Page 3514 of 4323
I18617
From Back Side:5 ± 1
BE±102
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
3506 Author: Date:
2005 SEQUOIA (RM1146U)
5. Connector connected:
INSPECT WIRELESS DOOR LOCK CONTROL RE-
CEIVER CIRCUIT
Connect the wire harness side connector to the receiver and in-
spect the wire harness side connector from the back side, as
shown.
Tester connectionConditionSpecified condition
3 ± GroundNormal modeApprox. 10 ± 14 V
2 ± Ground
Ignition switch position OFF,
Key removed,
Transmitter ON
Approx. 6 ± 7 V
If circuit is as specified, replace the receiver.
If the circuit is not as specified, inspect the circuits connected
to other parts.
Page 3517 of 4323
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE±105
3509 Author: Date:
2005 SEQUOIA (RM1146U)
Start registration of recognition code
The vehicle should be in the following conditions.
Any door is OPEN. (Other doors are CLOSED)
Insert the key into the ignition key cylinder, then pull it out.
Press the door lock control switch (for manual operation) 5 times to
LOCK/UNLOCK at approx. 1 sec. interval.
1st time 2nd time 3rd time 4th time 5th time
LOCK
OFF
UNLOCK
Approx.
1 sec.Approx.
1 sec.
Close the DRIVER'S door, then open the DRIVER'S door.
Press the door lock control switch again (for manual operation) 5 times to
LOCK/UNLOCK at approx. 1 sec. interval.
1st time 2nd time 3rd time 4th time 5th time
LOCK
OFF
UNLOCK
Approx.
1 sec.Approx.
1 sec.
Insert the key into the ignition key cylinder.
Within
40 secs.
Page 3518 of 4323

BE±106
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
3510 Author: Date:
2005 SEQUOIA (RM1146U)
Within
3 secs.
Turn the ignition switch from ON to LOCK at approx. 1 sec. interval 1 to 5 times to select the mode.
Pull out the key plate from the ignition key cylinder.
When add mode or rewrite mode
is selected.When confirmation
mode is selected.
ON
ONON
OFF
OFFOFF
Approx.
1 sec.Approx.
1 sec. Approx. 1 sec.Approx.
1 sec.Approx.
1 sec.
Add mode
Rewrite modeConfirmation mode
ON ± OFF change occurs 1 time
ON ± OFF change occurs 2 timesON ± OFF change occurs 3 times
MPX body ECU automatically performs
the LOCK±UNLOCK operation once
or twice at 1 sec. interval to inform the
operator that either the add mode or
rewrite mode has been selected.
LOCK±UNLOCK occurs once
LOCK±UNLOCK occurs twice
Indicates that add mode has been selected.
Indicates that rewrite mode has been
selected.
1 sec.
LOCK
1 sec.1 sec.
LOCK
UNLOCK
UNLOCK
LOCK
2 secs.2 secs.
UNLOCK MPX body ECU automatically performs the
LOCK±UNLOCK operation 1 to 4 times at
2 sec. interval to inform the operator of
the number of the registered codes.
HINT:
When the number of the registered code
is 0, the operation is automatically
performed 5 times.
Example:
When the operation is performed twice, it
directs that 2 types of recognition code
have been registered.
1st time 2nd time
Registration of recognition code (Confirmation
mode and prohibition mode) is completed.
ON
OFF
Approx.
1 sec.Approx.
1 sec.
Prohibition mode
ON ± OFF change occurs 5 times
When prohibition
mode is selected.
Within
40secs.
Page 3519 of 4323

± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE±107
3511 Author: Date:
2005 SEQUOIA (RM1146U)
MPX body performs LOCK±UNLOCK operation 5 times at a 1 sec.
interval to inform the operator that prohibition mode has been selected.
Press again any switches on the transmitter for more than 1 sec.
MPX body ECU automatically performs LOCK±UNLOCK operation once or
twice at a 1 sec. interval to inform the operator that the receiver has received the
signal from the transmitter.
LOCK±UNLOCK occurs once
LOCK±UNLOCK occurs twice Registration of recognition code is completed.
Registration of recognition code has not been completed.
Recognition code received first time and second time did not match.
Proceed to continue registration
If even one of the following conditions is satisfied, registration of recognition
codes is completed.
40 secs. elapse since the MPX body ECU response.
The driver's door is closed.
The key plate is inserted in the ignition key cylinder.
4 types of recognition codes are registration at one time.
Registration of recognition codes (add mode or rewrite mode) is completed.
Within
3 secs. Within
40 secs.
UNLOCK
Approx.
1 sec.Approx.
1 sec.
When prohibition
mode is selected.
Press the lock and unlock switches on the transmitter simultaneously within 1.5 sec.
If LOCK±UNLOCK operation can not be performed at all, the mode returns to the
normal mode, then start with ºStart registration of recognition codeº.
Proceed to finish registration
Within 40 secs.
Within
3 secs.LOCK
Page 3549 of 4323

START
Insert the key in the key cylinder.
Under registration
Registration completion
Remove the key.
Will you register the
next key?
NoSecurity indicator blinks until the first
key is inserted. The indicator comes
on after the key registration.
Security Indicator
OFF
END Ye s
Security Indicator ON
(After the last key (sub±key) has been
registered, the indicator remains OFF
until the key is removed. After the key
is removed, the indicator blinks.)
± BODY ELECTRICALENGINE IMMOBILISER SYSTEM
BE±137
3541 Author: Date:
2005 SEQUOIA (RM1146U)
ENGINE IMMOBILISER SYSTEM
REGISTRATION PROCEDURE
HINT:
If you lose all the registered master keys, you cannot registrar or delete additionally. Change the transponder
key ECU and then register the new key codes following the registration procedure of the automatic registra-
tion mode below.
1. KEY REGISTRATION IN AUTOMATIC REGISTRATION MODE
(a) Registration of a new transponder key.
HINT:
This procedure must be done when you install a new transponder key ECU.
The new transponder key ECU is in automatic key code registration mode. The key codes already fixed
for this transponder key ECU can be registered.
For this type of vehicle, up to 3 key codes can be registered.
In the automatic registration mode, the last key registered becomes a sub±key.
Page 3550 of 4323

1.8 Sec.
0.2 Sec.
0.25 Sec. 0.5 Sec.0.25 Sec.
1 Sec. Blinks
Code 2±1 Code 2±2
0.25 Sec.
0.25 Sec.0.5 Sec. 1 Sec. BE±138
± BODY ELECTRICALENGINE IMMOBILISER SYSTEM
3542 Author: Date:
2005 SEQUOIA (RM1146U)
HINT:
When a key cannot be inserted in the key cylinder in automatic registration mode, the security indicator
always comes on.
When the immobilizer system operates normally and the key is pull out, the security indicator blinks.
When key code registration could not be performed in automatic registration mode, code 2±1 is output
from the security indicator and when the registered key in inserted, code 2±2 is output.
(b) Automatic registration mode completion
If completing the mode forcibly when more than 1 key codes are registered in automatic registration
mode, perform the following procedures.
After 1 more key codes are registered with the master key, turn the ignition switch LOCK "ON 5 times
within 10 secs. by inserting the registered key or without pulling the key out.
Page 3551 of 4323
START
END
All doors closed. No key in the key cylinder.
Insert the registered master key in the key cylinder.
Ignition switch: LOCK " ON 5 times
Driver's door: Open " Close 6 times
Remove the master key.
Insert the key to be registered in the key cylinder.
Keep ignition switch in ON position for 60 seconds or more.
Remove the master key.
Do you register another key?
Driver's door: Open " Close
within
15 secs.
within
20 secs.
within
10 secs.
within
10 secs.
within
10 secs.*6
*5 *4 *3 *2 *1
No Ye s
10 secs.
or
more
± BODY ELECTRICALENGINE IMMOBILISER SYSTEM
BE±139
3543 Author: Date:
2005 SEQUOIA (RM1146U)
2. REGISTRATION OF ADDITIONAL MASTER KEY AND SUB KEY
Do this operation to register an additional master key and sub key.
Page 3552 of 4323

BE±140
± BODY ELECTRICALENGINE IMMOBILISER SYSTEM
3544 Author: Date:
2005 SEQUOIA (RM1146U)
*1: Insert the master key into the key cylinder.
Turn the ignition switch to the LOCK " ON position 5 times within 15 seconds.
*2: Open and close the driver's door 6 times within 20 seconds after completion of the previous operation.
*3: Remove the master key from the ignition switch and insert another key to be registered in the key cylinder
within 10 seconds after completion of the previous operation.
*4: Turn the ignition switch to the ON position and wait for 60 seconds or more, then key registration will be
completed.
*5: 10 seconds or more elapse after removal of the key or open and close the driver's door, then key registra-
tion will be completed.
*6: When registering multiple keys, insert the key to be registered in the key cylinder.
HINT:
It is possible to register up to 4 master key codes including the registered key code.
It is possible to register up to 2 sub key codes including the registed key code.
When any operation time described above is over, registration mode completes.
When the next procedure is performed while the timer is working, the timer completes counting time,
then the next timer starts.