Service data chart)
• Column switch (column ECU)
Item No.
Check item
MUT display
Check conditions
Normal
state
Lighting switch : HEAD
ON
00
Headlight switch
Headlight SW
Lighting switch : not HEAD
OFF
Light switch : TAIL
ON
01
Tail light switch
Tail light SW
Light switch : OFF
OFF
Dimmer switch : ON
ON
02
Dimmer switch
Dimmer SW
Dimmer switch : OFF
OFF
Passing switch : ON
ON
03Passing switch
Passing SW
Passing switch : OFF
OFF
Wiper switch : INT
ON
05
Windscreen
intermittent wiper
switch
INT wiper SW
Wiper switch : not INT
OFF
Wiper switch : LO
ON
06
Windscreen low-
speed wiper switch
LO wiper SW
Wiper switch : not LO
OFF
Wiper switch : HI
ON
07
Windscreen high-
speed wiper switch
HI wiper SW
Wiper switch : not HI
OFF
Power switch : Mist
ON
08
Windscreen mist
wiper switch
Mist wiper SW
Power switch : not Mist
OFF
Windscreen washer switch : ON
ON
09
Windscreen washer
switch
Front washer
SW
Windscreen washer switch : OFF
OFF
Turn indicator light switch : RH
ON
10
RH turn indicator light
switch
RH turn indicator
light SW
Turn indicator light switch : not RH
OFF
Turn indicator light switch : LH
ON
11
LH turn indicator light
switch
LH turn indicator
light SW
Turn indicator light switch : not LH
OFF
Rear wiper switch : INT
ON
13Rear wiper switch
Rear wiper SW
Rear wiper switch : not INT
OFF
Rear wiper switch : Washer
ON
14
Rear washer switch
Rear washer SW
Rear wiper switch not Washer
OFF
SWS – TROUBLESHOOTING
54B-10
Item No.
Check item
MUT display
Check conditions
Normal state
Vehicle with intermittent volume
YES
15
Windscreen
intermittent wiper
volume on/off
Intermittent VOL
Vehicle without intermittent volume
NO
•
ETACS-ECU
Item No.
Check item
MUT display
Check conditions
Normal state
Ignition switch : ON or START
ON
30
Ignition switch (IG1)
Ignition SW IG1
Ignition switch : LOCK (OFF) or
ACC
OFF
Ignition switch : ACC or ON
ON
31
Ignition switch
(ACC)
Ignition SW
ACC
Ignition switch : LOCK (OFF) or
START
OFF
Driver’s door switch: ON (driver’s
door open)
ON
32
Driver’s door switch
Driver’s door
SW
Driver’s door switch: OFF (driver’s
door closed)
OFF
Ignition switch : ON or START
Enabled
33
Powered window
switch enabled
P/W SW
enabled
Ignition switch : ON or START
LOCK (OFF) or ACC
Enabled
Prohibited (after
approx. 30)
1. Keyless entry transmitter
LOCK switch : ON
2. Repeat keyless entry transmitter
LOCK switch : ON
(The second ON operation involves
pressing for at least 1 second within
30 seconds of the first operation)
Multi-close
(at instant of
switch operation
only)
1. Keyless entry transmitter
UNLOCK switch : ON
2. Repeat keyless entry transmitter
UNLOCK switch : ON
(The second ON operation involves
pressing for at least 1 second within
30 seconds of the first operation)
Multi-open
(at instant of
switch operation
only)
1. During multi-mode operation
2. Repeat keyless entry transmitter
Either switch : ON
Multi-stop (at
instant of switch
operation only)
34
Multi-mode keyless
entry
Multi-mode
keyless
All other conditions apart from the
above
Standby
1. Lighting switch : not OFF
2. Ignition switch : ON or START
LOCK (OFF) or ACC
3. Driver’s door switch : ON
(Driver’s door : open)
OFF
ON
(after about 1
second)
35
Headlight automatic
cut-off function
HD light auto
cut
Conditions for headlight automatic
cut-off function are not satisfied
OFF
1. Lighting switch :HEAD or TAIL
2. Fog light switch : ON
ON
36
Fog light lighting
request
Fog lamp
All other conditions apart from the
above
OFF
37
Windscreen
intermittent wiper
time
Wiper INT time
1. Ignition switch : ACC or ON
2. Operate intermittent wiper volume
to change interval between wiper
movements.
Display interval
time
corresponding to
intermittent wiper
volume
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