TOYOTA AVALON 2001 Service Repair Manual

- BODY ELECTRICALTROUBLESHOOTING
BE-7
1611 Author
: Date
:
2001 AVALON (RM808U)
WIRELESS DOOR LOCK CONTROL SYSTEM
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before checking the body control system.
Some functions of wireless door lock control system do not operate.
HINT:
Troubleshooting of the wireless door lock control system is based on the premise that the door lock
control system is operating normally. Accordingly, before troubleshooting the wireless door lock control
system, first make certain that the door lock control system is operating normally.
If the trouble still reappears even though there are no abnormalities in any of the other circuits, then
check and replace the Wireless Door Lock Control Receiver as the last step.
SLIDING ROOF SYSTEM:
SymptomSuspect AreaSee page
Sliding roof system does not operate.
(Door Lock does not operate)1. SUN ROOF Fuse
2. GAUGE Fuse
3. Wire Harness-
-
-
Sliding roof system does not operate.
(Door Lock is normal)
1. Sliding Roof Control Switch
2. Sliding Roof Motor and Limit Switch
3. Sliding Roof Control Relay
4. Wire HarnessBE-103
BE-103
BE-103
-
Sliding roof system operates abnormally.
1. Sliding Roof Control Switch
2. Sliding Roof Motor and Limit Switch
3. Sliding Roof Control Relay
4. Wire HarnessBE-103
BE-103
BE-103
-
Sliding roof system stops operation half way.
(Stones of foreign material trapped in motor assembly)1. Sliding Roof Control Relay and Switch
2. Sliding Roof Motor and Limit Switch
3. Wire HarnessBE-103
BE-103
-
ºKey-of f Sliding Roofº operation does not operate.
1. DOOR Fuse
2. GAUGE Fuse
3. Ignition Switch
4. Body ECU
5. Wire Harness-
-
BE-16
BE-16
-
POWER SEAT CONTROL SYSTEM (w/o Driving position memory driver's seat):
SymptomSuspect AreaSee page
Power seat does not operate.
(Door lock system does not operate)1. DOOR Fuse
2. Wire Harness-
-
Power seat does not operate.
(Door lock system is normal)1. Power Seat Swtich (D,P)
2. Wire HarnessBE-105
-
ºSlide operationº does not operate.
1. Power Seat Switch (D, P)
2. Slide Motor (D, P)
3. Wire HarnessBE-16
BE-105
-
ºFront vertical Operationº does not operate.
1. Power Seat Switch (D, P)
2. Front Vertical Motor (D, P)
3. Wire HarnessBE-105
BE-105
-
ºRear verticalº does not operate.
1. Power Seat Switch
2. Rear Vertical Motor
3. Wire HarnessBE-105
BE-105
-
ºReclining Operationº does not operate.
1. Power Seat Switch (D, P)
2. Reclining Motor (D, P)
3. Wire HarnessBE-105
BE-105
-
(D): Driver's Seat
(P): Passenger's Seat

BE-8
- BODY ELECTRICALTROUBLESHOOTING
1612 Author
: Date
:
2001 AVALON (RM808U)
POWER MIRROR CONTROL SYSTEM:
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before checking the body control system.
ELECTRO CHROMIC MIRROR SYSTEM
SymptomSuspect AreaSee page
Electro Chromic Inner Mirror does not operate.
1. ECU-IG Fuse
2. Elector Chromic Inner Mirror
3. Wire Harness
BE-120
SEAT HEATER SYSTEM:
SymptomSuspect AreaSee page
Seat heaters do not operate.
(Driver's and Passenger's)1. SEAT HEATER Fuse
2. Ignition Main Relay
3. Wire Harness-
BE-122
-
Driver's seat heater does not operate.
1. Seat Heater Switch (Driver's)
2. Seat Heater
3. Wire HarnessBE-122
BE-122
-
Passenger's seat heater does not operate.
1. Seat Heater Switch (Passenger's)
2. Seat Heater
3. Wire HarnessBE-122
BE-122
-
Seat Heater temperature is too hot.1. Seat HeaterBE-122
GARAGE DOOR OPENER SYSTEM
SymptomSuspect AreaSee page
The equipment of which code has been registered does not oper-
ate.1. Garage Door Opener
2. Wire Harness
3. *BE-170
LED does not light up. (Even though either switch is pressed.)1. Garage Door Opener
2. Wire HarnessBE-170
LED does not light up. (Only one switch is pressed.)1. Garage Door OpenerBE-170
* As the GARAGE DOOR OPENER on the vehicle side seems to be normal, check the OPENER on the
equipment side, of which code has been registered.

BE0I1-04
I12796
Left TurnRight Turn
54
1 2 3
15 166
7 8
9 10
11 17
14 13 12
I12792
BE1843
3
2
1
- BODY ELECTRICALTURN SIGNAL AND HAZARD WARNING SYSTEM
BE-29
1633 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION
1. INSPECT TURN SIGNAL SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
Left turn1 - 2Continuity
Neutral-No continuity
Right turn2 - 3Continuity
If continuity is not as specified, replace the switch.
2. INSPECT HAZARD WARNING SWITCH CONTINUITY
ConditionTester connectionSpecified condition
OFF5 - 7Continuity
ON5 - 6,
1 - 2 - 3 - 4Continuity
Illumination circuit8 - 9Continuity
If continuity is not as specified, replace the switch.
3. INSPECT TURN SIGNAL FLASHER OPERATION
(a) Connect the positive (+) lead from the battery to terminal
2 and the negative (-) lead to terminal 3.
(b) Connect the 2 turn signal light bulbs parallel to each other
to terminals 1 and 3, check that the bulbs flash.
HINT:

The turn signal lights should flash 60 or 120 times per min-
ute.

If one of the front or rear turn signal lights has an open cir-
cuit, the number of flashers will be more than 140 per min-
ute.

If operation is not as specified, replace the flasher.

BE0I0-04
I12526
Turn Signal Light
Combination Switch

Turn Signal Switch
Turn Signal Light
Hazard Warning Switch
Flasher Relay
Engine Room Junction Block

HAZ Fuse
Driver Side Junction Block

TURN Fuse
BE-28
- BODY ELECTRICALTURN SIGNAL AND HAZARD WARNING SYSTEM
1632 Author
: Date
:
2001 AVALON (RM808U)
TURN SIGNAL AND HAZARD WARNING SYSTEM
LOCATION

BE1DN-01
I12797
Washer ON
OFF
INT
LO
HI
13 161514 98
17321 54 6 7
10 1211 18
I01313
2 7
16
I01314
2 7
16 17
INT time control
switch positionVoltage
Approx. 1 - 3 sec.
Battery positive voltage
0 Volt
Battery positive voltage
0 Volt Approx. 10 - 15 sec. FAST
SLOW
BE-38
- BODY ELECTRICALWIPER AND WASHER SYSTEM
1642 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION
1. INSPECT WIPER AND WASHER SWITCH CONTINU-
ITY
Switch positionTester connectionSpecified condition
OFF7 - 16Continuity
MIST (w/ Mist wiper)3 - 11Continuity
INT (w/ Intermittent wiper)7 - 16Continuity
LO7 - 17Continuity
HI8 - 17Continuity
Washer ON2 - 11Continuity
If continuity is not as specified, replace the switch.
2. INSPECT WIPER INTERMITTENT OPERATION
(a) Turn the wiper switch to INT position.
(b) Turn the intermittent time control switch to FAST position.
(c) Connect the positive (+) lead from the battery to terminal
16 and the negative (-) lead to terminal 2.
(d) Connect the positive (+) lead from the voltmeter to termi-
nal 7 and the negative (-) lead to terminal 2, check that
the meter needle indicates battery positive voltage.
(e) After connecting terminal 16 to terminal 17, connect to
terminal 2 to terminal 17, check the voltage rises from 0
volts to battery positive voltage with in the times, as
shown in the table.
If operation is not as specified, replace the wiper and washer
switch.

I01313
2 7
16
Washer Switch ON
Battery positive voltageLess than 1 sec. Approx. 3 sec. OFF
0 Volt
I13330
5
4
I12831
3
4
- BODY ELECTRICALWIPER AND WASHER SYSTEM
BE-39
1643 Author
: Date
:
2001 AVALON (RM808U)
3. INSPECT WASHER LINKED OPERATION
(a) Connect the positive (+) lead from the battery to terminal
16 and the negative (-) lead to terminal 2.
(b) Connect the positive (+) lead from the voltmeter to termi-
nal 7 and the negative (-) lead to terminal 2.
(c) Push in the washer switch, and check that the voltage
changes as shown in the table.
If operation is not as specified, replace the wiper and washer
switch.
4. Low speed:
INSPECT WIPER MOTOR OPERATION
Connect the positive (+) lead from the battery to terminal 5 and
the negative (-) lead from the battery to the motor body or termi-
nal 4, and check that the motor operates at low speed.
If operation is not as specified, replace the motor.
5. High speed:
INSPECT WIPER MOTOR OPERATION
Connect the positive (+) lead from the battery to terminal 3 and
the negative (-) lead from the battery to the motor body or termi-
nal 4, and check that the motor operates at high speed.
If operation is not as specified, replace the motor.

I12832
3
4
I12833
2
41
5
N13907
12 BE-40
- BODY ELECTRICALWIPER AND WASHER SYSTEM
1644 Author
: Date
:
2001 AVALON (RM808U)
6. Stopping at stop position:
INSPECT WIPER MOTOR OPERATION
(a) Operate the motor at low speed and stop the motor opera-
tion anywhere except at the stop position by disconnect-
ing positive (+) lead from terminal 3.
(b) Connect terminals 1 and 5.
(c) Connect the positive (+) lead from the battery to terminal
2 and the negative (-) lead from the battery to the motor
body or terminal 4, and check that the motor stops run-
ning at the stop position after the motor operates again.
If operation is not as specified, replace the motor.
7. INSPECT WASHER MOTOR OPERATION
Connect the positive (+) lead from the battery to terminal 2 and
the negative (-) lead to terminal 1, check that the motor oper-
ates.
NOTICE:
These tests must be performed quickly (within 20 seconds)
to prevent the coil from burning out.
If operation is not as specified, replace the motor.

BE0IA-03
I12530
Wiper Motor
Washer Tank

Washer Motor
Combination Switch

Wiper and Washer Switch
Ignition Switch Driver Side Junction Block

WIP Fuse

IG1 Relay
- BODY ELECTRICALWIPER AND WASHER SYSTEM
BE-37
1641 Author
: Date
:
2001 AVALON (RM808U)
WIPER AND WASHER SYSTEM
LOCATION

BE2MA-01
I20790
Key Plate Inserted
ON
OFFWithin. 5 sec.
1 Key Plate Not Inserted
23 910Within. 30 sec.
Once Nine times
- BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE-91
1695 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION
1. INSPECT WIRELESS DOOR LOCK DIAGNOSIS MODE
(a) Start up diagnosis mode.
HINT:
Follow the method below.
(1) Insert the ignition key into the ignition key cylinder.
(2) Remove the ignition key from the ignition key cylin-
der.
(3) Insert the key into the ignition switch.
(4) Turn the ignition switch ON once within 5 sec.
(5) Repeat turning the ignition switch OFF " ON 9
times within 30 sec.
(6) Enter the diagnosis mode, and make sure that the
buzzer sounds.
(b) Finishing the Diagnosis Mode.
During the Diagnosis mode, turn the ignition switch OFF
" ON to go back to the normal mode.
At this time make sure that the buzzer sounds.

I20456
(1) LOCK switch
(2) UNLOCK switch
(3) Luggage door switch
(4) Disagreement of recognition code or
rolling code.
0.13 sec.
0.5 sec.
0.13 sec. 0.25 sec. 0.5 sec.
0.5 sec. 0.5 sec.
OFF ON
OFF ON
OFF ON
OFF ON
While receiving
I06938
Dry cell battery (1.5 V x 2)
Push BE-92
- BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
1696 Author
: Date
:
2001 AVALON (RM808U)
(c) Diagnosis Mode Check.
HINT:
Check how the buzzer sounds when pressing each transmitter
switch.
(1) LOCK switch
(2) UNLOCK switch
(3) Luggage door switch
(4) Disagreement of recognition code or rolling code.
HINT:
If (4) is detected in the Diagnosis Check, conduct the recogni-
tion code registration.
(5) No response from the buzzer.
HINT:
Conduct the following checks.

Check the wireless door lock transmitter.

Check the wireless door lock receiver.
2. INSPECT WIRELESS DOOR LOCK TRANSMITTER
OPERATION
HINT:
Refer to ºWireless door lock control receiver and transmitter re-
placementº.
(a) Using a screwdriver, remove the cover.
(b) Remove the battery (lithium battery).
(c) Install a new or normal battery (lithium battery).
HINT:
When a new or normal battery can not be obtained, connect 2
new 1.5 V batteries in series, connect the battery (+) to the bat-
tery receptacle side terminal and battery (-) to the bottom termi-
nal, then apply 3 V voltage to the transmitter.
(d) In the location where is approx. 1 M away from driver's
outside handle in the right direction, face the key plate of
the transmitter to the vehicle, and check the transmitter
operation when pressing transmission switch on the side
of the transmitter body.
Standard:

Remote control of vehicle door lock can be operated.

LED lights up more than once.
HINT:

The minimum operation distance differs according to op-
erator, the way of holding, and location.

As weak wave is used, operation distance might be short-
ened when noise is detected in strong wave or used fre-
quency.