TOYOTA AVALON 2001 Service Repair Manual

DI-650
- DIAGNOSTICSBODY CONTROL SYSTEM
806 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Check luggage opener motor. (See page BE-82)
NG Replace the luggage opener motor.
OK
2 Check wireharness and connector between luggage opener motor and body
ECU. (See page IN-30)
NG Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table.
(See page DI-622)

I13653
W-BL2
Luggage Compartment
Door Opener Switch
2
1
L2
1 L1Luggage Compartment
Door Opener Main Switch
L-B
77
4H4B
W-B
A
J9
J/C
IJ18
B5Body ECU
TKL
J/B No. 4
- DIAGNOSTICSBODY CONTROL SYSTEM
DI-647
803 Author
: Date
:
2001 AVALON (RM808U)
Luggage opener switch circuit
WIRING DIAGRAM
DI6LT-01

DI-648
- DIAGNOSTICSBODY CONTROL SYSTEM
804 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Check luggage opener switch and main switch (See page BE-82).
NG Replace the luggage opener switch and main
switch.
OK
2 Check wireharness and connector between luggage opener switch and Body
ECU (See page IN-30).
NG Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table
(See page DI-622).

I13643
P3
Parking Brake
Switch
1
Y-G Y-G5
5
3B 3A15
B4Body ECU
PKB J/B No. 3 DI-670
- DIAGNOSTICSBODY CONTROL SYSTEM
826 Author
: Date
:
2001 AVALON (RM808U)
Parking brake switch circuit
WIRING DIAGRAM
DI29Y-05

- DIAGNOSTICSBODY CONTROL SYSTEM
DI-671
827 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Check parking brake switch (See page BE-53).
NG Replace the parking brake switch.
OK
2 Check wireharness and connector between parking brake switch and body ECU.
(See page IN-30)
NG Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table.
(See page DI-622)

I13658
*1 *2
*2 *1*2
W-B
11
*1
*1
W-B
21 B9
Buckle Switch RH
2
*2
A
J10
J/CBN6
GG
*1BD1
IM26
*2
G17
B5
GBody ECU
1 S11Seat Belt
Warning Occupant
Detection Sensor
R-W 8
BD12
W-R4
B5
*2
PBKL
SEAT
*1: w/ Sliding Roof
*2: w/o Power Seat
*1IM2 BD1
W-B
W-B
W-BW-B
*1
W-R W-R DI-660
- DIAGNOSTICSBODY CONTROL SYSTEM
816 Author
: Date
:
2001 AVALON (RM808U)
Passenger buckle switch and seat belt warning occupant detec-
tion sensor
CIRCUIT DESCRIPTION
This circuit detects the conditions of the passenger buckle switch and the seat belt warning occupant detec-
tion sensor, and makes the passenger seat belt warning flash.
WIRING DIAGRAM
DI6LZ-01

- DIAGNOSTICSBODY CONTROL SYSTEM
DI-661
817 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Check passenger buckle switch. (See page BE-53)
NG Replace the passenger buckle switch.
OK
2 Check seat belt warning occupant Detection sensor. (See page BE-53)
NG Replace the seat belt warning occupant Detec-
tion sensor.
OK
3 Check wireharness and connector between seat belt warning occupant Detec-
tion sensor and body ECU, passenger buckle switch and seat belt warning occu-
pant Detection sensor, passenger buckle switch and body ground.
NG Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table.
(See page DI-622)

I13659
P1
Park/Neutral
Position Switch
2PL7
G-W3
II2
G-W18 18
3A 3H
G-W1
B4Body ECU
R-L 20
3D
3C20 7
3C R-L D6
Diode
A/T Indicator Light
3 2
R-Y
*2
*1
R-L R-L
20
II1
11
1C
1B3 GAUGE No. 2
12
34 4IG1 RELAY
1C 1G
W
W-R
4Ignition Switch
IG1
AM1
2
W-LW-L 7
IF1 5 5AM1
21
BW-B
1
2H
2G1
B-L 1
F8 FL Block
1
F10
F61
BALT
FL MAINBattery
IGP
*1: FLOOR SHIFT
*2: COLUMN SHIFTJ/B No. 3
J/B No. 3
Driver Side J/B
J/B No. 5
Engine Room J/B
*2
I15 DI-664
- DIAGNOSTICSBODY CONTROL SYSTEM
820 Author
: Date
:
2001 AVALON (RM808U)
Park/Neutral Position Switch Circuit
CIRCUIT DESCRIPTION
The park/neutral position switch detects the shift lever p position and sends signals to the Body ECU.
WIRING DIAGRAM
DI6M1-01

- DIAGNOSTICSBODY CONTROL SYSTEM
DI-665
821 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Check A/T shift operation.
CHECK:
Check that the A/T shift operates normally.
NG Proceed to AT troubleshooting.
(See page DI-158)
OK
2 Check harness and connector between Body ECU and park/neutral position
switch (See page IN-30).
NG Repair or replace harness or connector.
OK
Check and replace Body ECU (See page
IN-30).

DI6LK-01
- DIAGNOSTICSBODY CONTROL SYSTEM
DI-627
783 Author
: Date
:
2001 AVALON (RM808U)
CIRCUIT INSPECTION
Power source circuit
CIRCUIT DESCRIPTION
This circuit provides power to operate the Body ECU.