Page 413 of 788

IGNITION SWITCH
CHASSIS ELECTRICAL54A-25
8. 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).
9. 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.
10.This completes the registration operation. Turn
the ignition switch "LOCK" (OFF) and leave it off
for approximately ten seconds.
11.Check that the engine can be started with each of
the ignition keys.
12.Check that the immobilizer system diagnosis
code and MPI system diagnosis code did not set.
13.If not diagnosis code is shown, terminate the
MUT-III.
14.Turn the ignition switch to "LOCK" (OFF) position.
15.Disconnect MUT-III.
Registration of additional keys with the
MUT-III
Additional key(s) can be registered with the MUT-III
while keeping all existing key data.
CAUTION
To prevent damage to MUT-III, always turn the
ignition switch to "LOCK" (OFF) position before
connecting or disconnecting MUT-III.
NOTE: To register additional keys with the MUT-III,
no registered keys must be lost.1. Connect MUT-III to the 16-pin diagnosis
connector.
2. Turn the ignition switch to "ON" position.
NOTE: Before registration, check that no diagnosis
code is set. If a diagnosis code is set, resolve the
problem beforehand.
3. Carry out steps 3 to 6 of the sub-section
"Registration with MUT-III."
4. Choose "Transponder ID addition" from "Special
Function" screen.
AC304950
MB991911
16-PIN
MB991827 MB991824
AB
Key ID registrationAdditional Key
Registration
POWERTRAINSpecial FunctionIMMOBILIZERSpecial Function
AC305177
POWERTRAIN IMMOBILIZER
PasswordSpecial Function
789
456
123
0
BackBackSpaceSpaceClearClear
Trasponder ID addition
AC207301
Page 414 of 788

IGNITION SWITCH
CHASSIS ELECTRICAL54A-26
5. Enter the vehicles password (secret code) on the
"Transponder ID addition" screen, and then click
the check mark icon.
6. If an additional registration is made successfully,
the screen will ask if another key is registered or
not. If the third ignition key is registered, remove
the key, which has been registered. Then insert
the third key within five seconds, and then turn it
to the ON position.
7. Register the additional ignition key according to
step 6 above. The number of the registered
ignition keys are shown on "The number of
registered key" screen.
NOTE: A maximum of eight different keys can be
registered.
8. This completes the registration operation. Turn
the ignition switch "LOCK" (OFF) and leave it off
for approximately ten seconds.
9. Check that the engine can be started with each of
the ignition keys.
10.Check that the immobilizer system diagnosis
code and MPI system diagnosis code did not set.
11.If not diagnosis code is shown, terminate the
MUT-III.
12.Turn the ignition switch to "LOCK" (OFF) position.
13.Disconnect MUT-III.Registration of additional key(s) without
using the MUT-III
If the MUT-III 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
vehicle.
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. Remove the first registered key (key A).
3. Insert the second registered ignition key (key B),
and turn it to the ON position.
4. The immobilizer-ECU identifies the new key to
accept or reject it, and operates the immobilizer
indicator (See the table below).
5. If a new ignition key is registered further, repeat
steps 1 to 7 above.
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). 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 MUT-III has started communicating with
vehicle systems.
6. After the registration mode has terminated, the
additionally registered key(s) should allow you to
start the engine.
AC207301
AC209775POWERTRAIN IMMOBILIZER
Key ID registerey ID registerThe number of registered keyThe number of registered key3
Progre
Progre
Special FunctionTrasponder ID addition
About Additional TAbout Additional TransponderransponderID SETID SETIf register another key ID, press theIf register another key ID, press theOK button after inserting a new keyOK button after inserting a new keywithin 5 sec and turning on IG-SWwithin 5 sec and turning on IG-SW.
Page 415 of 788
Page 416 of 788

IGNITION SWITCH
CHASSIS ELECTRICAL54A-28
REMOVAL SERVICE POINT
<> STEERING LOCK CYLINDER
REMOVAL
1. Insert the key in the steering lock cylinder and turn
it to the "ACC" position.
2. Using a small Phillips head screwdriver, pull the
steering lock cylinder toward you.
INSPECTIONM1544009700203
IGNITION SWITCH CONTINUITY CHECK
Disconnect ignition switch connector C-201 without
removing the ignition switch. Then check the
continuity.
KEY REMINDER SWITCH CONTINUITY
CHECK
Disconnect key reminder switch connector C-202
without removing the ignition switch and key
reminder switch. Then check the continuity.
AC304831AB
Locking pin
AC304833AB
Switch
position Tester
connectionSpecified
condition
"LOCK" (OFF) 1 − 2, 1 − 3,
1 − 4, 1− 5,
1 − 6, 2 − 3,
2 − 4, 2− 5,
2 − 6, 3 − 4,
3 − 5, 3 − 6,
4 − 5, 4 − 6,
5 − 6Open circuit
"ACC" 1 − 6 Less than 2
ohms
"ON" 1 − 2, 1 − 4,
1 − 6, 2 − 4,
2 − 6, 4 − 6Less than 2
ohms
"START" 1 − 2, 1 − 5,
2 − 5Less than 2
ohms
Status of
ignition keyTester
connectionSpecified
condition
Removed 4 − 6 Less than 2
ohms
Inserted 4 − 6 Open circuit
AC304834AB
Page 420 of 788
COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL54A-32
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: Speedometer does not work (the other meters work).
Speedometer Circuit
IGNITION
SWITCH (IG1)
VEHICLE
SPEED
SENSORDIAGNOSIS
CONNECTORCOMBINATION
METER
ENGINE-ECU
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet CONTROL CIRCUIT
FRONT SIDE
NOTE
LH drive vehicles
RH drive vehicles
,
Page 421 of 788

COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL54A-33
TECHNICAL DESCRIPTION (COMMENT)
The engine-ECU and its associated components, the
combination meter assembly, the wiring harness, or
the connector(s) may be defective.
TROUBLESHOOTING HINTS
•Malfunction of the vehicle speed sensor
•Malfunction of the engine-ECU
•Malfunction of the combination meter assembly
•The wiring harness or connectors may have
loose, corroded, or damaged terminals, or
terminals pushed back in the connector.
DIAGNOSIS PROCEDURE
STEP 1. MUT-II/III actuator test.
(1) Connect the MUT-II/III to the diagnosis connector.(2) Use the MUT-II/III to enter simulated vehicle
speed.
Q: Does the speedometer show that simulated vehicle
speed?
YES :
Go to Step 6.
NO : Go to Step 2.
STEP 2. Check the vehicle speed sensor.
(MUT-II/III diagnosis code)
(1) Connect MUT-II/III to the diagnosis connector.
(2) Turn the ignition switch to the "ON" position.
(3) Read the MPI system diagnosis code.
Q: Is MPI system diagnosis code P0500 set?
YES :
Refer to P.13A-186 <4G1> or P.13B-166
<4G6>.
NO : Go to Step 3.
AC304777
Steering shaft
AB
MB991502
AC304950
MB991911
16-PIN
MB991827 MB991824
AB
AC304777
Steering shaft
AB
MB991502
AC304950
MB991911
16-PIN
MB991827 MB991824
AB
Page 425 of 788
Page 426 of 788

COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL54A-38
TECHNICAL DESCRIPTION (COMMENT)
The engine-ECU and its associated components, the
combination meter assembly, the wiring harness, or
the connector(s) may be defective.
TROUBLESHOOTING HINTS
•Malfunction of the vehicle speed sensor
•Malfunction of the engine-ECU
•Malfunction of the combination meter assembly
•The wiring harness or connectors may have
loose, corroded, or damaged terminals, or
terminals pushed back in the connector.
DIAGNOSIS PROCEDURE
STEP 1. MUT-II/III actuator test
(1) Connect the MUT-II/III to the diagnosis connector.(2) Use the MUT-II/III to enter simulated vehicle
speed.
Q: Does the speedometer show that simulated vehicle
speed?
YES :
Go to Step 6.
NO : Go to Step 2.
STEP 2. Check the output shaft speed sensor.
(MUT-II/III diagnosis code)
(1) Connect MUT-II/III to the diagnosis connector.
(2) Turn the ignition switch to the "ON" position.
(3) Read the automatic transmission system
diagnosis code.
Q: Is automatic transmission system diagnosis code
23 set?
YES :
Refer to P.23A-38.
NO : Go to Step 3.
AC304777
Steering shaft
AB
MB991502
AC304950
MB991911
16-PIN
MB991827 MB991824
AB
AC304777
Steering shaft
AB
MB991502
AC304950
MB991911
16-PIN
MB991827 MB991824
AB