headlamp MITSUBISHI LANCER EVOLUTION 2007 Service Workshop Manual

SWS -Troubleshooting54B-15
Inspection Procedure D-4
Passenger or rear power windows not responding to
power window main switch.
Probable cause
Either the power window main switch or the passenger’s or rear power window
motor assembly may be defective.DPower window main switch fault
DPassenger’s or rear power window motor assembly
fault
DHarness or connector fault
NG
Replace power window main switch.
OK
Replace power window motor assembly.Check the trouble symptoms.
NGCheck the harness between the power window motor
assembly and the power window main switch.NG
Repair
OK
Check the trouble symptoms.
YES
Check the following connectors:

E-20, C-24, C-110, E-07 (L.H. drive vehicles)
E-05, C-24, C-110, E-07 (R.H. drive vehicles)

E-10, D-12, C-133, C-24, E-07 (L.H. drive vehicles)
E-10, D-12, C-133, C-110, E-07 (R.H. drive vehicles)

E-25, D-02, C-112, C-24, E-07 (L.H. drive vehicles)
E-25, D-02, C-112, C-110, E-07 (R.H. drive vehicles)NG
Repair
OK
Do the power windows respond to the sub-switches?NORefer to P.54B-14, Inspection Procedure D-3.
Check the MUT-II input signals.
DPower window main switchNGCheck the power window main switch input circuit system
(Refer to P.54B-32, Inspection Procedure J-9).
Inspection Procedure D-5
Power window timer function not working normally.
Probable cause
The ETACS-ECU controls the headlamp automatic cut-off function based on input
signals from the following switches.
DIgnition switch (IG1)
DDriver’s door switch
If the power window timer function does not operate normally, one of the above
input circuit systems, the power window main switch, or the ETACS-ECU may
be defective.DDriver’s door switch fault
DPower window main switch fault
DETACS-ECU fault
DHarness or connector fault
NG
Replace power window main switch.
OK
Replace ETACS-ECU.Check the trouble symptoms.
Check the MUT-II input signals.
DIgnition switch (IG1)
DDriver’s door switch
DPower window main switchNGCheck the defective input circuit. (Refer to P.54B-8, Defects
Found by Input Signal Check).
Do all of the following functions operate when the ignition
switch is in the LOCK (OFF) position?
DCentral locking
DHazard lampsNOCheck ETACS-ECU battery power circuit system (Refer to
P.54B-33, Inspection Procedure K-1).
YES

SWS -Troubleshooting54B-20
Inspection Procedure F-1
Except for lighting switch “OFF” the headlamps only
respond to the “low-beam” position.
Probable cause
If the headlamps only go onto low-beam regardless of the switch position, the
headlamp fail - safe function is probably activated.DColumn switch fault
Dfront-ECU fault
DHarness or connector fault
NO
Replace front-ECU.
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).
Inspection Procedure F-2
The tail lamps do not work.
Probable cause
If none of the tail lamps light up, either the tail lamp switch input circuit system
or the front-ECU may be defective.DColumn switch fault
Dfront-ECU fault
DHarness or connector fault
NG
Repair
NG
Check the harness between the front - ECU and the battery,
and repair if necessary.
OK
Replace front-ECU.
OK
Check the trouble
symptoms.
OK
Measure at the front - ECU connector A-10X.
DDisconnect the connector and test on the relay box side.
DVoltage between terminal 5 and the body earth.
OK :System voltageNGCheck the following connector:A-10X
NO
Check the MUT-II input signals.
DTail lamp switchNGCheck the tail lamp switch input circuit system (Refer to
P.54B-31, Inspection Procedure J-7).
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).
NOTE
If only one of the tail lamps fails to light up, check the bulb and the harness between the front-ECU
and the lamp, and between the lamp and body earth.

SWS -Troubleshooting54B-21
Inspection Procedure F-3
The headlamps (low-beam) do not light.
Probable cause
If the (low-beam) headlamp on neither side lights up, either the headlamp switch
input circuit system or the front-ECU may be defective.DColumn switch fault
Dfront-ECU fault
DHarness or connector fault
NO
Check the MUT-II input signals.
DHeadlamp switchNGCheck the headlamp switch input circuit system (Refer to
P.54B-31, Inspection Procedure J-7).
NG
Repair
NG
Check the harness between the front-ECU and the battery,
and repair if necessary.
OK
Replace front-ECU.
OK
Check the trouble
symptoms.
OK
Measure at the front - ECU connector A-10X.
DDisconnect the connector and test on the relay box side.
DVoltage between terminal 3 and the body earth.
OK :System voltageNGCheck the following connector:A-10X
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).
NOTES:
1. If only one of the headlamps fails to light up, check the headlamp bulb and the harness between
the front-ECU and the headlamps, and between the headlamps and body earth.
2. When failure is detected on the harness from the front-ECU to the battery, check and repair the
front-ECU No. 4 terminal (A-10X) as well.
Inspection Procedure F-4
The headlamps (high-beam) do not light.
Probable cause
If the (high-beam) headlamp on neither side lights up, either the dimmer switch
input circuit system or the front-ECU may be defective.DColumn switch fault
Dfront-ECU fault
DHarness or connector fault
NG
Check the harness between the front-ECU and the battery,
and repair if necessary.OK
Check the trouble
symptoms.
NG
Repair
OK
Measure at the front - ECU connector A-10X.
DDisconnect the connector and test on the relay box side.
DVoltage between terminal 4 and the body earth.
OK :System voltageNGCheck the following connector:A-10X
YES
Check the MUT-II input signals.
DDimmer switchNGCheck the dimmer switch input circuit system (Refer to
P.54B-31, Inspection Procedure J-7).
OK
Replace front-ECU.
Are the headlamps (low-beam) operating normally?NOCheck the headlamps (low-beam) (Refer to P.54B-21,
Inspection Procedure F-3).
NOTE
1. If only one of the headlamps fails to light up, check the headlamp bulb and the harness between
the front-ECU and the headlamps, and between the headlamps and body earth.
2. When failure is detected on the harness from the front-ECU to the battery, check and repair the
front-ECU No. 3 terminal (A-10X) as well.

SWS -Troubleshooting54B-22
Inspection Procedure F-5
The headlamps (low or high-beam) do not work when the
passing switch is ON.
Probable cause
If the headlamps (low and high-beams) are normal, either the passing switch
input circuit system or the front-ECU may be defective.DColumn switch fault
Dfront-ECU fault
DHarness or connector fault
OK
Replace front-ECU.
YES
Check the MUT-II input signals.
DPassing switchNGCheck the passing switch input circuit system (Refer to
P.54B-31, Inspection Procedure J-7).
Are the headlamps (low and high-beams) operating normally?NOCheck the headlamps (Refer to P.54B-7, Trouble Symptom
Chart).
Inspection Procedure F-6
The headlamp automatic cut-off function is not working
normally.
Probable cause
The ETACS-ECU controls the headlamp automatic cut-off function based on input
signals from the following switches.
DIgnition switch (IG1)
DDriver’s door switch
DTail lamp switch
DHeadlamp switch
If the headlamp automatic cut-off function is not operating normally, either one of
the above input circuit systems, the front-ECU, or the ETACS-ECU may be
defective.DDriver’s door switch fault
DColumn switch fault
Dfront-ECU fault
DETACS-ECU fault
DHarness or connector fault
NG
Replace front-ECU.
NG
Replace ETACS-ECU.Check the trouble symptoms.
Check the trouble symptoms.
YES
NG
Check the defective input circuit. (Refer to P.54B-8, Defects
Found by Input Signal Check).
Are the tail lamps and headlamps operating normally?NOCheck the headlamps and tail lamps (Refer to P.54B-7,
Trouble Symptom Chart).
Check the MUT-II input signals.
DIgnition switch (IG1)
DDriver’s door switch
DTail lamp switch
DHeadlamp switch
OK

SWS -Troubleshooting54B-23
Inspection Procedure L-1
Rear fog lamp is not properly illuminated.
Probable cause
If the tail lamps and the headlamps are normal when the rear fog lamps are not
illuminated, failure may occur on the rear fog lamp switch input circuit, the rear
fog lamp relay, and the front-ECU or ETACS-ECU.DFog fog lamp switch inoperative
DRear fog lamp relay inoperative
Dfront-ECU fault
DETACS-ECU fault
DHarness or connector fault
Check the trouble symptoms.
NG
Repair
OK
Check the trouble symptoms.
YES
NG
Check the rear fog lamp switch input circuit (Refer to P.54B-8,
Inspection Procedure J-4).
Are the tail lamps and headlamps operating normally?NOCheck the headlamps and tail lamps (Refer to P.54B-7,
Trouble Symptom Chart).
OK
NG
Check the MUT-II input signals.
DRear fog lamp switch
Replace
OK
Check the rear fog lamp relay (Refer to GROUP 54A – Rear
Fog Lamp).
NGCheck the following connectors:
C-219, C-208, C-213
NG
Check and repair the harness from the rear fog lamp relay to
the battery.
OK
Check the trouble
symptoms.
Check the following connectors:
C-219, C-208, C-133, F-16
OK
Measure at the rear fog lamp relay connector C-219.
DDisconnect the connector and test on the junction box
side.
DVoltage between terminal 1 and the body earth
DVoltage between terminal 3 and the body earth
OK :System voltage
Replace ETACS-ECU.
NG
Replace front-ECU.
NG
RepairNG
NGCheck the harnesses of the rear fog lamp relay - the
front-ECU, and the rear fog lamp relay - the rear fog lamps.

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-29
Inspection Procedure J-5
No driver’s door switch signal input to ETACS-ECU.
Probable cause
No door switch signals input to ETACS-ECU.
Driver’s door switch
As the driver’s door switch 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
DRoom lamps
Door switches
As the door switch input signals are used to control the operation of the
following functions, any abnormality in these signals prevents the functions
operating normally.
DRoom lampsDDoor switch fault
DETACS-ECU fault
DHarness or connector fault
OK
Replace ETACS-ECU.
NG
Check the harness between the door switches and
ETACS-ECU.NG
Repair
OK
Check the trouble symptoms.
OK
Check the following connectors:
D-13, C-133, C-213, C-226
D-01, C-217, C-226
D-08, C-133, C-213, C-226
D-06, C-217, C-226NG
Repair
OK
Check the connection of the door switches to the body.NG
Repair
Check door switches (Refer to GROUP 42 - Doors).NG
Replace

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-33
Inspection Procedure K-1
When the ignition switch is in the LOCK (OFF) position,
no functions work normally.
Probable cause
Checking of the ETACS-ECU battery power supply circuit
system.Probable cause
As a fault in this circuit disables ETACS-ECU functions when the ignition switch
is in the LOCK (OFF) position, any abnormality in this signal prevents the
following functions operating.
DLights left ON reminder warning function
DPower window timer function
DHeadlamp automatic cut-off function
Or, the following functions operate when the ignition switch is in the ON position
only.
DDiagnosis code reading and input signal check by MUT-II.
DCentral locking
DHeadlamps, tail lamps
DHazard lamps
DRoom lampsDETACS-ECU fault
DHarness or connector fault
NG
RepairNG
Check the harness between ETACS-ECU and battery 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.
DVoltage between terminal 20 and body earth.
OK :System voltageNGCheck the following connectors:
C-226, C-209, C-05, C-135

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