key MITSUBISHI MONTERO 2000 Service Owner's Manual
[x] Cancel search | Manufacturer: MITSUBISHI, Model Year: 2000, Model line: MONTERO, Model: MITSUBISHI MONTERO 2000Pages: 1839, PDF Size: 29.19 MB
Page 1586 of 1839
CHASSIS ELECTRICAL-Ignition Switch and Immobilizer <4D56>54A-16
INSPECTION PROCEDURES FOR EACH TROUBLE SYMPTOM
Inspection procedure 1
The ignition keys cannot be registered using the MUT-II.
Probable cause
The ignition key has not been registered with the immobilizer-ECU.
Or that there is a problem with the immobilizer-ECU.D
Malfunction of ignition key
D
Malfunction of harness or connector
D
Malfunction of immobilizer-ECU
OK
Check the trouble symptoms.
NG
Register the ignition key.
YES
NO YESIs a normal diagnosis code output?
NOCan none of the ignitionkeys beregistered?Replace the ignition key that cannot be registered.
To Chart Classified by Diagnosis Codes (Refer to P.54A-14.)
OKImmobilizer-ECU power supply and earth circuit system check
(Refer to Inspection Procedure 3.)
NG
Replace the immobilizer-ECU.
Check the trouble symptoms.
OK
Check the trouble symptoms.
NG
Repair
Check the harness between the immobilizer-ECU and the
diagnosis connector.
Repair
Check the following connectors:D-133, D-33, D-222, D-28
NG
NG
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Page 1587 of 1839
CHASSIS ELECTRICAL-Ignition Switch and Immobilizer <4D56>54A-17
Inspection procedure 2
The engine does not start.
(The engine cranks but does not fire.)
Probable cause
If the fuel injection does not operate, the cause is probably a problem
with the immobilizer-ECU, or it could also be a problem with the
diesel fuel system. If an attempt has been made to start the engine
with a key that has not been properly registered, the above symptom
is a sign of normal operation.D
Malfunction of diesel fuel system
D
Malfunction of immobilizer-ECU
NGBattery check (P.54A-4)
YES
NOTo Chart Classified by Diagnosis Codes (Refer to P.54A-14.)Is a normal diagnosis code output from the immobilizer-ECU?
OK
Voltage check during cranking
OK:8V or higher
NG
Immobilizer-ECU power supply and earth circuit system check
(Refer to Inspection Procedure 4.)
Check the trouble symptoms.
NG
To inspection procedures if the enginedoes not fire
(Refer to GROUP 13B, 13C - Troubleshooting.)
OK
Check the trouble symptoms.
NG
OK
NG
Replace the immobilizer-ECU.
Check the trouble symptoms.
OK
Check the trouble symptoms.
NG
Repair
Check the harness between the immobilizer-ECU and the fuel
cut valve controller.
Repair
Check the following connectors:D-133, D-13, B-03
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Page 1591 of 1839
CHASSIS ELECTRICAL-Ignition Switch and Immobilizer <4D56>54A-21
ENCRYPTED CODE REGISTRATION METHOD
AND RESETTING THE CODE TO THE
FACTORY SETTING
Register the encrypted code in the immobilizer-ECU and then
reset the code to the factory setting after parts have been
replaced.
Replacement partEncrypted
code
Ignition keyNecessary
Ignition key ring antenna and immobilizer-ECUNecessary
Engine-ECU*Necessary
NOTE
* : If the engine-ECU is replaced, the ignition key ring antenna
and immobilizer-ECU and ignition key should be replaced
together with it.
Each engine-ECU has an individual information for
immobilizer-ECU, and the individual information is registered
in the immobilizer-ECU.
ENCRYPTED CODE REGISTRATION METHOD
If using an ignition key that has just been newly purchased,
or if the immobilizer-ECU has been replaced, you will need
to register the encrypted codes for each ignition key being
used into the immobilizer-ECU. (A maximum of eight different
encrypted codes can be registered.)
Moreover, when the immobilizer-ECU has been replaced, you
will need to use the MUT-II
to register the password that
the user specifies into the immobilizer-ECU. (Refer to the
MUT-II
instruction manual for instructions on using the MUT-II
.)
Caution
Because registering of the encrypted codes is carried
out after all previously-registered codes have been
erased, you should have ready all of the ignition keys
that have already been registered.
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Page 1631 of 1839
CHASSIS ELECTRICAL -Clock or Center Display54A-61
INSPECTION CHART CLASSIFIED BY TROUBLE SYMPTOMS
Related unitTrouble SymptomInspection pro-
cedure No.Reference
page
Malfunction of center
display, related sen-No display appears after the ignition key is turned to the
ACC position.154A-62
sors, and wiring har-
nesses
Outside air temperature does not appear or abnormal
outside air temperature appears.254A-62
Abnormal vehicle speed is displayed on the service
mode.354A-63
Abnormal driving data are displayed:
D
Abnormal average fuel consumption (momentary
fuel consumption) and average vehicle speed
D
Abnormal cruising distance454A-64
Clock runs fast or slow.554A-64
The display screen is dim.654A-65
Air conditioning display does not apper.754A-66
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Page 1632 of 1839
CHASSIS ELECTRICAL -Clock or Center Display54A-62
INSPECTION PROCEDURE 1
No display appears after the ignition key is turn to the ACC position.
OK
Measure voltages between D-03 display connector terminal (25),
(26) voltage and earth.
DIgnition switch: ACC
OK:System voltageNGRepair the fuse and wiring harness.
OK
Measure resistance between D-03 display connector terminal (28)
and earth.
OK:approx. 0
WNGRepair the wiring harness.
OK
Repair the center display unit.
Check the following connector: D-03NGRepair
INSPECTION PROCEDURE 2
Outside air temperature does not appear or abnormal outside air temperature appears.
Check the following connector: D-03NGRepair.
NO
Go to inspection procedure 3.
Check the wiring harness between the
Center Display and the outside air tem-
perature sensor.OKReplace the center display unit.OKEnd
NG
Replace the outside air temperature
sensor.NG
Check the wiring harness between the
center display unit and the outside air
temperature sensor, and replace if nec-
essary.
OK
Is a correct outside air temperature dis-
played in the servicemode?YESIs a correct vehicle speed displayed in
the servicemode?YESEnd (no abnormality).
NO
Select “Check of units connected into
the center display” on the service mode.
Does the symbol “AU” appear?NOGo to inspection procedure 7.
YES
Replace the center display unit.
YES
MUT-
IISelf-Diag code
Is A/C diagnosis code No.13 or 14 set?YESCheck the outside air temperature sen-
sor. (Refer to GROUP 55B.)
NO
Is a correct vehicle speed displayed in
the servicemode?NOGo to inspection procedure 3.
NOTE: It is necessary to drive for a while and get accurate temperature in display if you pass a area
in which temperature is much different. It might show high temperature on display in case it is high
around sensor due to high temperature of engine after battery is exchanged, or a display unit is reinstalled.
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Page 1688 of 1839
SWS -General InformationSWS -General Information54B-2
GENERAL INFORMATION
COMMUNICATION LINE
Data lines for multiplex communication are connected between the front-ECU, ETACS-ECU, column switch
assembly, sunroof motor assembly, center display, power window main switch, and power window motors
as illustrated below.
ETACS-ECUMUT-II
Column switch
assembly
Front-ECU
Power window
main switch
Power window motor
(front-right)
Center display*1
Sunroof motor
assembly*2Power window motor
(front-left)
Power window motor
(rear-right)
Power window motor
(rear-left)
NOTE
: Uni-directional communication line
: Bi-directional communication line
*
1: Vehicles with center display
*2: Vehicles with sunroof
OPERATION
BUZZER
Light Reminder Warning Buzzer Function
When the driver’s door is opened with lighting switch
in the ON (tail lamp switch or headlamp switch)
position and ignition switch in the LOCK (OFF) or
ACC position, the buzzer will sound continuously to
remind the driver that the lamps (tail lamps or
headlamps) are ON.
This function does not work if the lighting switched
off through the headlamp automatic shutdownfunction. In addition, the ignition key reminder
warning buzzer function has a priority over this
function.
Center Display Operation Annunciation
Function
On vehicles with center display, the buzzer (peeps)
sounds when the operation switch of the audio
and navigation system is pressed.
CENTRAL DOOR LOCKING SYSTEM
Central Door Locking System Operation
When the lock switch is turned ON after the unlock
switch on the driver’s door lock actuator switch
is OFF, the ETACS-ECU gives a lock output for
0.5 second. When the unlock switch is turned ON
after the lock switch on the driver’s door lock
actuator switch is OFF, the ETACS-ECU gives an
unlock output for 0.5 second.
When the front passenger’s door key or back door
key is operated, the ETACS-ECU gives a lock or
unlock output for 0.5 second.Forgotten Key Prevention Function
If, with the key reminder switch OFF and the driver’s
door switch ON, the driver’s door lock switch is
turned ON after the door unlock switch in the front
door lock actuator is turned OFF, the ETACS-ECU
waits 0.3 second then give an unlock relay output
for 0.5 second, there by preventing the doors from
being locked. This operation prevents the ignition
key from being locked inside the vehicle. This
function takes precedence over the central door
locking control function.
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Page 1689 of 1839
SWS -General Information54B-3
POWER WINDOWS
Power Windows Operation
A signal line dedicated for transmission of multiplex
communication data is connected between the
power window main switches and the power window
motor-ECU.
Communication is uni-directional. The power
window main switches have a transmitting circuit
only, whereas the power window sub switches have
a receiving circuit only.
Power Window Timer Function
With the ignition switch in the ON position, the power
window relay and power window switch receipt
permission signal (a SWS signal transmitted from
the ETACS-ECU) are turned ON [the power windowswitch receipt permission signal remains ON for 30
seconds after the ignition switch is turned LOCK
(OFF)], enabling opening and closing of the
windows. The power window relay goes ON for
additional 30 seconds. If the driver’s door is
subsequently closed during this period, the receipt
permission signal goes OFF. The power window
relay goes OFF 10 seconds after the receipt
permission signal goes OFF.
If the driver’s door is opened during timer operation,
the receipt permission signal goes ON for additional
30 seconds. If the driver’s door is subsequently
closed during this period, the receipt permission
signal goes OFF ten seconds after the receipt
permission signal goes OFF.
KEYLESS ENTRY SYSTEM
Keyless Entry System Operation
If the transmitter LOCK or UNLOCK switch is
pressed while the ignition key is removed and all
of the doors are closed, the doors can be locked
or unlocked.
Keyless Entry Answerback Function
The keyless entry hazard answerable function
facilitates confirmation of door locking and unlock-
ing operations even in daylight. When a LOCKsignal from the keyless entry transmitter is applied
to the ETACS-ECU, all of the turn-signal lamps flash
twice. When an UNLOCK signal from the keyless
entry transmitter is applied to the ETACS-ECU, all of
the turn-signal lamps flash four times. Note that an
unlock switch has change from OFF to ON.
NOTE
The hazard answer back is enabled or disabled
by the configuration function.
SUNROOF
Sunroof Operation
All of the slide open/close, tilt up/down, and stop
operations can be performed by a single switch.
When the roof lid glass is tilted up, the sunshade
opens approximately 98 mm in combined operation
with the roof lid glass for better ventilation.
A jam preventing mechanism has been adopted.
When a slide-close or tilt-down operation is blocked
by an external force, the roof lid glass moves back
and stops.Sunroof Timer Function
When the ignition switch is turned from ON position
to LOCK (OFF) or ACC position, the sunroof will
be ready to work for 30 seconds.
If the driver’s door is opened during the timer
operation, the timer operates for another
30
seconds starting from that point. However, the
timer operation discontinues if the door is closed
during that period.
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Page 1691 of 1839
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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Page 1692 of 1839
SWS -General Information54B-6
REAR FOG LAMP
If the fog lamp switch is turned ON when the
headlamp or the front fog lamp is turned On, the
rear fog lamp is switched ON and OFF alternatively.If the headlamp and the front fog lamp are turned
OFF during lighting of the rear fog lamp, the rear
fog lamp is turned OFF at the same time.
ROOM LAMP
With the room lamp switch in the DOOR position,
the ETACS-ECU controls the room lamp operation
as follows:
DWhen a door is opened from outside or inside
[with the ignition switch turned to LOCK (OFF)
position]:
When a door is opened, the ETACS-ECU
causes the room lamp to be illuminated at the
100% intensity. When the door is closed, it
dims out the room lamp to 65% intensity and
approx. 30 seconds later, turns out the lamp
completely. During this period (timer controlled
period), the room lamp goes out if the ignition
switch is turned to ON position or the doors
are locked.
DWhen a door is opened or closed with the
ignition switch in the ON position:
The room lamp illuminates at 100% intensity
when a door is opened and turned out when
it is closed.
DWhen no door is opened and the ignition key
is removed:When the ignition key is removed with all the
doors closed, the room lamp is illuminated at
an intensity of 100% and turned out approx.
30 seconds later. During that time
(timer-controlled period), the room lamp goes
out if the ignition key is inserted and turned
to ON position or the door locking system is
activated.
DRoom lamp’s answerback operation in
response to door lock control by keyless entry
system:
To allow the driver to ascertain the result of
the door locking/unlocking control action by
the use of the keyless entry system, the
ETACS-ECU causes the room lamp to blink
twice when the doors are locked through the
system and to illuminate for approx. 15 seconds
when the doors are locked.
The room lamp’s answerback operation in
response to a keyless entry system control
action is accompanied by operation of the
hazard warning lamps.
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Page 1694 of 1839
SWS -Troubleshooting54B-8
TROUBLESHOOTING
STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING
Refer to GROUP 00 – How to Use Troubleshooting/Inspection Service Points.
DIAGNOSTIC FUNCTION
DIAGNOSIS CODES CHECK
Use the MUT-II
to check a diagnosis code.
(Refer to GROUP 00 – How to Use Troubleshooting/Inspection Service Points.)
NOTE
Connect the MUT-II
to the 16-pin diagnosis connector (black).
INPUT SIGNAL CHECK
1. Use the MUT-II
to check a input signal.
(Refer to GROUP 00 – How to Use Troubleshooting/Inspection Service Points.)
2. In this condition, the following input switches can be checked.
3. If an abnormality is found during the input signal check, carry out troubleshooting while referring
to the Trouble Symptom Check page.
Input Signal Check Function
Input signalBuzzer operation condition
Ignition switch (ACC)Turned from LOCK(OFF) to ACC
Ignition switch (IG1)Turned from ACC to ON
Key reminder switch
(from inserted position)
Hazard warning lamp switchTurned from OFF to ON
Front fog lamp switch
Rear fog lamp switch
Back-up lamp switch
Inhibitor switch (reverse)
washer>Selector lever moved to R position
Rear wiper motor auto-stop signal
is sent before the rear wiper begins to operate)
Driver’s door switchDriver’s door opened from closed condition
Door switchesAll doors closed to any door opened
Front passenger’s or back door lock key cylinder switch
Driver’s door lock actuator switch
position to unlock position or vice versa
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