2001 TOYOTA AVALON Wiring diagram

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

I13637
B2
2G Engine Room J/B
DOOR No. 2
12
2C 2CW-L
L-RW-G
1
F7
F61FL Block
ALT1
F10
F81W
B-L
1
1
2H 2G
B
B52 1AM1
5
7
IF1
W-L
R-G
3
ACC
AM1 2IG1
W-R
FL MAIN
Battery 41B514
3C 3D
W-G24
B4Body ECU
B
9
1B
1J
1J
1C
1G W-L
L-R
W
R-G1 105 9ECU-B
7
ECU-ACC
3
1 DOOR No. 1BDR2
ACC
BDR1
1IG1 RELAY
42
3ECU-IG No. 2
2
SIG
4
1C
W-B
W-BW-B
W-B BB
IF J4 J/C
11
B4
B5 14GND2
GND1 DCC
1
Engine Room J/B
Engine Room R/B No. 5J/B No. 3
Driver Side J/B
3
Ignition Switch
IG W-L DI-628
- DIAGNOSTICSBODY CONTROL SYSTEM
784 Author
: Date
:
2001 AVALON (RM808U)
WIRING DIAGRAM

I13652
BatteryW-B
BM12
BB1
W-B
P151 22
5
Power WIndow
Motor RH
GP11
Power WIndow
Control Switch
Rear RH
D E
UB
DOWN
UP4
1
6L-W
R-BR-B R-B
G-B
G-BG-B 34
3 11 2 FL MAINB 1 1
F6 F10ALT W1G 1153
2
22
B5
B510RRD
RRU 12
1L PWR RELAY
P-B
6
IB2
P-B7
WLSWLG
D19
Driver
Door
ECU
1
1L RL P/W
10
1A BKJ11
J/C
A
W-B12
BA1
W-BP10
Power WIndow Control
Switch Rear LH
E
D
U R 212 P14
Power Window
Motor LHG
5DOWN
UP
B11
188
BA1
Y-R
Y-R
G-YG-Y
G-Y
PL-Y 4 6 3
3
2ID1
17
1B4
B422RLD
RLU
RBA1
ID1
BA1
IA1
RR P/W
FL Block
BB1
BB1
BB1IM2
IM2
IM2Body ECU
Driver Side J/BY-R
P
LG 3
- DIAGNOSTICSBODY CONTROL SYSTEM
DI-645
801 Author
: Date
:
2001 AVALON (RM808U)
Rear power window switch circuit
CIRCUIT DESCRIPTION
Power window switch circuit can be checked using DTC check. (Refer to DI-738)
WIRING DIAGRAM
DI6LS-01

I13638
Battery FL MAIN
B 1 1
ALT
F10 F6 W111 STOP
1G 1D
R2
S4
Stop Light Switch
1
G-W3
1D11
STOP Engine Room J/BBody ECU
Engine
Room J/B DI-662
- DIAGNOSTICSBODY CONTROL SYSTEM
818 Author
: Date
:
2001 AVALON (RM808U)
Stop light switch circuit
CIRCUIT DESCRIPTION
The Body ECU is detecting the condition of the stop light switch.
WIRING DIAGRAM
DI6M0-01

I13646
FL Block
11
F6 F10
B
FL MAINALT
BatteryW1
1GTAIL RELAY
53
12
to Taillight9Body ECU
TRLY Driver Side J/B
- DIAGNOSTICSBODY CONTROL SYSTEM
DI-633
789 Author
: Date
:
2001 AVALON (RM808U)
Taillight relay circuit
CIRCUIT DESCRIPTION
Taillight relay will be ºONº by operating the taillight switch. The transistor which activates the tail light relay
has two sorts: one activates by the tail light switch for fail safe and the other activates by CPU.
WIRING DIAGRAM
DI6LM-01

I13656
IJJ9
J/C AW-B1W6
Wireless Door
Lock Buzzer
Buzzer2
P-L20
B4Body ECU
BZ
- DIAGNOSTICSBODY CONTROL SYSTEM
DI-653
809 Author
: Date
:
2001 AVALON (RM808U)
Wireless door lock buzzer circuit
WIRING DIAGRAM
DI6LW-01

I13655
W-B88
4F 4E
W-B1
2 D8
Wireless Door
Control Receiver
L-WL-W 9
IK221Body ECU
B4 RDA RDA
E
PRG
+B
P-L1
1
4D
4E
P-L5320
G-R G-R7
B4 PRG
B
BJ6
J/C
II7
1D
FL
MAIN DOME
9
1J
W-L
2
2G 2C1
B
1
1
F7 F6
BBattery J/B No. 4
J/B No. 4
IK2
Driver Side J/B
DCC Engine Room J/B
FL Block W-B
- DIAGNOSTICSBODY CONTROL SYSTEM
DI-651
807 Author
: Date
:
2001 AVALON (RM808U)
Wireless door lock tuner circuit
CIRCUIT DESCRIPTION
The signal from the transmitter will be input to the body ECU through RDA line. RDA line is diagnosed by
the Body ECU, so check DTC also in case of the failure of the wireless function.
WIRING DIAGRAM
DI6LV-01

DI08M-14
Duty Ratio =A + BA
x 100 (%)
ON
OFFA
B
1 cycle
I13618
Cruise Control ECU
MC MO
R-B Cruise Control Actuator
R 1
215
C4
C15
MO
MCP
P II1 15
II1 14
7
- DIAGNOSTICSCRUISE CONTROL SYSTEM
DI-561
717 Author
: Date
:
2001 AVALON (RM808U)
CIRCUIT INSPECTION
DTC 11, 15 Actuator Motor Circuit
CIRCUIT DESCRIPTION
The actuator motor is operated by signals from the ECU. Acceleration and deceleration signals are trans-
mitted according to changes in the Duty Ratio (See below).
Duty Ratio
The duty ratio is the ratio of the period of continuity in one cycle. For example, if A is the period of continuity
in one cycle, and B is the period of non-continuity.
DTC No.Detection ItemTrouble Area
11Short in actuator motor circuit.

Actuator motor

Harness or connector between cruise control ECU and
actuator motor

Cruise control ECU
15Open in actuator motor circuit.
Actuator motor
WIRING DIAGRAM