Mitsubishi Montero Sport (2004+). Manual — part 520
IGNITION SWITCH
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CHASSIS ELECTRICAL
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5. Select "System select."
6. Choose "IMMOBILIZER" from the "POWER TRAIN" tab.
7. Choose "Special Function" from "IMMOBILIZER" screen.
8. Choose "Key registration" from "Special Function" screen.
9. Enter the vehicle’s password (secret code) on the "Key
registration" screen, and then click the check mark icon.
Follow the prompts on the screen to insert key(s) into the
ignition switch to begin key registration.
System select
Special function
CAN bus diagnosis
Function Select Menu
Menu
AC209666
Maintenance
AC
MFI
ELC-A/T
IMMOBILIZER
SS4II
CRUISE CNTRL
CHASSIS
BODY
System Select Menu
POWER TRAIN
AC209667
AC
Check Chart For
Problem Sy
Data List
Special
Function
Self-diagnosis
Voltmeter
Simulated Vehicle
Speed Out
Drive Recorder
Resistor
POWERTRAIN
IMMOBILIZER
IMMOBILIZER
AC207298
AD
Key registration
Transponder ID
addition
POWERTRAIN
Special Function
IMMOBILIZER
Special Function
AC207299
AE
POWERTRAIN
IMMOBILIZER
Special Function
7
8
9
4
5
6
1
2
3
0
Back
Back
Space
Space
Clear
Clear
Key registration
AC207300
AC
IGNITION SWITCH
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CHASSIS ELECTRICAL
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10.If the key ID was registered successfully, "Progress"
indication will turn active (gray). Then the registration
process completes. If the key ID failed to be registered,
"In-Complete" indication will turn active (gray).
11.The number of keys currently registered will be displayed.
To register an additional key, replace the ignition key with
the next key to be registered within five seconds. Key ID
registration screen will be displayed, then register another
key.
NOTE: A maximum of eight different keys can be registered.
12.This completes the registration operation. Turn the ignition
switch "LOCK" (OFF) and leave it off for approximately ten
seconds.
13.Check that the engine can be started with each of the
ignition keys.
14.Check that the immobilizer system DTC and MFI system
DTC did not set.
15.If not DTC is shown, terminate the scan tool MB991958.
16.Turn the ignition switch to "LOCK" (OFF) position.
17.Disconnect scan tool MB991958.
.
Registration of additional key(s) without using the scan
tool
If the scan tool is not available, new key(s) can be registered by
operating two keys which have been registered to the vehicle
(A maximum of eight keys can be registered to one vehicle).
Follow the procedure below to register new key(s) to the vehi-
cle.
NOTE: The registered key is the key that allows you to start the
engine.
1. Turn on the ignition switch by using the first registered key
(key A), and wait for five seconds.
2. Within 30 seconds, remove the key.
3. Within seven seconds after the ignition switch has been
turned to the "LOCK" (OFF), insert the second registered
key (key B) and turn on the ignition switch again. Now the
theft-alarm indicator light should blink twice for one second.
If it does not blink, you has failed to register. Repeat from
step 1.
4. Turn on the key B. Within 30 seconds, remove the key.
5. Within seven seconds after the ignition switch has been
turned to the "LOCK" (OFF) position, turn on the ignition
switch by using a new key.
6. The immobilizer-ECU identifies the new key to accept or
reject it, and operates the theft-alarm indicator (See the
table below).
POWERTRAIN
IMMOBILIZER
Special Function
IMMOBILIZER-ECU registration
Progress
In-Complete
Key registration
AC207302
AC
AC102935 AB
IGNITION SWITCH
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CHASSIS ELECTRICAL
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7. A maximum of eight ignition keys can be registered to one
vehicle (If you attempt to register the ninth key, the
immobilizer-ECU rejects the key). Follow the procedure
below to register another new key.
(1) Within 30 seconds after the new key has been registered
on step 6, remove the key.
(2) Within seven seconds after the ignition switch has been
turned to the "LOCK" (OFF), insert another new key and
turn on the ignition switch.
(3) To register more other ignition key(s), repeat steps 1 and
2.
8. If any of the following conditions are satisfied, the additional
key registration mode will terminate:
• The ignition switch has been on for more than 30 seconds.
• After the ignition key has been turned to the "LOCK" (OFF),
the engine control relay is turned off.
• The scan tool has started communicating with vehicle sys-
tems.
9. After the registration mode has terminated, the additionally
registered key(s) should allow you to start the engine.
TRANSPONDER LOCK CHECK
M1543024100164
Required Special Tools:
• MB991958: Scan Tool (MUT-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: MUT-III USB Cable
• MB991911: MUT-III Main Harness B (Vehicles without
CAN communication system)
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to "LOCK" (OFF) position before connect-
ing or disconnecting scan tool MB991958.
Follow the procedure below to judge if the ignition key can be
overwritten (i.e. the ignition key is correct) or not.
The new key is:
Registration is:
Additional
registration
mode:
Theft-alarm indicator:
Not registered yet
Accepted
Continues
Comes on for 3 seconds after the ECU
judges that the key has not been
registered yet.
Already registered
Rejected
Continues
Comes on for 3 seconds after the ECU
judges that the key has already been
registered
Read error
Rejected
Continues
Blinks three times after the ECU has
failed to identify the key.
Eight ignition keys have
been registered
Rejected
Continues
Does not come on and blink
IGNITION SWITCH
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CHASSIS ELECTRICAL
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1. Connect the scan tool MB991958 to the data link connector.
2. Turn the ignition switch to "ON" position.
3. Select "Interactive Diagnosis" from the start-up screen.
4. Select "System select."
5. Choose "IMMOBILIZER" from the "POWER TRAIN" tab.
AK303629AB
MB991911
MB991827
MB991824
16-PIN
System select
Special function
CAN bus diagnosis
Function Select Menu
Menu
AC209666
Maintenance
AC
MFI
ELC-A/T
IMMOBILIZER
SS4II
CRUISE CNTRL
CHASSIS
BODY
System Select Menu
POWER TRAIN
AC209667
AC
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