wiper MITSUBISHI LANCER EVOLUTION 2007 Service Owner's Guide

SWS -Troubleshooting54B-19
Inspection Procedure E-5
The windshield washer does not work at all.
Probable cause
Either the windshield washer switch input circuit system, the windshield washer
motor, or the front-ECU may be defective.DWindshield washer motor fault
DColumn switch fault
Dfront-ECU fault
DHarness or connector fault
NG
Repair
NG
Check the harness between the windshield washer motor and
body earth, and repair if necessary.NG
Repair
OK
Replace front-ECU.
NG
Check the harness between the windshield washer motor and
the front-ECU.NG
Repair
OK
Check the trouble
symptoms.
OK
Check the following connectors:F-21, C-112, C-125, A-11X
OK
Check the trouble
symptoms.
OK
Measure at the windshield washer motor connector F-21.
DDisconnect the connector and test on the harness side.
DContinuity between terminal 1 and body earth
OK :Continuity confirmed.NGCheck the following connector:F-21
OK
Check the windshield washer motor (Refer to GROUP 51 -
Windshield Wipers and Washer).NG
Replace
YES
Check the MUT-II input signals.
DWindshield washer switchNGCheck the windshield washer switch input circuit system
(Refer to P.54B-31, Inspection Procedure J-8).
Is the windshield wiper operating normally?NOCheck windshield wipers (Refer to P.54B-7, Trouble Symptom
Chart).
Inspection Procedure E-6
Windshield wipers are not operated with the switch in INT,
WASHER and MIST positions, and operated in a low mode
with the switch in Lo and Hi positions.
Probable cause
Fail-safe function may be operated due to the fault on SWS communication line.
Fail-safe function is activated with the ignition switch in ACC position when the
ignition switch ACC signal is not input due to the open circuit, etc.DColumn switch fault
Dfront-ECU fault
DETACS-ECU fault
DHarness or connector fault
NG
Replace front-ECU.
Check the trouble symptoms.
Check the ignition switch (ACC) input circuit system (Refer to
P.54B-26, Inspection Procedure J-1)NOCheck the MUT-II input signals.
DIgnition switch (ACC)
YES
NG
Replace column switch.
Check the trouble symptoms.
NG
Replace ETACS-ECU.Check the trouble symptoms.

SWS -Troubleshooting54B-26
Inspection Procedure J-1
No ignition switch (ACC) signal input to ETACS-ECU.
Probable cause
As the ignition switch (ACC) input signal is used to control the operation of the
following functions, any abnormality in this signal prevents these functions
operating normally.
DWindshield wiper and washerDETACS-ECU fault
DHarness or connector fault
NG
Repair
NG
Check the harness between the ETACS-ECU and the ignition
switch (ACC), and repair if necessary.
OK
Replace ETACS-ECU.
OK
Check the trouble
symptoms.
Measure at ETACS-ECU connector C-226.
DDisconnect the connector and test on the junction box
side.
DIgnition switch: ACC
DVoltage between terminal 18 and body earth.
OK :System voltageNGCheck the following connectors:C-226, C-210
Inspection Procedure J-2
No ignition switch (IG1) signal input to ETACS-ECU.
Probable cause
As the ignition switch (IG1) input signal is used to control the operation of the
following functions, any abnormality in this signal prevents these functions
operating normally.
DLights left ON reminder warning function
DPower window timer function
DHeadlamp automatic cut-off function
DTurn signal lamps
DRoom lampsDETACS-ECU fault
DHarness or connector fault
NG
Repair
NG
Check the harness between ETACS-ECU and the ignition
switch (IG1), and repair if necessary.
OK
Replace ETACS-ECU.
OK
Check the trouble
symptoms.
Measure at ETACS-ECU connector C-226.
DDisconnect the connector and test on the junction box
side.
DIgnition switch: ON
DVoltage between terminal 8 and body earth.
OK :System voltageNGCheck the following connectors:C-226, C-210

SWS -Troubleshooting54B-31
Inspection Procedure J-7
Column switches:
DNo tail lamp switch signal input to ETACS-ECU.
DNo headlamp switch signal input to ETACS-ECU.
DNo dimmer switch signal input to ETACS-ECU.
DNo passing switch signal input to ETACS-ECU.
DNo turn signal lamp left-hand switch signal input to
ETACS-ECU.
DNo turn signal lamp right-hand switch signal input to
ETACS-ECU.
Probable cause
As the (lighting) column switch input signals control the operation of the following
functions, any abnormality in the signals prevents these functions operating
normally.
DLights left ON reminder warning function
DHeadlamps, tail lamps
DTurn signal lampsDColumn switch fault
DETACS-ECU fault
DHarness or connector fault
NG
Replace ETACS-ECU.
NO
Replace column switch.Check the trouble symptoms.
OK
MUT-II diagnosis code
When the ignition switch is in the LOCK (OFF) position, is the
diagnosis code output?YESDiagnosis Code Chart (Refer to P.54B-3).
Check the (lighting) column switches (Refer to GROUP 54A).NG
Replace
Inspection Procedure J-8
Column switches:
DNo windshield mist wiper switch signal input to
ETACS-ECU.
DNo windshield wiper intermittent switch signal
input to ETACS-ECU.
DNo windshield low-speed wiper switch signal input
to ETACS-ECU.
DNo windshield high-speed wiper switch input to
ETACS-ECU.
DNo windshield washer switch signal input to
ETACS-ECU.
Probable cause
As the column switch (wiper/washer switch) input signal is used to
control the following functions, any failure prevents these functions from
operating properly.
DWindshield wiper and washerDColumn switch fault
DETACS-ECU fault
DHarness or connector fault
NG
Replace ETACS-ECU.
NO
Replace column switch.Check the trouble symptoms.
MUT-II diagnosis code
When the ignition switch is in the LOCK (OFF) position, is the
diagnosis code output?YESDiagnosis Code Chart (Refer to P.54B-3).

SWS -Troubleshooting54B-36
COLUMN SWITCHES
Terminal
No.Check itemChecking requirementsNormal condition
1Battery power supplyAny timeSystem voltage
2SWS request signal inputAny time0 - 12 V (pulse
signal)
3SWS communication lineAny time0 - 12 V (pulse
signal)
4EarthAny time0V
5-7---
8Windshield wiper switch backup
outputWindshield wiper low or high-speed
switch: ON0V
9Ignition switch (IG1) power supplyIgnition switch: ONSystem voltage
10Headlamp switch backup outputHeadlamp switch: ON0V
FRONT-ECU
NOTE
See the list below for data on the front-ECU terminals. As the front-ECU connects directly onto the relay
box, the voltages cannot be measured.
Terminal
No.Check itemChecking requirementsNormal condition
1---
2Headlamp (high-beam) outputWhen headlamp (high-beam) ONSystem voltage
3, 4Battery power supply (for headlamps)Any timeSystem voltage
5Battery power supply (for tail lamps)Any timeSystem voltage
6Headlamp (low-beam) outputWhen headlamp (low-beam) ONSystem voltage
7Battery power supply (for ECU)Any timeSystem voltage
8Tail lamp outputWhen tail lamps ONSystem voltage
9-11---
21Windshield washer outputWhen windshield washer operatingSystem voltage
22SWS communication lineAny time0 - 12 V (pulse
signal)
23Windshield wiper automatic STOP
signal inputWhen windshield wiper operatingSystem voltage
24Ignition switch (ACC) power supplyIgnition switch: ACCSystem voltage
25Headlamp switch backup inputHeadlamp switch: ON0V
26Windshield wiper switch backup inputWindshield wiper low or high-speed
switch: ON0V
27Windshield wiper (low-speed) outputWhen windshield wiper operating (at
low-speed)System voltage
28Windshield wiper (high-speed) outputWhen windshield wiper operating (at
high-speed)System voltage