2001 TOYOTA AVALON Service Repair Manual

I07709
35.63 ± 0.1 W
Slide
rheostat
35.63 ±
0.1 W
Z15789
Warning Light
Ignition
Switch
BatteryWire Harness
N06640
BE1217
Warning Light
Ignition
Switch
Battery
- BODY ELECTRICALCOMBINATION METER
BE-59
1663 Author
: Date
:
2001 AVALON (RM808U)
15. INSPECT ENGINE COOLANT TEMPERATURE SEND-
ER GAUGE RESISTANCE
Connect the wire harness as shown in the illustration, and ad-
just the ammeter pointer to indicate º0º using the slide rheostat,
then read the rheostat indication.
Temperature °C (°F)Resistance (W)
50 (122.0)160 - 240
120 (248.0)17.1 - 21.2
If resistance value is not as specified, replace the engine cool-
ant sender gauge.
16. INSPECT LOW OIL PRESSURE WARNING LIGHT
(a) Disconnect the connector from the warning switch and
ground terminal on the wire harness side connector.
(b) Turn the ignition switch ON, check that the warning light
lights up.
If the warning light does not light up, test the bulb or inspect wire
harness.
17. INSPECT LOW OIL PRESSURE WARNING SWITCH
OPERATION
(a) Check that continuity exists between the terminal and
ground with the engine stopped.
(b) Check that no continuity exists between the terminal and
ground with the engine running.
HINT:
Oil pressure should be over 29 kPa (0.35 kgf/cm
2, 4.3 psi)
If operation is not as specified, replace the switch.
18. INSPECT BRAKE WARNING LIGHT
(a) Disconnect the connector from the brake fluid warning
switch.
(b) Release the parking brake pedal.
(c) Connect the terminals on the wire harness side of the lev-
el warning switch connector.
(d) Start the engine, check that the warning light lights up.
If the warning light does not light up, test the bulb or wire har-
ness.

N02346
ON OFF
1 2
Z11183
1
Z15790
Warning Light
Ignition
Switch
BatteryWire Harness Side
123 45
6789101112
BE-60
- BODY ELECTRICALCOMBINATION METER
1664 Author
: Date
:
2001 AVALON (RM808U)
19. INSPECT BRAKE FLUID LEVEL WARNING SWITCH
OPERATION
(a) Remove the reservoir tank cap and strainer.
(b) Disconnect the connector.
(c) Check that no continuity exists between the terminals with
the switch OFF (float up).
(d) Use a siphon, etc. to take fluid out of the reservoir tank.
(e) Check that continuity exists between the terminals with
the switch ON (float down).
(f) Pour the fluid back in the reservoir tank.
If operation is not as specified, replace the switch.
20. INSPECT PARKING BRAKE WARNING SWITCH CON-
TINUITY
(a) Check that continuity exists between terminal and switch
body with the switch ON (switch pin released).
(b) Check that no continuity exists between terminal and
switch body with the switch OFF (switch pin pushed in).
If operation is not as specified, replace the switch or inspect
ground point.
21. INSPECT REAR LIGHTS WARNING LIGHT
(a) Disconnect the connector from the light failure sensor and
ground terminal 4 on the wire harness side connector.
(b) Start the engine, check that the warning light lights up.
If the warning light does not light up, test the bulb or inspect wire
harness.

Z07425
Wire harness side:
12 123 45
67 891011
Z05732
Warning Light
Ignition
Switch
Battery
1
I14605
Warning Light
Ignition
Switch
Battery
1 2
- BODY ELECTRICALCOMBINATION METER
BE-61
1665 Author
: Date
:
2001 AVALON (RM808U)
22. INSPECT LIGHT FAILURE SENSOR CIRCUIT
Disconnect the connector from the sensor and inspect the con-
nector on the wire harness side, as shown.
Tester connectionConditionSpecified condition
1 - GroundConstantContinuity*
2 - GroundConstantContinuity*
9 - GroundConstantContinuity*
10 - GroundConstantContinuity*
11 - GroundConstantContinuity
12 - GroundConstantContinuity*
3 - GroundLight control switch OFFNo voltage
3 - GroundLight control switch TAIL or HEADBattery positive voltage
4, 8 - GroundIgnition switch LOCK or ACCNo voltage
4, 8 - GroundIgnition switch ONBattery positive voltage
7 - GroundStop light switch OFFNo voltage
7 - GroundStop light switch ONBattery positive voltage
*: There is resistance because this circuit is grounded through
the bulb.
If the circuit is as specified, replace the sensor.
If the circuit is not as specified, inspect the circuits connected
to other parts.
23. INSPECT OPEN DOOR WARNING LIGHT
Disconnect the connector from the door courtesy switch, and
ground terminal 1 on the wire harness side connector and
check that the warning light lights up.
If the warning light does not light up, inspect the bulb or wire har-
ness.
24. INSPECT DOOR COURTESY SWITCH
(See page BE-31)
25. INSPECT SEAT BELT WARNING LIGHT
(a) Disconnect the connector from the terminals buckle
switch and ground terminal on the wire harness side con-
nector as shown in the illustration.
(b) Turn the ignition switch ON and check that the warning
light lights up.
If the warning light does not light up, check the bulb circuit.

Z14380
ON OFF
BE1217
Warning Light
Ignition
Switch
Battery
N20217
OFF
ONOhmmeter
Z10258
Wire harness side:
12 BE-62
- BODY ELECTRICALCOMBINATION METER
1666 Author
: Date
:
2001 AVALON (RM808U)
26. INSPECT BUCKLE SWITCH CONTINUITY
(a) Check that continuity exists between the terminals on the
switch side connector with the switch ON (belt unfas-
tened).
(b) Check that no continuity exists between the terminals on
the switch side connector with the switch OFF (belt fas-
tened).
27. INSPECT WASHER LEVEL WARNING LIGHT
(a) Disconnect the connectors from the level warning switch.
(b) Connect terminals on the wire harness side connector of
the level warning switch connector.
(c) Turn the ignition switch ON, check that the warning light
come on.
If the warning light does not light up, test the bulb.
28. INSPECT WASHER LEVEL WARING SWITCH
(a) Check that no continuity exists between terminals with the
switch OFF (float up).
(b) Check that continuity exists between terminals with the
switch ON (float down).
If operation is not as specified, replace the switch.
29. INSPECT WASHER FLUID LEVEL WARNING SWITCH
CIRCUIT
Disconnect the switch connector and inspect the connector on
wire harness side.
Tester connectionConditionSpecified condition
2 - GroundConstantContinuity
If the warning light does not light up, test the bulb or inspect wire
harness.

N08958
270°
1 2
3
I14604
Press
1 2
- BODY ELECTRICALCOMBINATION METER
BE-63
1667 Author
: Date
:
2001 AVALON (RM808U)
30. INSPECT LIGHT CONTROL RHEOSTAT OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative lead (-) to terminal 3.
(b) Connect the positive (+) lead from the voltmeter to termi-
nal 2 and the negative lead (-) to terminal 3.
(c) Turn the rheostat knob and check that the voltage
changes.
If operation is not as specified, replace switch.
31. Passenger 's seat only:
INSPECT SEAT BELT WARNING OCCUPANT DETEC-
TION SENSOR CONTINUITY
Check that continuity exists between the terminals 1 and 2
when pressing the sensing part (electric resistance <100W).
If continuity is not as specified, replace the sensor.

BE0IE-03
I12531
Brake Master Cylinder

Brake Fluid Level
Warning Switch
Engine Room
Junction Block

SRS WRN Fuse
Washer Tank

Washer Fluid Level
Warning Switch
Combination Meter

Meter Circuit
Light Control
Rheostat
Driver Side Junction Block

GAUGE No.1 Fuse

PANEL Fuse

ECU-B No.1, 2 Fuss

ECU-IG No.2 Fuse

RAD No.1 Fuse

DOME Fuse

ECU ACC Fuse Parking Brake
Switch
Ignition Switch
Multi Information Display
- BODY ELECTRICALCOMBINATION METER
BE-41
1645 Author
: Date
:
2001 AVALON (RM808U)
COMBINATION METER
LOCATION

I12532
Door Courtesy Switch
Fuel Sender Gauge
Light Failure Sensor Seat Belt Buckle Switch
Engine Coolant Temperature Sender Gauge
Park/Neutral Position Switch Low Oil Pressure Warning Switch
Occupant Detection Sensor
BE-42
- BODY ELECTRICALCOMBINATION METER
1646 Author
: Date
:
2001 AVALON (RM808U)

BE216-01
I21290
Calendar
LIGHT Button
MODE Button RESET/ADJ Button
I21291
I21283
I21284
BE-64
- BODY ELECTRICALCOMPASS
1668 Author
: Date
:
2001 AVALON (RM808U)
COMPASS
ADJUSTMENT
1. MULTI INFORMATION DISPLAY ILLUMINATION
Turn the ignition switch to the ON position and illuminate the all
parts of the display by pushing the ºLIGHTº button.
2. PERFORM CIRCLING CALIBRATION
(a) Push the ºMODEº button several times until ºCOM-
PASSºappears and blinks on the calendar display.
(b) Then push the ºRESET/ADJº button. ºCALIBRATEº ap-
pears and blinks together with the compass display.
(c) Drive the vehicle in a circle until the blinking stops.
(d) If there is not enough space to drive in a circle, drive
around the block until the blinking stops.
(e) When the compass and the calendar display return to
normal mode, calibration is complete