2000 MITSUBISHI MONTERO low beam

SWS -General InformationSWS -General Information54B-5
HEADLAMP WASHER
If the headlamp washer switch at the steering
column is placed in the ON position when the ignition
switch is in the ACC or ON position and theheadlamp switch is in the ON position, the headlamp
washer drive signal is turned ON for 0.5 second.
IGNITION KEY HOLE ILLUMINATION LAMP
When the ignition switch is turned to LOCK (OFF) or
ACC position with the driver’s door opened, the
ignition key hole illumination lamp is illuminated.
If the door is closed in that state, the lamp goes out
after 30 seconds. Vehicles with keyless entrysystem, it illuminates for 30 seconds after the
ignition key is removed. In either case the lamp goes
out when the ignition switch is turned to ON position.
HEADLAMP
Headlamp Automatic Shutdown Function
If the ignition switch is turned to LOCK (OFF) or
ACC position, when the headlamps are on, the
headlamps will be switched off in three minutes.
If the driver’s door is opened within that three-minute
period, the headlamps will be switched off
automatically. This prevents the battery from
discharged.
In addition, if the headlamps are turned on when
the ignition switch is at LOCK (OFF) or ACC position,
the headlamps will not be switched off.Headlamp Dimmer Switch Automatic Reset
Function
This function allows the dimmer switch to be reset
to the low-beam position whenever the headlamp
switch is turned ON.
Daytime Running Lamp (DRL) Function

If the ignition switch is turned to ON when the
headlamps and tail lamps are off, the headlamps
(low-beam) and tail lamps turn on.
FLASHER TIMER
Turn-signal Lamp
When the ignition switch is turned to ON position
and turn-signal lamp switch is placed in the ON
position for right or left turn signaling, the system
generates turn-signal lamp drive signals (flashing
signals).
The system also notifies of a blown turn-signal lamp
bulb by shortening the flashing intervals of the
corresponding indicator lamp.Hazard Warning Lamp
The system detects a change from ON to OFF
of the hazard lamp input signal and activates the
hazard lamps if they are not in operation or
deactivates the lamps if they are operating (reversal
of state between activation and deactivation).
FRONT FOG LAMP
If the front fog lamp switch is turned ON at the
condition that the headlamp or the tail lamp is turned
ON (including the illumination by the automatic
lighting function), the front fog lamp is turned ON.Whenever the tail lamps are turned on at the next
time, the front fog lamps will always be off regardless
of the switch positions. In addition, if the tail lamp
is switched off by the automatic lighting system,
the front fog lamp will also be switched off. However,
the front fog lamp will be illuminated when the tail
lamp is switched on.


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SWS -TroubleshootingSWS -Troubleshooting54B-14
Trouble symptomInspection
procedureReference
page
Windshield wiperWindshield wiper does not operate.G-154B-28
and washer
Windshield wiper does not stop at the predetermined park
position.G-254B-29
Any of the windshield wiper switch positions is defective.G-354B-29
Windshield intermittent wiper interval cannot be adjusted.G-454B-30
Windshield washer does not work.G-554B-30
Rear wiper andRear wiper does not work at all.H-154B-31
washer
Rear wiper does not stop at the predetermined park position.H-254B-31
When the shift lever orselector lever ismoved
to R position during the rear wiper operation, the rear wiper
does not operate at the continuous mode.H-354B-32
Rear washer does not work.H-454B-32
Headlamp washerHeadlamp washer does not work.I-154B-33
Ignition key hole
illumination lampIgnition key hole illumination lamp does not work normally.J-154B-34
Headlamp, tailTail lamp do not illuminate.K-154B-34
lamp
Headlamps (low-beam) do not illuminate.K-254B-35
Headlamps (high-beam) do not illuminate.K-354B-35
Headlamps do not illuminate when the passing switch is
operated.K-454B-36
The headlamp automatic shutdown function does not work
normally.K-554B-36
Headlamp dimmer switch automatic reset function does not
work normally.K-654B-37
Daytime running lamp (DRL) function does not work.K-754B-37
Flasher timerTurn-signal lamp do not flash when the turn-signal lamp switch
is turned on.L-154B-37
Hazard warning lamps do not flash when the hazard warning
lamp switch is turned on.L-254B-38
Front fog lampFront fog lamps do not illuminate when the front fog lamp
switch is turned on.M-154B-39
Front fog lamp do not go out when the tail lamps are turned off
while the front fog lamps are on.M-254B-39


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SWS -Troubleshooting54B-35
Inspection Procedure K-2
Headlamp, tail lamp: Headlamps (low-beam) do not
illuminate.Probable cause
The column switch or the front-ECU may be defective.DMalfunction of column switch
DMalfunction of front-ECU
DMalfunction of harness wire or connector
OK
Replace the front-ECU.
No
NG
Check theheadlampswitch input circuit. (Refer to P.54B-49, Inspec-
tion Procedure P-13.)
Ye sCarry out troubleshooting while referring to the Diagnosis Code
Chart on P.54B-9.
NG
Repair
NG
Check the harness wire between front-ECU and battery.
OK
Check trouble symptoms.
OK
NG
Check the following connector:
A-07XMeasure at front-ECU connector A-07X.
DDisconnect connector and measure at relay box side.
DVoltage between terminal 3 and body earth.
OK:System voltage
DVoltage between terminal 4 and body earth.
OK:System voltage
MUT-
IIinput signal check
DHeadlamp switch
Is a diagnosis code output when the ignition switch is at the
OFF (LOCK) position?
NOTE
If only one of the headlamps (low-beam) does not illuminate, the harness wire between the headlamp
and front-ECU may be defective or the headlamp bulb may be burned out. In this case, check the headlamp
circuit.
Inspection Procedure K-3
Headlamp, tail lamp: Headlamps (high-beam) do not
illuminate.Probable cause
The column switch or the front-ECU is suspected to be defective.DMalfunction of column switch
DMalfunction of front-ECU
DMalfunction of harness wire or connector
OK
Replace the front-ECU.
Is the headlamps (low-beam) operated normally?NoCheck theheadlamp (low-beam)circuit. (Refer to P.54B-35, Inspec-
tion Procedure K-2.)
Ye s
MUT-
IIinput signal check
DDimmer switchNGCheck the dimmer switch input circuit. (Refer to P.54B-49, Inspection
Procedure P-13.)
NOTE
If only one of the headlamps (high-beam) does not illuminate, the harness wire between the headlamp
and front-ECU may be defective or the headlamp bulb may be burned out. In this case, check the headlamp
circuit.


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SWS -Troubleshooting54B-36
Inspection Procedure K-4
Headlamp, tail lamp: Headlamps do not illuminate when
the passing switch is operated.Probable cause
If the headlamps (low-beam and high-beam) are defective, the column switch or
the front-ECU is suspected to be defective.DMalfunction of column switch
DMalfunction of front-ECU
DMalfunction of harness wire or connector
OK
Replace the front-ECU.
Is the headlamps (low-beam and high-beam) operated normally?NoCheck the defective circuit. (Refer to P.54B-13, Trouble Symptom
Chart.)
Ye s
MUT-
IIinput signal check
DPassing switchNGCheck the passing switch input circuit. (Refer to P.54B-49, Inspec-
tion Procedure P-13.)
Inspection Procedure K-5
Headlamp, tail lamp: The headlamp automatic shutdown
function does not work normally.Probable cause
The ETACS-ECU operates theheadlamp automatic shutdown function,based on
the signals from the following switches
DIgnition switch (IG1)
DDriver’s door switch
DHeadlamp switch
If the head lamp automatic shutdown functiondoes work normally, a defect on
relevant input circuits, the ETACS-ECU or the front-ECU is suspected.DMalfunction of driver’s door switch
DMalfunction of column switch.
DMalfunction of front-ECU
DMalfunction of harness wire or connector
No
NG
Check the defective input circuit. (Refer to P.54B-15, Defects Found
by Input Signal Check.)
Ye sCarry out troubleshooting while referring to the Diagnosis Code
Chart on P.54B-9.
NG
Replace the front-ECU.
OK
Replace the ETACS-ECU.Check trouble symptoms.
MUT-
IIinput signal check
DIgnition switch (IG1)
DDriver’s door
DHeadlamp switch
Is a diagnosis code output when the ignition switch is at the
OFF (LOCK) position?


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