2001 TOYOTA SEQUOIA Service Repair Manual

Page 1913 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual ± DIAGNOSTICSBODY CONTROL SYSTEM
DI±1711
1905 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
1 Check FOG LIGHT relay (See page BE±34).
NG Replace FOG LIGHT relay.
OK
2 Check fog ligh

Page 1914 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±1712
± DIAGNOSTICSBODY CONTROL SYSTEM
1906 Author: Date:
2005 SEQUOIA   (RM1146U)
Daytime running light relay circuit
CIRCUIT DESCRIPTION
Power is supplied to the DIMMER and DRL No. 4 relays wh

Page 1915 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual I28771
32
2
1
2Body ECU
2
2 L1
G±W2
2 2
Engine Room R/B No. 2R±W
21
21
21 R±L
A
To Body ECU
(HEAD Relay Circuit)B7
R
2F
B 5
EDMAINHEAD RelayDRLIA117
Battery F10
FL Block J1
J/CW±L
W±L
R±L
R±W
R

Page 1916 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±1714
± DIAGNOSTICSBODY CONTROL SYSTEM
1908 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
1 Check DRL No. 4 relay and DIMMER relay (See page BE±27).
NG Replace DRL No. 4 relay and

Page 1917 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual I24352
Body ECU
B5KSW
IGU1
Key Unlock Warning Switch
O1
2
Y±G13
A
AJ43
J/C
O
± DIAGNOSTICSBODY CONTROL SYSTEM
DI±1715
1909 Author: Date:
2005 SEQUOIA   (RM1146U)
Key unlock warning switch circuit

Page 1918 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual DI±1716
± DIAGNOSTICSBODY CONTROL SYSTEM
1910 Author: Date:
2005 SEQUOIA   (RM1146U)
INSPECTION PROCEDURE
HINT:
When using the hand±held tester, start the inspection from step 1 and when not usin

Page 1919 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual ± DIAGNOSTICSBODY CONTROL SYSTEM
DI±1717
1911 Author: Date:
2005 SEQUOIA   (RM1146U)
3 Check wire harness and connector between key unlock warning switch and
body ECU, key unlock warning switch an

Page 1920 of 4323

TOYOTA SEQUOIA 2001  Service Repair Manual I28517
R±L
B2
Back Door Power Window Control Switch
UP
DOWNB6
BDN 14
15 6
B6BUP
3
5W
P±LB6 21
PWSBody ECU DI±1718
± DIAGNOSTICSBODY CONTROL SYSTEM
1912 Author: Date:
2005 SEQUOIA   (RM1146U)
Bac