2001 TOYOTA SEQUOIA Service Repair Manual

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TOYOTA SEQUOIA 2001  Service Repair Manual ± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
DI±1583
1777 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
HINT:
When using the hand±held tester, start the inspection from step 1 and when no

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TOYOTA SEQUOIA 2001  Service Repair Manual DI±1584
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
1778 Author: Date:
2005 SEQUOIA   (RM1146U)
4 Check harness and connector between transponder key ECU and body ECU (See
page IN±35).
NG Repair or re

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TOYOTA SEQUOIA 2001  Service Repair Manual I24832
DCY2GR±L8
T16CTY Transponder Key ECU
13
B7 Body ECU
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
DI±1585
1779 Author: Date:
2005 SEQUOIA   (RM1146U)
Code 12 is not output
CIRCUIT DESCRIPTION
The

Page 1788 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±1586
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
1780 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
1 Check operation of door courtesy light.
CHECK:
Check that the door courtesy light

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TOYOTA SEQUOIA 2001  Service Repair Manual I24834
F10
FL Block1J 1CInstrument Panel J/B
IG2B±R I18 
Ignition SW
Battery 56
B B W±R AM22
17
IGN1
1C1E
7
3
4 5Transponder Key ECU
IG 2
2CT16
2DB±O
1B±O
W±R
1 AM2 Engine Room J/BSub J/B No. 4
2

Page 1790 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±1588
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
1782 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
1 Check ignition switch (See page BE±24).
NG Replace ignition switch.
OK
2 Check ha

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TOYOTA SEQUOIA 2001  Service Repair Manual I03114
T6
Transponder Key
Amplifier
13
T16Transponder Key ECU
CODE RXCKTXCT
6
5
45
T16
4
T16 Y±G
LG
R±Y RXCK
CODE TXCT
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
DI±1589
1783 Author: Date:
2005 SEQU

Page 1792 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±1590
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
1784 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
1 Check whether the engine can be started with the master key and sub±key for
anoth