warning MITSUBISHI MONTERO 2000 Service Manual PDF

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-15
Trouble symptomInspection
procedureReference
page
Rear fog lampRear fog lamp do not illuminate when the rear fog lamp switch
is turned on.N-154B-40
Rear fog lamp do not go out when the headlamps and front fog
lamps are turned off while the rear fog lamp is on.N-254B-40
Room lampRoom lamp does not illuminate.O-154B-41
Room lamp dimming function does not work normally.O-254B-41
Center displayCenter display does not work normally.–GROUP 54A
– Center Dis-
play.
DEFECTS FOUND BY INPUT SIGNAL CHECK
If the input signal check finds a defect, follow the table below to check.
Trouble symptomInspection
procedureReference
page
Ignition switch (ACC) signal is not sent to the ETACS-ECU.P-154B-42
Ignition switch (IG1) signal is not sent to the ETACS-ECU.P-254B-42
Key reminder switch signal is not sent to the ETACS-ECU.P-354B-43
Hazard warning lamp switch signal is not sent to the ETACS-ECU.P-454B-43
Front fog lamp switch signal is not sent to the ETACS-ECU.P-554B-44
Rear fog lamp switch signal is not sent to the ETACS-ECU.P-654B-45
Back-up lamp switch signal is not sent to the ETACS-ECU.P-754B-45
Inhibitor switch (reverse) signal is not sent to the ETACS-ECU.P-854B-46
Rear wiper motor auto-stop signal is not sent to the ETACS-ECU.P-954B-46
Driver’s door switch signal is not sent to the ETACS-ECU.P-1054B-47
Door switches signal is not sent to the ETACS-ECU.
Front passenger’s or back door lock key cylinder switch signal is not sent to the
ETACS-ECU.P-1154B-48
Driver’s door lock actuator switch signal is not sent to the ETACS-ECU.P-1254B-48


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SWS -TroubleshootingSWS -Troubleshooting54B-17
INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
Inspection Procedure A-1
Communication with the MUT-II
is impossible.Probable cause
The harness wires between the ETACS-ECU power supply line or the
ETACS-ECU and the diagnosis connector may be defective.DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
Ye s
Ye s
Check the ETACS-ECU battery circuit. (Refer to P.54B-53, Inspec-
tion Procedure Q-1.)
No
NG
NG
Repair
NG
Check the harness wire between ETACS-ECU and body earth.
OK
OK
Replace the ETACS-ECU.
NG
Repair
NG
Check the harness wire between ETACS-ECU and diagnosis con-
nector.NG
Repair
OK
Check trouble symptoms.
Check following connectors:
D-226, D-222, D-23
OK
Check trouble symptoms.
Check following connectors:
D-224, D-209Measure at ETACS-ECU connector D-224.
DDisconnect connector and measure at J/B side.
DContinuity between terminal 20 and body earth.
OK:Continuity
Is communication with the MUT-
IIpossible when the ignition
switch is at the ON position?
Can MUT-
IIcommunicate with other system?NoCheck and repair the self-diagnosis system with the MUT-
II.
Inspection Procedure B-1
Buzzer: Light reminder warning buzzer function does not
work normally.Probable cause
The ETACS-ECU operates the light reminder warning buzzer function, based on
input signals from the following switches:
DIgnition switch (IG1)
DDriver’s door switch
DTail lampswitch
DHeadlamp switch
If the function does not work normally, a defect on the relevant circuit or the
ETACS-ECU may be suspected.DMalfunction of driver’s door switch
DMalfunction of column switch
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
NoCheck the ETACS-ECU battery circuit. (Refer to P.54B-53, Inspec-
tion Procedure Q-1.)
Ye s
NG
Check the defective input circuit. (Refer to P.54B-15, Defects Found
by Input Signal Check.)
OK
Replace the ETACS-ECU.
Do all of the following functions operate when the ignition key
is at the LOCK (OFF) position?
DHazard warninglamp
DRoom lamp
MUT-
IIinput signal check
DIgnition switch (IG1)
DDriver’s door switch
DTail lampswitch
DHeadlamp switch


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SWS -Troubleshooting54B-25
OK
Replace the ETACS-ECU.
NoCheck the central door locking system. (Refer to P54B-13, Trouble
Symptom Chart.)
Ye s
MUT-
IIinput signal check
DKey reminder switch
DDoor switches
DDriver’s door lock actuator switch
DTransmitterNGCheck the defective input circuit. (Refer to P.54B-15, Defects Found
by input Signal Check.)
Is the central door locking system operated normally?
Inspection Procedure E-2
Keyless entry system: The room lamp and hazard warning
lamps do not operate through the answerback function.Probable cause
The hazard warninglampanswerback function can be selected by the driver’s
desire (can be deactivated). However, the roomlampanswerback function can
not be deactivated. if all of these device do not operate through the answerback
function, the ETACS-ECU may be defective.DMalfunction of turn-signal lamp
DMalfunction of room lamp
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
Ye s
Replace the ETACS-ECU.
NG
Are the room lamp andhazard warning lamps operated normally?NoCheck the defective device. (Refer to P.54B-13, Trouble Symptom
Chart.)
Check trouble symptoms.
Activate the answerback functions. (Refer to GROUP 42 – Keyless
Entry System or P.54B-60.)
Inspection Procedure E-3
Keyless entry system: The encrypted code cannot be
registered.Probable cause
The ETACS-ECU actives the encrypted code registermode according to the
following switch signals.
DKey reminder switch
DHazard warninglampswitch
If the encrypted code registermode is notset, the relevant input signal circuit or
the ETACS-ECU may be defective.
If a transmitter can not be registered although the encrypted code registermode
is set, the transmitter or the ETACS-ECU may be defective.DMalfunction of key reminder switch
DMalfunction of hazard warninglampswitch
DMalfunction of transmitter
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
OK
Replace the ETACS-ECU.
Ye s
No
NG
Check the defective input circuit. (Refer to P.54B-15, Defects Found
by input Signal Check.)NG
Repair OKReplace the transmitter.
MUT-
IIinput signal check
DKey reminder switch
DHazard warninglampswitch
Is encrypted code registermodeset?Check the transmitter battery. (Refer to GROUP 42 - Keyless
Entry System.)


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SWS -Troubleshooting54B-37
Inspection Procedure K-6
Headlamp, tail lamp: Headlamps dimmer switch automat-
ic reset function does not work normally.Probable cause
The headlamp dimmerswitch automatic reset function is controlled by the
front-ECU. If a defect appears, the front-ECU may be defective.DMalfunction of front-ECU
Replace the front-ECU.
Inspection Procedure K-7
Headlamp, tail lamp: Daytime running lamp (DRL) function
does not work.Probable cause
The headlamp dimmerswitch auto-reset function is controlled by the front-ECU.
If a defect appears, the front-ECU may be defective.DMalfunction of ETACS-ECU
DMalfunction of front-ECU
DMalfunction of harness wire or connector.
NoCheck the defective device. (Refer to P.54B-13, Trouble Symptom
Chart.)
Ye s
NG
NG
Repair
NG
Check the harness wire between ETACS-ECU and body earth.
OK
Replace the ETACS-ECU or front-ECU.
OK
Check trouble symptoms.
Check the following connectors:
D-226, D-27Measure at ETACS-ECU connector D-226.
DDisconnect connector and measure at harness side.
DContinuity between terminal 29 and body earth.
OK:Continuity
Are the tail lamp and headlamps operated normally?
Inspection Procedure L-1
Flasher timer: Turn-signal lamp do not flash when the
turn-signal lamp switch is turned on.Probable cause
The ETACS-ECU makes the turn-signal lamps flash, based on the input signals
from the following switches:
DIgnition switch (IG1)
DTurn-signal lampswitch
If the turn-signal lamps do not flash normally, a defect on the relevant circuits or
the ETACS-ECU may be suspected.
If the hazard warning lamps also do not flash, a defect in the ETACS-ECU
power supply line specific to the turn-signal lamps is suspected.DMalfunction of column switch
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector.


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SWS -Troubleshooting54B-38
No
NG
OK
Replace the ETACS-
ECU.
NG
Check the defective input
circuit. (P.54B-15, De-
fects Found by Input Sig-
nal Check.)
NG
Repair
NG
Check the harness wire between ETACS-ECU and battery.
OK
NG
Repair
OK
Replace the ETACS-ECU.
NG
Check the harness wire between ETACS-ECU and turn-signal
lamps.NG
Repair
OK
Check trouble symptoms.
Check the following connectors:
D-224, D-213, D-210, D-218 , D-219 drive vehicles>
OK
Check trouble symptoms.
Check the following connectors:
D-224, D-223, D-27Measure at ETACS-ECU connector D-224.
DDisconnect connector and measure at J/B side.
DVoltage between terminal 11 and body earth.
OK:System voltage.
Is the hazard warninglamp operated normally?Ye sMUT-
IIinput signal check
DIgnition switch (IG1)
DTurn-signal lampswitch
NOTE
If only one of the turn-signal lamp does not flash, the harness wire between the lamp and ETACS-ECU
may be defective or the lamp bulb may be burned out. In this case, check the turn-signal lamp and
hazard warning lamp circuit.
Inspection Procedure L-2
Flasher timer: Hazard warning lamp do not flash when the
hazard warning lamp switch is turned on.Probable cause
The ETACS-ECU makes the turn-signal lamps flash, base on the input signals
from the hazard warninglampswitch.
If the turn-signal lamps do not flash normally, the hazard warninglampswitch
input circuit or the ETACS-ECU may be defective.DMalfunction of hazard warninglampswitch
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector.
OK
Replace the ETACS-ECU.
NoCheck the turn-signallampcircuit. (Refer to P.54B-37, Inspection
Procedure L-1.)
Ye s
NG
Check the ETACS-ECU battery circuit. (Refer to P.54B-53, Inspec-
tion Procedure Q-1.)
OK
NG
Check the hazard warninglampswitch input circuit. (Refer to
P.54B-43, Inspection Procedure P-4.)MUT-
IIinput signal check
DHazard warninglampswitch
Do all of the following functions operate when the ignition key
is at the LOCK (OFF) position?
DLight reminder warning function
DRoom lamp
Is the turn-signal lamp operated normally?


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SWS -Troubleshooting54B-41
Inspection Procedure O-1
Room lamp: Room lamp does not illuminate.Probable cause
If the room lampdoes not illuminate at all, the roomlamp bulb may be burned
out, or the power supply circuit or the ETACS-ECU may be defective.DMalfunction of room lamp
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
Ye s
NG
Repair
NG
No
NG
OK
Replace the room lamp.
NG
Repair
NG
Check the harness wire between roomlamp and fusiblelink (2).
OK
Replace the ETACS-
ECU.
NG
Repair
OK
Check trouble symptoms.
Check the following connectors:
F-07, D-29, D-207, D-223, D-27Measure at room lampconnector F-07.
DDisconnect connector and measure at harness side.
DVoltage between terminal 1 and body earth.
OK:System voltage
Check the harness wire between roomlamp and ETACS-ECU.
OK
Check trouble symptoms.
Check the following connectors:
F-07, D-29, D-207, D-224Does the roomlampturn on when the roomlampswitch is
set to the ON position?
Inspection Procedure O-2
Room lamp: Room lamp dimming function does not work
normally.Probable cause
The ETACS-ECU dims the roomlamp according to the inputsignals from the
following switches:
DIgnition switch (IG1)
DKey reminder switch
DDoor switches
DDriver’s door lock actuator switch
If the room lampdoes not bedimmed normally, the relevant input signalcircuit
or the ETACS-ECU may be defective.DMalfunction of key reminder switch
DMalfunction of driver’s door switch
DMalfunction of door switches
DMalfunction of driver’s door lock actuator switch
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
NGCheck the ETACS-ECU battery circuit. (Refer to P.54B-53, Inspec-
tion Procedure Q-1.)
OK
NG
Check the defective input circuit. (Refer to P.54B-15, Defects Found
by Input Signal Check.)
OK
Replace the ETACS-ECU.
MUT-
IIinput signal check
DIgnition switch (IG1)
DKey reminder switch
DDoor switches
DDriver’s door lock actuator switch
Do all of the following functions operate when the ignition key
is at the LOCK (OFF) position?
DLight reminder warning function
DCentral door locking system
DHazard warninglamp


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SWS -Troubleshooting54B-42
Inspection Procedure P-1
Ignition switch (ACC) signal is not sent to the ETACS-ECU.Probable cause
The ignition switch (ACC) input signal is used to operate the following devices. If
the signal fails, these devices will not work normally.
DWindshield wiper and washer
DRear wiper and washer
DHeadlamp washerDMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
NG
NG
Repair
NG
Check the harness wire between ETACS-ECU and ignition switch
(ACC).
OK
Check trouble symptoms.OK
Replace the ETACS-ECU.
Check the following connectors:
D-224, D-208Measure at ETACS-ECU connector D-224.
DDisconnect connector and measure at J/B side.
DTurn the ignition switch to ACC position.
DVoltage between terminal 2 and body earth.
OK:System voltage
Inspection Procedure P-2
Ignition switch (IG1) signal is not sent to the ETACS-ECU.Probable cause
The ignition switch (IG1) input signal is used to operate the following devices. If
the signal fails, these devices will not work normally.
DLight reminder warning buzzer function
DPower window timer function
DSunroof timer function
DIgnition key hole illumination lamp
DHeadlamp automatic shutdown function
DTurn-signal lamp
DRoom lamp dimming functionDMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
NG
NG
Repair
NG
Check the harness wire between ETACS-ECU and ignition switch
(IG1).
OK
Check trouble symptoms.OK
Replace the ETACS-ECU.
Check the following connectors:
D-224, D-208Measure at ETACS-ECU connector D-224.
DDisconnect connector and measure at J/B side.
DTurn the ignition switch to ON position.
DVoltage between terminal 16 and body earth.
OK:System voltage


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SWS -Troubleshooting54B-43
Inspection Procedure P-3
Key reminder switch signal is not sent to the ETACS-ECU.Probable cause
The key reminder switch input signal is used to operate the following devices. If
the signal fails, these devices will not work normally.
DForgotten key prevention function
DKeyless entry system
DIgnition key hole illuminaiton lamp
DRoom lamp dimming functionDMalfunction of key reminder switch
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
NG
Replace
OK
NG
NG
Repair
NG
Check the harness wire between key reminder switch and body
earth.
OK
NG
Repair
NG
NG
Repair
OK
Replace the ETACS-ECU.
Check the harness wire between key reminder switch and ETACS-
ECU.
OK
Check trouble symptoms.
Check the following connectors:
D-202, D-226
Measure at key reminder switch connector D-202.
DDisconnect connector and measure at harness side.
DContinuity between terminal 4 and body earth.
OK:Continuity
OK
Check trouble symptoms.
Check the following connectors:
D-202, D-30
Check the key reminder switch. (Refer to GROUP 54A – Ignition
Switch and Immobilizer System.)
Inspection Procedure P-4
Hazard warning lamp switch signal is not sent to the
ETACS-ECU.Probable cause
The hazard warninglampswitch input signal is used to operate the following
devices. If the signal fails, these devices will not work normally.
DHazard warninglamp
DKeyless entry system (Registering the encrypted code)DMalfunction of hazard warninglampswitch
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
NG
Replace
OK
NG
NG
Repair
NG
Check the harness wire between hazard warninglampswitch and
body earth.
OK
NG
Repair
NG
NG
Repair
OK
Replace the ETACS-ECU.
Check the harness wire between hazard warninglampswitch and
ETACS-ECU.
OK
Check trouble symptoms.
Check the following connectors:
D-104, D-226
Measure at hazard warninglampswitch connector D-104.
DDisconnect connector and measure at harness side.
DContinuity between terminal 2 and body earth.
OK:Continuity
OK
Check trouble symptoms.
Check the following connector:
D-104
Check the hazard warninglampswitch. (Refer to GROUP 54A
– Hazard WarningLampSwitch.)


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SWS -Troubleshooting54B-47
Inspection Procedure P-10
Driver’s door switch signal is not sent to the ETACS-ECU.Probable cause
Door switches signal is not sent to the ETACS-ECU.

The driver’s door switch is used to operate the following functions. If the signal
fails, these devices will not work normally.
DLight reminder warning buzzer function
DForgotten key prevention function
DPower window timer function
DIgnition key hole illumination lamp
DHeadlamp automatic shutdown function

The door switches is used to operate the following devices. If the signal fails,
these devices will not work normally.
DKeyless entry system
DRoom lamp dimming functionDMalfunction of driver’s, front passenger’s, rear or
back door switch
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
OK
NG
Repair
OK
NG
Repair
OK
Replace the ETACS-
ECU.
NG
Repair
NG
Check the harness wire between door switch and ETACS-ECU.
OKCheck trouble symptoms.
Check the following connectors :
Front L.H. door: F-20, D-26, D-218, D-224
Front R.H. door: F-03, D-124, D-209, D-224
Rear L.H. door: F-14, D-26, D-218, D-224
Rear R.H. door: F-10, D-124, D-209, D-224
Back door: G-03, D-26, D-218, D-224
Check the following connectors :
Front L.H. door: F-20, D-26, D-209, D-224
Front R.H. door: F-03, D-219, D-224
Rear L.H. door: F-14, D-26, D-209, D-224
Rear R.H. door: F-10, D-219, D-224
Back door: G-03, D-26, D-209, D-224
Check the installation of the door switch to the vehicle body.
Check the door switch. (Refer to GROUP 42 – Door or GROUP
42 - Back Door.)NG
Replace


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