MITSUBISHI MONTERO 2000 Service Repair Manual
Manufacturer: MITSUBISHI, Model Year: 2000, Model line: MONTERO, Model: MITSUBISHI MONTERO 2000Pages: 1839, PDF Size: 29.19 MB
Page 1731 of 1839
SWS -Troubleshooting54B-45
Inspection Procedure P-6
Rear fog lamp switch signal is not sent to the ETACS-ECU.Probable cause
The rear foglampswitch input signal is used to operate the rear fog lamp. If
the signal fails, rear foglampwill not work normally.DMalfunction of fog lampswitch
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
NG
Replace
OK
NG
NG
Repair
NG
Check the harness wire between foglampswitch and body earth.
OK
NG
Repair
NG
NG
Repair
OK
Replace the ETACS-ECU.
Check the harness wire between foglampswitch and ETACS-ECU.
OK
Check trouble symptoms.
Check the following connectors:
D-141, D-226
OK
Check trouble symptoms.
Check the following connectors:
D-141, D-30Measure at fog lampswitch connector D-141.
DDisconnect connector and measure at harness side.
DContinuity between terminal 6 and body earth.
OK:Continuity
Check the rear foglampswitch. (Refer to GROUP 54A – Fog
Lamp.)
Inspection Procedure P-7
Back-up lamp switch signal is not sent to the ETACS-ECU.
The back-uplampswitch input signal is used to operate the rear wiper. If the
signal is an error, the rear wiper will not operate consecutively twice when the
rear wiper is on and the shift lever is moved to R position.DMalfunction of back-uplampswitch
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
NG
Replace
OK
NG
NG
Repair
NG
Check the harness wire between back-uplampswitch and ignition
switch (IG1).
OK
NG
Repair
NG
NG
Repair
OK
Replace the ETACS-ECU.
OK
Check trouble symptoms.
Check the following connectors:
C-18, E-115, D-32, D-213, D-208
Check the harness wire between back-uplampswitch and ETACS-
ECU.
OK
Check trouble symptoms.
Check the following connectors:
C-18, E-113, D-128
Measure at back-uplampswitch connector C-18.
DDisconnect connector and measure at harness side.
DTurn the ignition switch to ON position.
DVoltage between terminal 2 and body earth.
OK:System voltage
Check the back-uplampswitch.
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Page 1732 of 1839
Page 1733 of 1839
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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Page 1734 of 1839
SWS -Troubleshooting54B-48
Inspection Procedure P-11
Front passenger’s or back door lock key cylinder switch
signal is not sent to the ETACS-ECU.Probable cause
The front passenger’s and back door lock key cylinder switch input signal is
used to operate the central door locking system. If the signal fails, central door
locking system will not work normally.DMalfunction of front passenger’s or back door lock
key cylinder switch
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
NG
Replace
OK
OK
Replace the ETACS-ECU.
OK
NG
NG
Repair
NG
RepairOK
NG
Check the harness wire between door lock key cylinder switch
and body earth.
NG
Check the harness wire between door lock key cylinder switch
and ETACS-ECU.NG
Repair
OK
Check trouble symptoms.
Check the following connectors:
Front passenger’s door: H-17, D-15, D-225
Back door: I-05, G-05, D-124, D-225
Check trouble symptoms.
Check the following connectors:
Front passenger’s door: H-17, D-15
Back door: I-05Measure at door lock key cylinder switch connector H-17
DDisconnect connector and measure at harness side
DContinuity between terminal 2 and body earth.
OK:Continuity
Check the door lock key cylinder switch. (Refer to GROUP 42
– Door or GROUP 42 - Back Door.)
Inspection Procedure P-12
Driver’s door lock actuator switch signal is not sent to the
ETACS-ECU.Probable cause
The driver’s door lock actuator switch is used to operate the following systems
or functions. If the signal fails, these systems or function will not work normally.
DCentral door locking system
DForgotten key prevention function
DKeyless entry systemDMalfunction of driver’s door lock actuator
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
OK
Replace the ETACS-ECU.
OK
NG
NG
Repair
NG
Repair
NG
Check the harness wire between driver’s door lock actuator and
body earth.
NG
Check the harness wire between driver’s door lock actuator and
ETACS-ECU.NG
Repair
OK
Check trouble symptoms.
OK
Check the following connectors:
H-03
OK
Check trouble symptoms.
Check the following connectors:
H-03
or H-18
DDisconnect connector and measure at harness side
DContinuity between terminal 1
OK:Continuity
Check the door lock actuator switch. (Refer to GROUP 42 – Door
or Back Door.)NG
Replace
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Page 1735 of 1839
SWS -Troubleshooting54B-49
Inspection Procedure P-13
Column switch:
D
Tail lamp switch signal is not sent to the ETACS-ECU.
D
Headlamp switch signal is not sent to the ETACS-ECU.
D
Dimmer switch signal is not sent to the ETACS-ECU.
D
Passing switch signal is not sent to the ETACS-ECU.
D
Turn-signal lamp switch signal is not sent to the
ETACS-ECU.
D
Headlamp washer switch is not sent to the ETACS-ECU.
Probable cause
The column switch (lighting switch) is used to operate the following systems or
functions. If the signal fails, these systems or function will not work normally.
DHeadlamp washer
DHeadlamp, tail lamp
DTurn-signal lamp
DFront fog lamp
DRear foglampDMalfunction of column switch
DMalfunction of ETACS-ECU
NG
Replace the ETACS-ECU.
Ye sCarry out troubleshooting while referring to the Diagnosis Code
Chart on P.54B-9.
Check trouble symptoms.
No
Replace the column switch (lighting switch).
OK
Replace the column switch (wiper and washer switch).
No
Check the column switch (lighting switch and switch body). (Refer
to GROUP 54A - Column Switch.)NG
Replace
Is a diagnosis code output when the ignition switch is at the
OFF (LOCK) position?
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Page 1736 of 1839
SWS -Troubleshooting54B-50
Inspection Procedure P-14
Column switch:
D
Windshield mist wiper switch signal is not sent to the
ETACS-ECU.
D
Windshield intermittent wiper switch signal is not sent to
the ETACS-ECU.
D
Windshield low-speed wiper switch signal is not sent to the
ETACS-ECU.
D
Windshield high-speed wiper switch signal is not sent to
the ETACS-ECU.
D
Windshield washer switch is not sent to the ETACS-ECU.
D
Rear wiper switch is not sent to the ETACS-ECU.
D
Rear washer is not sent to the ETACS-ECU.
Probable cause
The column switch (wiper and washer switch) is used to operate the following
systems or functions. If the signal fails, these systems or function will not work
normally.
DWindshield wiper and washer
DRear wiper and washerDMalfunction of column switch
DMalfunction of ETACS-ECU
NG
Replace the ETACS-ECU.
Ye sCarry out troubleshooting while referring to the Diagnosis Code
Chart on P.54B-9.
Check trouble symptoms.
No
Replace the column switch (wiper and washer switch).
OK
Replace the column switch (lighting switch).
No
Check the column switch (wiper and washer switch and switch
body). (Refer to GROUP 51 - Windshield Wiper and Washer and
GROUP 54A - Column Switch.)NG
Replace
Is a diagnosis code output when the ignition switch is at the
OFF (LOCK) position?
Inspection Procedure P-15
Column switch: Windshield intermittent wiper interval
adjusting knob signal is not sent to the ETACS-ECU.Probable cause
If the windshield intermittent wiper interval adjusting knob is defective the
windshield intermittent wiper interval can not be adjusted.DMalfunction of column switch
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
OK
Replace the ETACS-ECU.
NG
Check the harness wire between column switch and ETACS-ECU.NG
Repair
OK
Check trouble symptoms.
OK
Check the following connectors:
D-203, D-226NG
Repair
Check the windshield intermittent wiper interval adjusting knob.
(Refer to GROUP 51 - Windshield Wiper and Washer.)NG
Replace
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Page 1737 of 1839
SWS -Troubleshooting54B-51
Inspection Procedure P-16
Power window main switch: Any switch signal is not sent
to the ETACS-ECU.Probable cause
If there is a problem with communication between the power windowmainswitch
and the ETACS-ECU, the input signal check for the power windowmainswitch
can no longer be carried out. In addition, the power window timer function will
also stop working.DMalfunction of power windowmainswitch
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector
Ye s
NG
Repair
NG
No
(1) NG
NG
Repair
NG
Check the harness wire between power windowmainswitch and
power window relay.
OK
Replace the power windowmainswitch.
NG
Repair
NG
Check the harness wire between power windowmainswitch and
body earth.
NG
Repair
Check trouble symptoms.NGReplace the ETACS-
ECU.
OK
Check trouble symptoms.
(2) NG
Check the following connectors:
H-05, D-25
OK
Check trouble symptoms.
Check the following connectors:
H-05, H-25, D-208, D-221Measure at power windowmainswitch connector H-05.
DDisconnect connector and measure at harness side.
DTurn the ignition switch to ON position.
(1) Voltage between terminal 1
5
OK:System voltage
(2) Continuity between terminal 5
or 3
OK:Continuity
OK
Replace the power win-
dow mainswitch
Check the harness wire between power windowmainswitch and
ETACS-ECU.
OK
Check trouble symptoms.
Check the following connectors:
H-05, D-25, D-31, D-226Can the driver’s side power window be operated by the power
window mainswitch?
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Page 1738 of 1839
SWS -Troubleshooting54B-52
Inspection Procedure P-17
Transmitter: Any switch signal is not sent to the
ETACS-ECU.Probable cause
The transmitter input signal is used to operate the keyless entry system. If the
signal fails, keyless entry will not work normally.DMalfunction of transmitter
DMalfunction of ETACS-ECU
Ye s
NG
Replace
OK
Replace the defective transmitter.
OK
Use an other transmitter to register the secret code. (Refer to
GROUP 42 – Keyless Entry System.)NGReplace the ETACS-ECU.
Check the transmitter battery. (Refer to GROUP 42 – Keyless
Entry System.)
Has the encrypted codebeen registered properly?NoRe-register the encrypted code. (Refer to GROUP 42 – Keyless
Entry System.)
Inspection Procedure P-18
Sunroof switch: Any switch signal is not sent to the
ETACS-ECU.Probable cause
If there is a problem with communication between the sunroof motor assembly
and the ETACS-ECU, the input signal check for the sunroof switch can no
longer be carried out. In addition, the sunroof timer function will also stop
working.DMalfunction of sunroof switch
DMalfunction of sunroof motor assembly
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector.
Ye s
NG
Repair
NG
Replace the ETACS-ECU.
OK
Replace the sunroof motor assembly.Check trouble symptoms.
NG
Check the harness wire between sunroof motor assembly and
ETACS-ECU.NG
Repair
OK
Check trouble symptoms.
Check the following connectors:
F-06, F-02, D-29, D-31, D-226
Is the sunroof operated normally?NoCheck the sunroof. (Refer to P.54B-13, Trouble Symptom
Chart.)
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Page 1739 of 1839
SWS -Troubleshooting54B-53
Inspection Procedure P-19
Center display: Any switch signal is not sent to the
ETACS-ECU.Probable cause
The cause is probably a malfunction of the center display or the ETACS-ECU.DMalfunction of center display
DMalfunction of ETACS-ECU
DMalfunction of harness wire or connector.
Ye s
NG
Repair
NG
Replace the ETACS-ECU.
OK
Replace the center display.Check trouble symptoms.
NG
Check the harness wire between center display and ETACS-ECU.NG
Repair
OK
Check trouble symptoms.
Check the following connectors:
D-06, D-31, D-226
Is the center display operated normally?NoCarry out troubleshooting for the center display. (Refer to
GROUP 54A – Center Display.)
Inspection Procedure Q-1
Check the circuit (power supply line) from the battery to
the ETACS-ECU.Probable cause
If that power supply circuit is defective, the circuit flowing through the ignition
switch (IG1) will function as a back-up circuit. In this case, the following
functions will not work when the ignition switch is at LOCK (OFF) position.
DIgnition key reminder warning buzzer function
DCentral door lock ing system
DIgnition key hole illumination lamp
DHazard warninglamp
DRoom lampDMalfunction of ETACS-ECU
DMalfunction of harness wire or connector.
NG
NG
Repair
NG
Check the harness wire between ETACS-ECU and fusible link
(2).
OK
Replace the ETACS-ECU.
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 6 and body earth.
OK:System voltage
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Page 1740 of 1839
C
HEC K AT EC U TE R M IN ALS
1 . ETA CS-E C U C
heck it e m s C
heckin g re quir e m ents N
orm alco ndit io n 1 R
ear w ip er outp ut W
hen re ar w ip er is opera te d S
yste m vo lt a ge 2 I
g nit io n sw it c h (A C C)pow er su pply I
g nit io n sw it c h : A C C S
yste m vo lt a ge 3 R
ear w ash er outp ut W
hen re ar w ash er is opera te d S
yste m vo lt a ge 4 D
oor lo ck outp ut W
hen th e door lo ck actu ato rs are
w ork in g to lo ck S
yste m vo lt a ge 5 R
ear w ip er auto -s to p sig nalin put W
hen re ar w ip er is opera te d S
yste m vo lt a ge 6 B
atte ry pow er su pply (fo r E C U) A
lw ays S
yste m vo lt a ge 7 D
oor sw it c h es sig nalin put E
it h er door sw it c h : O N (D oor open) 0
V 8 P
ow er w in dow re la y outp ut W
hen pow er w in dow ca n be opera te d 2
V or le ss 9 D
riv e r’s door sw it c h sig nalin put D
riv e r’s door sw it c h :O N (D riv e r’s door
o pen) 0
V 1
1 B
atte ry pow er su pply (fo r tu rn -s ig nal
l a m p) A
lw ays S
yste m vo lt a ge 1
2 B
atte ry pow er su pply (fo r ce ntr a l door
l o ck) A
lw ays S
yste m vo lt a ge 1
4 T
urn -s ig nalla m p (R .H .) outp ut W
hen tu rn -s ig nalla m p (L .H .) is lig hte d S
yste m vo lt a ge 1
5 T
urn -s ig nalla m p (L .H .) outp ut W
hen tu rn -s ig nalla m p(R .H .) is lig hte d S
yste m vo lt a ge 1
6 I
g nit io n sw it c h (IG 1) pow er su pply I
g nit io n sw it c h : O N S
yste m vo lt a ge 1
7 D
oor unlo ck outp ut W
hen door lo ck actu ato rs are work in g
t o unlo ck S
yste m vo lt a ge 1
8 R
oom la m p outp ut W
hen ro om la m p is lig hte d 2
V or le ss 2
0 G
ro und (fo r E C U) A
lw ays 0
V 2
1 S
W S co m munic a tio n lin e A
lw ays 0
-12 V (p uls e
s ig nal) 2
2 D
ia gnosis in dic a tio n se le ctio n in put W
hen M UT-II is co nnecte d 0
V 2
3 G
ro und (fo r se nso r) A
lw ays 0
V 2
4 F
ro nt fo g la m p sw it c h sig nalin put F
ro nt fo g la m p sw it c h :O N 0
V 2
5 R
ear fo g la m p sw it c h sig nalin put R
ear fo g la m p sw it c h : O N 0
V