Toyota Sequoia (2005). Manual — part 509
–
DIAGNOSTICS
PASSENGER DOOR CONTROL SYSTEM
DI–1831
2025
3
Check wire harness and connector between door unlock detection switch and
passenger door ECU (See page
).
NG
Repair or replace wire harness or connector.
OK
Proceed to next circuit inspection shown in
problem symptoms table
(See page
I28438
D21
Door Key Lock and
Unlock SW Front RH
LSWE
PKUL
PKL
13
2
3
W–B
LG–R
LG–B
4
1
2
Front Passenger
Door ECU
F18 F18
*1: w/ Driving Position Memory
*2: w/o Driving Position Memory
(*1) (*2)
F18 F18
F18 F18
9
10
22
(*1) (*2)
(*1) (*2)
DI–1832
–
DIAGNOSTICS
PASSENGER DOOR CONTROL SYSTEM
2026
Door key lock and unlock switch circuit
CIRCUIT DESCRIPTION
The door key lock and unlock switch is built in the door lock motor. When the key is turned to the lock side,
terminal 2 of the switch is grounded and when the key is turned to the unlock side, terminal 1 of the switch
is grounded.
The door key lock and unlock switch can be checked using the DTC check (refer to
WIRING DIAGRAM
DI1Q9–09
–
DIAGNOSTICS
PASSENGER DOOR CONTROL SYSTEM
DI–1833
2027
INSPECTION PROCEDURE
1
Check the door key lock and unlock switch (See page
NG
Replace the door key lock and unlock switch.
OK
2
Check wire harness and connector between door key lock and unlock switch
and passenger door ECU (See page
NG
Repair or replace wire harness or connector.
OK
Proceed to next circuit inspection shown in
problem symptoms table
(See page
I28439
D11
Door Courtesy
Light Front RH
CTYB
PCYL
6
5
R
R–W
1
2
Front Passenger Door
ECU
*1: w/ Driving Position Memory
*2: w/o Driving Position Memory
(*1) (*2)
5
5
6
F18 F18
F18 F18
(*1) (*2)
DI–1834
–
DIAGNOSTICS
PASSENGER DOOR CONTROL SYSTEM
2028
Door courtesy light circuit
CIRCUIT DESCRIPTION
The door courtesy light comes on when the door is opened and goes off when the door is closed.
WIRING DIAGRAM
DI1QA–09
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