high beam MITSUBISHI MONTERO 2000 Service Repair Manual

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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