2001 TOYOTA AVALON light

DI-636
- DIAGNOSTICSBODY CONTROL SYSTEM
792 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Check headlight relay (See page BE-19).
NG Replace the headlight relay.
OK
2 Check wireharness and connector between headlight relay and Body ECU, bat-
tery and headlight relay (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).

- DIAGNOSTICSBODY CONTROL SYSTEM
DI-655
811 Author
: Date
:
2001 AVALON (RM808U)
Illumination circuit
CIRCUIT DESCRIPTION
Receiving the courtesy signal from either of the door ECU, the Body ECU will make the interior light, ignition
light, and foot light come on.
DI6LX-01

I13641
P-LP-LP-LP-L
P-L
P-L
P-L 1
4F
4D
4C 11
7
1D 1J9 DOME
W-L
1
11 1
1
12C DCC
2
2G
B
F7 F6FL Block
FL MAINB
BatteryV11
Vanity Light RH
2
V10
Vanity Light RH
2W-B
W-B
2
3P9
Personal Light
ON
OFF
DOOR
I17
Interior Light
ON
OFF
DOOR
4
4D
R-B13
4F
R-BG-R
G-R3
1C5
ILL
10
1D2 GAUGE No. 1IG1 RELAY
11
4
3 4
1C 1B3 1GMulti Display
3
42
2 M7
M6M7
M6 Open Door
Driver Seat Belt
10
M7R
G-W
G-R25
B5
B5
B523
11AJAR
DBEW
PBEW
FL MAIN FL Block
ALT W
1
F101
F6
F81B
B-L
Battery
11
2H 2G W-B W-R
4
IG1 AM1 I15
Ignition Switch
2
W-L7
IF1
IG
AM1
21
55W-L
B2BLBody ECU
IG1 5
G-R
IG1
G-R 11 4C10
P-L
2
1
I14
Ignition
Key
Cylinder
LightG-R Engine Room J/B
Engine Room R/B No.5Engine Room J/B J/B No.4
Driver Side J/B
Passenger
Seat Belt
Driver Side J/B J/B No.4
Driver Side J/B
8W-B
1
G-R
IG1
DI-656
- DIAGNOSTICSBODY CONTROL SYSTEM
812 Author
: Date
:
2001 AVALON (RM808U)
WIRING DIAGRAM

- DIAGNOSTICSBODY CONTROL SYSTEM
DI-657
813 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Check illumination light (Interior light system)(See page BE-31).
NG Replace the failure light.
OK
2 Check wireharness and connector between each illumination light and Body
ECU, battery and each illumination light (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).

I13645
B-R
B-W
R-Y
P
G-O
7 8 13 14 1213Body ECU
2
3
14
4 B4
B4
B4
B4
B4HU
HF
HEAD
TAIL
AUTO
OFF
TAIL
HEAD
AUTO
LOW
HIGH
FLASH
16
W-B
IGC13
Combination Switch

Light Control Switch

Dimmer Switch
- DIAGNOSTICSBODY CONTROL SYSTEM
DI-631
787 Author
: Date
:
2001 AVALON (RM808U)
Light control switch circuit
WIRING DIAGRAM
DI6LL-01

DI-632
- DIAGNOSTICSBODY CONTROL SYSTEM
788 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Check headlight control switch (See page BE-19).
NG Replace the headlight control switch.
OK
2 Check wireharness and connector between headlight control 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).

I13654
L9
Luggage Compartment
Light Switch
1
R-W12 12
4E 4C
RBody ECU
6
B4
LGC
2
L7
Luggage Compartment
Door Unlock MotorL4
IK1
L25
B4TR+ J/B No. 4
- DIAGNOSTICSBODY CONTROL SYSTEM
DI-649
805 Author
: Date
:
2001 AVALON (RM808U)
Luggage opener motor circuit
WIRING DIAGRAM
DI6LU-01

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