Page 1057 of 1897
I13607
Transponder
Key Amplifier
Transponder
Key Coil
1 2
ANT1 ANT2
T6
- DIAGNOSTICSENGINE IMMOBILISER SYSTEM
DI-613
769 Author: Date:
2001 AVALON (RM808U)
Transponder key coil circuit
CIRCUIT DESCRIPTION
DTC No.Detection ItemTrouble Area
B2798/99Communication error
Key
Transponder Key Coil
Transponder Key Amplifier
Wire harness
ECM
WIRING DIAGRAM
DI6LE-01
Page 1059 of 1897
I13606
Transponder Key
Amplifier L-O
W-B+B
GND 1
5 21
3 52B4
B-W
W-B
BatteryEFI Relay
J6
J/C
W-B B2F2
IF16
2G2 2F4
F71
F6 1
B
EDFL MAIN B
4F8
4D8
II BW-BB-W EFI NO. 2 EFI NO. 1
FL Block
T6 Engine Room J/B
J/B No. 4
- DIAGNOSTICSENGINE IMMOBILISER SYSTEM
DI-61 1
767 Author: Date:
2001 AVALON (RM808U)
Power source circuit
CIRCUIT DESCRIPTION
This circuit provides power to operate the Transponder Key ECU
WIRING DIAGRAM
DI6LD-01
Page 1069 of 1897
DI0FY-1 1
I13620
BatteryPower Seat ECU
FL MAIN+B
FL Block
GND SGND
W-BL-O L-O
L-O BR
BRBR
BR
W
A11
CC8
7 19
9 9
7 8 1
11
B A
ABB
J13
J/CJ14
J/C
J11
J/CJ14 J/C
W-B PWR SEAT Driver Side J/B
BRP21 BC1 IA1
P20 1
BC1 ID2 1I 1G
F10F6
IH
BKW-BP20
BC1 DI-494
- DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
650 Author: Date:
2001 AVALON (RM808U)
CIRCUIT INSPECTION
+B Power Source Circuit
CIRCUIT DESCRIPTION
This is the power source for motors such as the slide motor, reclining motor, front vertical motor and rear
vertical motor.
WIRING DIAGRAM
Page 1071 of 1897
DI-496- DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
652 Author: Date:
2001 AVALON (RM808U)
3 Check POWER SEAT fuse.
NG Check for short in all the harness and compo-
nents connected to the POWER SEAT fuse, and
repair them (See attached wiring diagram).
OK
Check and repair harness or connector be-
tween Seat Position Control ECU and battery.
Page 1072 of 1897
I13626
SGND
SYSB J14
J/C
25 19
3C5
FL MAIN
BatteryEngine Room J/B J/B No. 3
IHP21
P21
W-G
DCC ECU-B
FL BlockB
BR BRB 9
BC1
BR 9
IA1
BR
J13
J/C A
A3E14
W-G W-G5
BC1
Driver Side J/B
1B9
1J9
W-L
2C1
2G2
B
F71
F61
B
BRPower Seat ECU
- DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)DI-497
653 Author: Date:
2001 AVALON (RM808U)
ECU Power Source Circuit
CIRCUIT DESCRIPTION
This circuit provides power for ECU operation and is also the power source for the sensor.
WIRING DIAGRAM
DI0G1-09
Page 1074 of 1897
- DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)DI-499
655 Author: Date:
2001 AVALON (RM808U)
3 Check ECU-B No. 2 fuse.
NG Check for short in all the harness and compo-
nents connected to ECU-B No. 2 fuse and repair
them (See attached wiring diagram).
OK
Check and repair harness or connector be-
tween Seat Position Control ECU and battery.
Page 1075 of 1897
I14526
Power Seat ECU
Battery 7
IG 13
8
R-B
43 1
FL MAIN 2
B-L AM1
B FL Block
IG
W-BR-B R-B
Ignition Switch
4
2
W-L W-L
B
ALTBC1 ID1 2
4 1D
1C 1BIG1 RELAY
GAUGE NO. 1
1
2
1
1 55
2H
2G1
F81
F6
I15 W-R
7
IF1P21
AM1 IG1 Driver Side J/B
Engine Room R/B No. 5
Engine Room J/B 3 1
1G
F10
1
W DI-508
- DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
664 Author: Date:
2001 AVALON (RM808U)
Ignition Switch Circuit
CIRCUIT DESCRIPTION
This circuit sends an ignition switch ON or OFF signal to the ECU.
WIRING DIAGRAM
DI0GF-09
Page 1077 of 1897
I13619
Remoto Control Mirror Switch
MIRE
MIRG MIRB 18
2 1 3
Y-G 9
8
7P21
W-L
PP21
P21 15
3 10
14 4 IA1 BC1
PP
Y-G Y-G W-L W-L E
MSW
M+
R5
Power Seat ECU
IA1
IA1BC1
BC1
- DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)DI-515
671 Author: Date:
2001 AVALON (RM808U)
Mirror switch circuit
CIRCUIT DESCRIPTION
This circuit detects the conditions of the mirror selection switch and the mirror position switch.
WIRING DIAGRAM
DI6KZ-01
