Page 1777 of 1943

BE1V0±02
I17855
I14261
2
I14287
ON
OFF
I11720
I01267
ON
OFF
± BODY ELECTRICALINTERIOR LIGHT SYSTEM
BE±27
2001 PRIUS (RM778U)
INSPECTION
1. INSPECT FRONT PERSONAL LIGHT CONTINUITY
Using an ohmmeter, check that continuity exists between termi-
nals.
If continuity is not as specified, replace the light assembly or
bulb.
2. INSPECT INTERIOR LIGHT CONTINUITY
(a) Disconnect the connector from the room light.
(b) Turn the room light switch ON, check that continuity exists
between terminal 1 and body ground.
If continuity is not as specified, replace the light assembly or
bulb.
3. INSPECT DOOR COURTESY SWITCH CONTINUITY
(a) Check that continuity exists between terminals and the
switch body with the switch ON (Switch pin released:
opened door).
(b) Check that no continuity exists between terminals and the
switch body with the switch OFF (Switch pin pushed in:
closed door).
If operation is not as specified, replace the switch.
4. INSPECT LICENCE PLATE LIGHT CONTINUITY
Using an ohmmeter, check that continuity exists between termi-
nals.
If continuity is not as specified, replace the light assembly or
bulb.
5. INSPECT LUGGAGE COMPARTMENT DOOR COUR-
TESY SWITCH CONTINUITY
(a) Check that continuity exists between terminals and the
switch body with the switch ON (Switch pin released:
opened door).
(b) Check that no continuity exists between terminals and the
switch body with the switch OFF (Switch pin pushed in:
closed door).
If operation is not as specified, replace the switch.
Page 1778 of 1943
I01268
1 2 BE±28
± BODY ELECTRICALINTERIOR LIGHT SYSTEM
2001 PRIUS (RM778U)
6. INSPECT LUGGAGE COMPARTMENT LIGHT CONTI-
NUITY
Using an ohmmeter, check that continuity exists between termi-
nals.
If continuity is not as specified, replace the light assembly or
bulb.
Page 1779 of 1943

I14298
2 87
11
17
16
MISTLO
OFF HI
INT
Washer ON
BE1V1±01
I01313
2 7
16
I01314
2 7
16 17
INT time control
switch positionVoltage
Approx. 1 ~ 3 sec.
Battery voltage
0 Volt
Battery voltage
0 Volt Approx. 10 ~ 15 secs. FAST
SLOW
BE±34
± BODY ELECTRICALWIPER AND WASHER SYSTEM
2001 PRIUS (RM778U)
INSPECTION
1. INSPECT FRONT WIPER AND WASHER SWITCH
CONTINUITY
Switch positionTester connectionSpecified condition
OFF7 ± 16Continuity
INT7 ± 16Continuity
LO7 ± 17Continuity
HI8 ± 17Continuity
Washer ON2 ± 11Continuity
If continuity is not as specified, replace the switch.
2. INSPECT FRONT WIPER INTERMITTENT OPERA-
TION
(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 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 voltage with in the times, as shown in the
table.
If operation is not as specified, replace the wiper and washer
switch.
Page 1780 of 1943

I01313
2 7
16
Washer Switch ON
Battery voltageLess than 1 sec. Approx. 3 secs. OFF
0 Volt
I11672
54
I11673
4 3
I11674
5
4
± BODY ELECTRICALWIPER AND WASHER SYSTEM
BE±35
2001 PRIUS (RM778U)
3. INSPECT FRONT 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 FRONT WIPER MOTOR OPERATION
Connect the positive (+) lead from the battery to terminal 5 and
the negative (±) lead to terminal 4, check that the motor oper-
ates at low speed.
If operation is not as specified, replace the motor.
5. High Speed:
INSPECT FRONT WIPER MOTOR OPERATION
Connect the positive (+) lead from the battery to terminal 3 and
the negative (±) lead to terminal 4, check that the motor oper-
ates at high speed.
If operation is not as specified, replace the motor.
6. Stopping at Stop Position:
INSPECT FRONT 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 5.
Page 1781 of 1943
I11675
1
54 2
BE±36
± BODY ELECTRICALWIPER AND WASHER SYSTEM
2001 PRIUS (RM778U)
(b) Connect terminals 1 and 5.
(c) Connect the positive (+) lead from the battery to terminal
2 and negative (±) lead to terminal 4, check that the motor
stops running at the stop position after the motor operates
again.
If operation is not as specified, replace the motor.
Page 1782 of 1943
BE1VS±02
I18849
Brake Master Cylinder
Brake Fluid Level Warning Switch
Combination Meter Assembly
Meter Circuit
Multi Display
Ignition Switch
Instrument Panel J/B
Body ECU
GAUGE Fuse
Stop Light Switch
Engine Room J/B
DOME Fuse
Seat Belt Buckle Switch
Occupant Detection
Sensor
± BODY ELECTRICALCOMBINATION METER
BE±37
1704 Author: Date:
2001 PRIUS (RM778U)
COMBINATION METER
LOCATION
Page 1783 of 1943
I17784
Door Courtesy Switch
Fuel Sender Gauge
BE±38
± BODY ELECTRICALCOMBINATION METER
1705 Author: Date:
2001 PRIUS (RM778U)
Page 1784 of 1943
BE1VT±02
I19092
Connector ºBºConnector ºAº
± BODY ELECTRICALCOMBINATION METER
BE±39
2001 PRIUS (RM778U)
CIRCUIT