2001 TOYOTA AVALON door lock

I13586
Front
Personal
Light
Vanity Light
Rear Power
Window Switch Wireless Door
Lock Buzzer
Door Lock Assembly

Door Lock Motor

Door Unlock
Detection Switch
Door Courtesy Light Door Courtesy Switch
Buckle Switch Room Light
Rear Power Seat Switch
Door Lock Assembly

Door Lock Motor

Door Unlock Detection Switch
Door Courtesy Switch
Door Courtesy Light
Luggage Compartment Door
Opener Motor and Courtesy
Switch
Passenger Seat Belt Occupant Detection
Sensor
Wireless Door Lock
Receiver
Park/Neutral Position Switch
DI-618
- DIAGNOSTICSBODY CONTROL SYSTEM
774 Author
: Date
:
2001 AVALON (RM808U)

DI6LJ-01
DI-622
- DIAGNOSTICSBODY CONTROL SYSTEM
778 Author
: Date
:
2001 AVALON (RM808U)
PROBLEM SYMPTOMS TABLE
IGNITION SWITCH AND KEY UNLOCK WARNING SWITCH:
SymptomSuspect AreaSee page
Ignition switch is not set to each position.1. Ignition switch
2. Power source circuitBE-16
DI-627
Key unlock warning system does not operate.
(The buzzer does not sound when the driver's door is opened with
the ignition OFF and key inserted)
1. Power source circuit
2. Key unlock warning switch circuit
3. Door courtesy switch circuit
4. Driver door ECU
5. Multiplex communication circuit
6. Body ECU
7. Wire harnessDI-627
DI-637
DI-639
DI-676
DI-718
IN-30
IN-30
Key unlock warning system does not operate.
(The buzzer sounds when the ignition key is ACC or ON)1. Ignition switch
2. Power source circuit
3. Wire harnessBE-16
DI-627
IN-30
HEADLIGHT AND TAILLIGHT SYSTEM (USA):
SymptomSuspect AreaSee page
Only one side headlight does not light.
1. HEAD-(LH, RH) fuse
2. Headlight bulb
3. Wire harnessBE-9
-
IN-30
Headlight does not light.
1. HEAD-(LH, RH) fuse
2. Headlight control relay circuit
3. Light control switch circuit
4. Headlight bulb
5. Wire harnessBE-9
DI-635
DI-631
-
IN-30
ºLo-Beamº does not light.
1. Headlight bulb
2. Headlight dimmer switch
3. Light control switch circuit
4. Wire harness-
DI-631
DI-631
IN-30
ºHi-Beamº does not light.
1. Headlight bulb
2. Headlight dimmer switch
3. Light control switch circuit
4. Wire harness-
DI-631
DI-631
IN-30
ºFlashº does not light.1. Headlight dimmer switch
2. Wire harnessDI-631
IN-30
Only one side taillight does not light.1. Taillight bulb
2. Wire harness-
IN-30
Taillight does not light.
1. TAIL fuse
2. Taillight control relay circuit
3. Light control switch circuit
4. Body ECU
5. Wire harnessBE-9
DI-633
DI-631
IN-30
IN-30
Rear Combination light does not light.
1. Bulb
2. Light failure sensor
3. Wire harness-
BE-53
IN-30

DI-624
- DIAGNOSTICSBODY CONTROL SYSTEM
780 Author
: Date
:
2001 AVALON (RM808U)
INTERIOR LIGHT SYSTEM:
SymptomSuspect AreaSee page
Only one light does not light up.1. Bulb
2. Wire harness-
IN-30
Room light does not light up (All).
1. DOME fuse
2. Body ECU
3. Wire harnessBE-9
IN-30
IN-30
Room light does not light up (Room light only).
1. Bulb
2. Room light assembly
3. Wire harness-
BE-31
IN-30
ºIlluminated Entry Systemº does not operate.
1. Illumination circuit
2. Door courtesy switch circuit
3. Door unlock detection switch circuit
4. Body ECU
5. Wire harnessDI-655
DI-639
DI-643
DI-686
DI-708
IN-30
IN-30
Front personal light does not light up.
1. Bulb
2. Front personal light
3. Body ECU
4. Wire harness-
BE-31
IN-30
IN-30
Rear personal light does not light up.1. Bulb
2. Rear personal light-
BE-31
Vanity light does not light up.
1. Bulb
2. Vanity light
3. Wire harness-
BE-31
IN-30
Luggage room light does not light up.
1. Bulb
2. Luggage compartment light
3. Luggage compartment door courtesy switch circuit
4. Body ECU
5. Wire harness-
BE-31
BE-31
IN-30
IN-30
COMBINATION METER:
SymptomSuspect AreaSee page
Seat Belt warning light does not light up.
1. Warning light bulb
2. Buckle switch circuit
3. Body ECU
4. Meter circuit plate
5. Wire harnessBE-43
BE-53
IN-30
BE-43
IN-30
Open Door warning light does not light up.
1. DOME fuse
2. Warning light bulb
3. Door courtesy switch circuit
4. Illumination circuit
5. Meter circuit plate
6. Wire harnessBE-9
BE-43
DI-639
DI-655
BE-43
IN-30

- DIAGNOSTICSBODY CONTROL SYSTEM
DI-625
781 Author
: Date
:
2001 AVALON (RM808U)
POWER WINDOW CONTROL SYSTEM:
SymptomSuspect AreaSee page
All power window system does not operate.
1. Power main relay
2. Driver door control system
3. Passenger door control systemBE-73
DI-676
DI-677
Driver door window system dose not operate.
1. Driver door control ECU
2. Door lock motor circuit (Driver)
3. Body ECU
4. Wire harnessDI-692
DI-692
DI-641
-
Passenger door window system dose not operate.
1. Passenger door control ECU
2. Door lock motor circuit (Passenger)
3. Body ECU
4. Wire harnessDI-714
DI-714
DI-641
-
Rear power window control system does not operate.
(Both left and right)1. Body ECU
2. Wire harnessIN-30
IN-30
Rear power window control system does not operate.
(Only one side)1. Rear power window switch circuit
2. Body ECU
3. Wire harnessDI-645
IN-30
IN-30
POWER DOOR LOCK CONTROL SYSTEM:
SymptomSuspect AreaSee page
ºDoor lock systemº does not operate at all.
1. GAUGE Fuse
2. DOOR Fuse
3. Driver door control ECU
4. Body ECU
5. Wire Harness-
-
DI-676
IN-30
-
Door lock system does not operate by manual switch.
1. Driver door control ECU
2. Body ECU
3. Wire HarnessDI-676
IN-30
-
Door lock system does not operate by door key.
1. Door Key Lock and Unlock Switch circuit
2. Body ECU
3. Wire Harness
4. Door Lock Link DisconnectedDI-637
IN-30
-
-
Fault in 2-Operation unlock function of Driver's side door key lock
and unlock switch.1. Door Key Lock and Unlock Switch circuit
2. Body ECU
3. Wire HarnessDI-637
IN-30
-
Only one door lock does not operate.1. Door Lock Motor circuit
2. Wire HarnessDI-641
-
Key confinement prevention function does not operate.
1. Key unlock warning switch circuit
2. Driver door control system
3. Passenger door control systemDI-637
DI-676
DI-677
Auto lock/unlock system does not operate.
1. Door lock motor circuit
2. Driver door control system
3. Passenger door control systemDI-641
DI-676
DI-677
LUGGAGE COMPARTMENT DOOR OPENER SYSTEM:
SymptomSuspect AreaSee page
Luggage compartment door opener system does not operate.
1. Luggage door switch circuit
2. Luggage door motor circuit
3. Body ECUDI-647
DI-649
IN-30

DI-626
- DIAGNOSTICSBODY CONTROL SYSTEM
782 Author
: Date
:
2001 AVALON (RM808U)
WIRELESS DOOR LOCK CONTROL SYSTEM:
SymptomSuspect AreaSee page
All functions of wireless door lock control system do not operate.
1. Wireless door lock control receiver circuit
2. Key unlock warning switch circuit
3. Body ECUDI-651
DI-637
IN-30
Lock or unlock function does not operate.
1. Door key lock and unlock switch circuit
2. Door unlock detection switch circuit
3. Body ECUDI-688
DI-710
DI-686
DI-708
IN-30
Automatic lock function operates even if any door is opened within
30 seconds after all doors are unlocked by wireless door lock
control system.1. Door courtesy switch circuit
2. Body ECUDI-639
IN-30
Wireless door lock operates, but the buzzer does not sound.
1. Wireless door lock buzzer circuit
2. Wireless door lock receiver circuit
3. Body ECUDI-653
DI-651
IN-30
Buzzer sound, but wireless door lock function does not operate.1. Wireless door lock receiver circuit
2. Body ECUDI-651
IN-30
Luggage compartment door opener wireless function.1. Luggage compartment door opener motor circuit
2. Body ECUDI-649
IN-30
POWER MIRROR CONTROL SYSTEM:
SymptomSuspect AreaSee page
Mirror does not operate.
1. CIG/RAD fuse
2. Mirror switch circuit
3. Mirror motor
4. Body ECU
5. Wire harnessBE-9
DI-515
BE-1 14
IN-30
IN-30
Mirror operates abnormally.
1. Mirror switch circuit
2. Mirror motor
3. Body ECU
4. Wire harnessDI-515
BE-1 14
IN-30
IN-30
HORN SYSTEM:
SymptomSuspect AreaSee page
Horn system does not operate.
1. HORN fuse
2. Horn circuit
3. Wire harnessBE-9
DI-672
IN-30
Horns blow all the time.1. Horn circuit
2. Wire harnessDI-672
IN-30
One horn operates but the other horn does not operate.1. Horn circuit
2. Wire harnessDI-672
IN-30
Horns operate abnormally.1. Horn circuit
2. Wire harnessDI-672
IN-30

DI-620
- DIAGNOSTICSBODY CONTROL SYSTEM
776 Author
: Date
:
2001 AVALON (RM808U) B4-7 e B5-14
GRWBWi l d l k i i ti i itB4 7 e B5 14
(PRG e GND1)G-R e W-BWireless door lock receiver communication circuit-
B4-8 e B5-14YRWBR l ft id i d DOWN tiBl 1VB4 8 e B5 14
(RLD e GND1)Y-R e W-BRear left side power window DOWN operationBelow 1 V
B4-9 e B5-14
(MPX2 e GND1)G-W e W-BMultiplex communication circuit-
B4-10 e B5-14RBWBDaytime running light system is operatingBelow 1 VB4 10 e B5 14
(DRL e GND1)R-B e W-BConstant10 - 14 V
B4-1 1 e Body ground
(GND2 e Body ground)W-BConstantBelow 1 V
B4 13B5 14Headlight control switch position is HI beam or FLASHBelow 1 VB4-13 e B5-14
(HU e GND1)B-R e W-BHeadlight control switch position is except HI beam or
FLASH10 - 14 V
B4-14 e B5-14PWBLight control switch TAIL or HEADBelow 2 VB4 14 e B5 14
(TAIL e GND1)P e W-BLight control switch OFF10 - 14 V
B14-15 e B5-14YGWBParking brake is usedBelow 1 VB14 15 e B5 14
(PKB e GND1)Y-G e W-BParking brake is not used10 - 14 V
B4-16 e B5-14RWWBWith seat belt ONBelow 1 VB4 16 e B5 14
(DBKL e GND1)R-W e W-BNo seat belt ON10 - 14 V
B4-17 e B5-14RYWBKey is insertedBelow 1 VB4 17 e B5 14
(KSW e GND1)R-Y e W-BKey is not inserted 10 - 14 V
B4-18 e B5-14LG RWBDLC3 i ti i itB4 18 e B5 14
(TC e GND1)LG-R e W-BDLC3 communication circuit-
B4-19 e B5-14LWBNormal condition2 - 3.5 VB4 19 e B5 14
(GSW e GND1)L e W-BWhen wire harness is open4 - 6 V
B4-20 e B5-14PLWBBuzzer sound10 - 14 VB4 20 e B5 14
(BZ e GND1)P-L e W-BBuzzer does not soundBelow 1 V
B4-21 e B5-14LWWBWireless door lock control system is operatedBelow 1 VB4 21 e B5 14
(RDA e GND1)L-W e W-BWireless door lock control system is not operated10 - 14 V
B4-22 e B5-14
(RLU e GND1)G-Y e W-BRear left side power window UP operationBelow 1 V
B4-23 e B5-14
(MPX1 e GND1)V e W-BMultiplex communication circuit-
B4-24 e B5-14
(B e GND1)W-G e W-BConstant10 - 14 V
B4-25 e B5-14LWBLuggage compartment door opener switch is operatedBelow 1 VB4 25 e B5 14
(TR+ e GND1)L e W-BLuggage compartment door opener switch is not operated10 - 14 V
B5-1 e B5-14
(ACTD e GND1)L-W e W-BDriver door lock is operating10 - 14 V
B5-2 e B5-15
(ACT+ e ACT-)L-R e LDoor lock is operating10 - 14 V
B5-3 e B5-14OWBDriver door closed10 - 14 VB5 3 e B5 14
(PCTY e GND1)O e W-BDriver door openedBelow 1 V
B5-4 e B5-14WRWBPassenger seat switch OFF10 - 14 VB5 4 e B5 14
(SEAT e GND1)W-R e W-BPassenger seat switch ONBelow 1 V
B5-5 e B5-14LOWBRear door lockedBelow 2 VB5 5 e B5 14
(LSW e GND1)L-O e W-BRear door unlocked10 - 14 V

I13633
Theft Deterrent ECU
+B2
E
W-B L-R 3C
A5 5
IJ+B1
DOOR NO. 1
10
7 1
2
F7 F6 2G
FL MAIN
Battery 2C 12
1
12 ALT
113D
J9
J/C1B
W-B4B 1G
W
1
F10
B BEngine
Room J/B W-L9
1J9
1B ECU-B
W-GW-G
20
T4
J/B No. 3 Driver Side J/B
Fusible
Link
BlockDriver Side J/B
J/B No. 4
DCC
4A DI-534
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
690 Author
: Date
:
2001 AVALON (RM808U)
ECU Power Source Circuit
CIRCUIT DESCRIPTION
This circuit provides power to operate the theft deterrent ECU.
WIRING DIAGRAM
DI01W-13

I14527
Theft Deterrent ECU
14
IG 2
1
AM1 2
4 3C
AM1 3Ignition Switch
IGY-R
1
ALT FL Block
1
W-B
FL MAIN
BatteryIG1 11
3F18
4H18
4B
13
1B
4
1C Y-R
Y-R
W-R
W-L
W-L7
IF1
1
2G1
2H 5521 3
1B
B-LB F8
F6IG1 RELAY
ECU-IG NO. 2
I15
4
2
T4
Engine Room R/B No. 5
Engine Room J/B Driver Side J/BJ/B No. 3
J/B No. 4
1
1G
F101 W DI-540
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
696 Author
: Date
:
2001 AVALON (RM808U)
Ignition Switch Circuit
CIRCUIT DESCRIPTION
When the ignition switch is turned to the ACC position, battery positive voltage is applied to the terminal ACC
of the ECU. Also, if the ignition switch is turned to the ON position, battery positive voltage is applied to the
terminals ACC and IG of the ECU. When the battery positive voltage is applied to the terminal ACC of the
ECU while the theft deterrent system is activated, the warning stops. Furthermore, power supplied from the
terminals ACC and IG of the ECU is used as power for the door courtesy switch, and position switch, etc.
WIRING DIAGRAM
DI022-14