2001 TOYOTA AVALON Wiring diagram

F09824
Battery
FL MAIN F10 F8
F611 1
ALT
BFL BlockB-L 2G 2H1 1 Engine Room J/B B5512 AM1 Engine Room R/B No. 5 W-LIF17
W-L
2
IG1 AM1 4Ignition Switch W-R W
1C 1G
1B 1D
4
4 3 1
1
2
3 10 GAUGE No. 1 Driver Side J/B
IG1 Relay
W-B
IG
ED CUP
BRAKE
Multi DisplayM6 M3M6R-B
3 4
74D 4F13
4 J/B No. 4
R-B
L-O L-O6
IL1
R-WR-W
R-W
R-W
7
IC13A21
Active
Light
RelayR-Y 8A20
6040 74 68
32 ABS & BA &
TRAC & VSC ECU
FSS LBL PKB EBDW SP1
T5
T5
T5
T5 T5
Y-G
L-B
BR (Shielded)15
25 16
2
11
LBL LVL2PKB2BRL
PKB
Y-G Y-G
R-W
R-WJ/B No. 3
3B 3A
3A 3B 5
15
15 14
1Driver Side J/B
B1
Brake Fluid Level
Warning Switch Translate ECU
1H
1I 12
8
R-W
1 2
W-B J1 J/C
B B
W-BEngine Room J/B
44
2D2FW-B P3
Parking
Brake
SwitchA20
A20
A20
A20 DI-330
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
486 Author
: Date
:
2001 AVALON (RM808U)
BRAKE Warning Light Circuit
CIRCUIT DESCRIPTION

The BRAKE warning light lights up when the brake fluid is insufficient, when the parking brake is ap-
plied or when the EBD is defective.

If the translate ECU detects trouble, it makes VSC warning light lights up while prohibiting VSC & TRAC
control. At this time, the ECU records a DTC in memory. Connect terminals Tc and E
1 of the DLC1 or
DLC2 to make BRAKE warning light blink and output the DTC.
WIRING DIAGRAM
DI6OK-02

F09825
(Shielded)
FR-
2
IE1A2016
BR B-W
J4
J/C (Shielded) 1
A9
Right Front
Speed Sensor
19
IE1 18
IE120
BR-W
A
AA
A
BR
(Shielded)ABS & BA & TRAC
& VSC ECU
FR+ A2017
FL-
A2010
FL+ A208 L
B-R
BR (Shielded)
B-R
BR
2 1
A8
Left Front
Speed Sensor
A
(Shielded)RR-
A2012
RR+ A2011
RL-
A2014
RL+ A2013 V
LG
(Shielded) V
LG
(Shielded)Y
GIK110
IK1 11
IK112Y
G
ID111
ID1 21
ID122 2
1 A30
Right
Rear
Speed
Sensor
2
1 A29
Left
Rear
Speed
Sensor
IGBR
BR-W DI-268
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
424 Author
: Date
:
2001 AVALON (RM808U)
WIRING DIAGRAM

F09826
ABS & BA & TRAC
& VSC ECU
R+
SR
SFRH
SFRR
SFLH
SFLR
SRRH
SRRR
SRLH
SRLR
SMC1
SMC2
SRC1
SRC2 GR-R J/B No. 3
IF3Engine Room J/B No. 3
ABS
No. 2Engine
Room
J/BIE1
B-W2
A20
63A 19
3H GR-R
21
GR-RABS Solenoid Relay
FL
Block3
3 3 4
1
3 3
32 W
W-B
8 2F
10 2F
1 2G
1 F8
1 F6
B
FL
MAIN
Battery
EDW-BABS & BA & TRAC
& VSC ActuatorW-L RR176
36
A20
BS
SFRH
SFRR
SFLH
SFLR
SRRH
SRRR
SRLH
SRLR
SMC1
SMC2
SRC1
SRC226
A20
55
A20
5
A20
3
A20
6
A20
4
A20
53
A20
25
A20
49
A20
50
A20
54
A20
52
A20 W-G
W-R
G-O
GR
G-R
Y-B
L-Y
G-Y
V-W
B-Y
R-B B-W
W-G
W-R
G-O
GR
G-R
Y-B
L-Y
G-Y
V-W
B-Y
R-BIE12
IE13
IE14
IE15
IE16
IE17
IE110
IE111
IE112
IE113
IE114
IE115 2
A5
9
A5
11
A5
7
A5
8
A5
4
A5
5
A5
1
A5
3
A5
3
A6
2
A6
5
A6
4
A6 4
2F
B-L
ALT DI-274
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
430 Author
: Date
:
2001 AVALON (RM808U)
WIRING DIAGRAM

F09816
ABS & BA & TRAC
& VSC ECU
Engine RoomR/B No. 3
J/B No. 3
FL Block
FL MAIN7
A20
MR
2
A20 R+
27
A20
MT GR-L
ABS Motor Relay
W
B-L
Battery6
IE1
W-B
ABS GR-L
6
3AGR-R GR-R GR-R
3
3 3
31
23 4
Engine Room J/B 21
IF3
ALTABS No. 419
3H
ABS & BA & TRAC& VSC Actuator
6
A510
A5 L
L
OOEE
IF3
3 Engine Room R/B No. 5
12
215
5 5
5
B1
F61
F81
2G1
2H B DI-276
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
432 Author
: Date
:
2001 AVALON (RM808U)
DTC C0273 / 13 ABS Motor Relay Circuit
CIRCUIT DESCRIPTION
The ABS motor relay supplies power to the brake actuator pump motor. While the ABS & BA & TRAC & VSC
are activated, the ECU switches the motor relay ON and operates the brake actuator pump motor.
DTC No.DTC Detecting ConditionTrouble Area
C0273 / 13Open or short circuit is detected.
ABS motor relay

ABS motor relay circuit
WIRING DIAGRAM
DI6NZ-03

F09826
ABS & BA & TRAC
& VSC ECU
R+
SR
SFRH
SFRR
SFLH
SFLR
SRRH
SRRR
SRLH
SRLR
SMC1
SMC2
SRC1
SRC2 GR-R J/B No. 3
IF3Engine Room J/B No. 3
ABS
No. 2Engine
Room
J/BIE1
B-W2
A20
63A 19
3H GR-R
21
GR-RABS Solenoid Relay
FL
Block3
3 3 4
1
3 3
32 W
W-B
8 2F
10 2F
1 2G
1 F8
1 F6
B
FL
MAIN
Battery
EDW-BABS & BA & TRAC
& VSC ActuatorW-L RR176
36
A20
BS
SFRH
SFRR
SFLH
SFLR
SRRH
SRRR
SRLH
SRLR
SMC1
SMC2
SRC1
SRC226
A20
55
A20
5
A20
3
A20
6
A20
4
A20
53
A20
25
A20
49
A20
50
A20
54
A20
52
A20 W-G
W-R
G-O
GR
G-R
Y-B
L-Y
G-Y
V-W
B-Y
R-B B-W
W-G
W-R
G-O
GR
G-R
Y-B
L-Y
G-Y
V-W
B-Y
R-BIE12
IE13
IE14
IE15
IE16
IE17
IE110
IE111
IE112
IE113
IE114
IE115 2
A5
9
A5
11
A5
7
A5
8
A5
4
A5
5
A5
1
A5
3
A5
3
A6
2
A6
5
A6
4
A6 4
2F
B-L
ALT
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI-281
437 Author
: Date
:
2001 AVALON (RM808U)
WIRING DIAGRAM

F09813
Deceleration Sensor
IGA
GNDA
GL1(Shielded)
34
18YGNA
GL1 YIGA
A2078 13
AR
A20
A20ABS & BA & TRAC
& VSC ECU
(Shielded)
W
G ID1
14
ID1
16
ID1
15
ID1 BRBR-W
BR
BR3
Y1
6
Y1
5
Y1
IG
J4
J/CAR
W
G
BR-W
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI-285
441 Author
: Date
:
2001 AVALON (RM808U)
DTC C0365 / 43 Deceleration Sensor Circuit
CIRCUIT DESCRIPTION
Deceleration sensor is combined with yaw rate sensor.
DTC No.DTC Detecting ConditionTrouble Area
C0365 / 43
Detection of any of conditions from 1. through 4.:
1. The sensor signal is out of range, less than 0.25 V or
more than 4.75 V.
2. Deceleration difference between sensor signal and refer-
ence value is large.
3. Offset value of sensor signal is higher than the standard
value.
4. sensor signal change rapidly higher than the value at the
normal condition.

Deceleration sensor

Deceleration sensor circuit
WIRING DIAGRAM
DI6O1-03

F09813
Yaw Rate Sensor
YD
GYW2
YAW 2(Shielded)
75
77GYAW
YAWYD
A2076 1
ABR
A20
A20ABS & BA & TRAC
& VSC ECU
(Shielded)
Y
L BR
Y
LID1
2
ID1
12
ID1
15
ID1 BR
BR-W
BR
BR2
Y1
1
Y1
4
Y1
IGJ4
J/C
ABR-W
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI-287
443 Author
: Date
:
2001 AVALON (RM808U)
DTC C0371 / 55 Yaw Rate Sensor Circuit
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C0371 / 55
Detection of any of conditions from 1. through 4.:
1. The voltage of sensor signal is out of range.
2. The offset value of sensor signal is outside the plausible
range.
3. Sensor signal change rapidly under normal driving.
4. Sensor is more or worse sensitivity than reference yaw
rate during cornering.

Yaw rate sensor

Yaw rate sensor circuit
WIRING DIAGRAM
DI6O2-03

F09814
J/B No. 3
15
3B 15
3AABS & BA & TRAC
& VSC ECU
40
A20
LBL Driver Side J/B
Engine Room J/B
M6
Multi
DisplayIC1 Translate
ECU
L-B 25
T5 11
T5
16
T5R-W
7
R-W
3
4
R-B LVL2LBL
BRL R-W
R-W
Level
Warning Switch12
1I 8
1H
R-W
12
BB J1
J/B
W-B
EDDriver Side J/B
GAUGE No. 1
W-B
W-B
J/B No. 4
10
1DR-B4
4D13
4F 4
2D4
2F
BRAKE
DI-290
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
446 Author
: Date
:
2001 AVALON (RM808U)
DTC C1202 / 44 Brake Fluid Level Warning Switch Cir-
cuit
CIRCUIT DESCRIPTION
The brake fluid level warning switch sends appropriate signals to the ECU when the brake fluid level is low-
ered.
HINT:
Depressing the parking brake pedal turns on the brake warning light, but this DTC No. C1202/44 is not out-
put.
DTC No.DTC Detecting ConditionTrouble Area
C1202 / 44
Fluid level in the brake master cylinder reservoir tank re-
mains low for 60 sec. or more. This means brake fluid
warning switch likes on.
Brake fluid level

Brake fluid level warning switch

Brake fluid level warning switch circuit
WIRING DIAGRAM
DI6O3-01