Page 3641 of 4770
BE0A5±02
N18012
Combination Switch
Light Control Switch
Headlight Dimmer Switch
Switch Body
Combination Switch
Wiper and Washer Switch Spiral Cable
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
BE±23
2233 Author: Date:
2001 CAMRY (RM819U)
COMPONENTS
Page 3642 of 4770

N20149
HEADHi beam
TAIL
OFF
Flash
87
17 1614
13
BE10D±02
Z08521
1
2
341 2
43
N14863
12
35
12 35
I21684
Wire Harness Side
3 2 1745 98
116
1015 12 1413 16 17 18 BE±24
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
2234 Author: Date:
2001 CAMRY (RM819U)
INSPECTION
1. INSPECT LIGHT CONTROL SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
OFF±No continuity
TAIL14 ± 16Continuity
HEAD13 ± 14 ± 16Continuity
If continuity is not as specified, replace the switch.
2. INSPECT HEADLIGHT DIMMER SWITCH CONTINU-
ITY
Switch positionTester connectionSpecified condition
Low beam16 ± 17Continuity
High beam7 ± 16Continuity
Flash7 ± 8 ± 16Continuity
If continuity is not as specified, replace the switch.
3. INSPECT HEADLIGHT RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 ± 2Continuity
Apply B+ between
terminals 1 and 2.3 ± 4Continuity
If continuity is not as specified, replace the relay.
4. INSPECT TAILLIGHT CONTROL RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 ± 2Continuity
Apply B+ between
terminals 1 and 2.3 ± 5Continuity
If continuity is not as specified, replace the relay.
5. w/ Daytime running light system:
INSPECT DAYTIME RUNNING LIGHT RELAY (MAIN)
CIRCUIT
Disconnect the connector from the relay and inspect the con-
nector on the wire harness side.
Page 3643 of 4770

Z08523
1
2
341 2
43
I21683
12
34
1
2 4
3
55
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
BE±25
2235 Author: Date:
2001 CAMRY (RM819U)Tester connection
ConditionSpecified condition
1 ± GroundConstantBattery positive voltage
2 ± GroundConstantBattery positive voltage
3 ± GroundConstantBattery positive voltage
4 ± GroundLight control switch position OFF or HEADNo voltage
4 ± GroundLight control switch position TAILContinuity
5 ± GroundConstantBattery positive voltage
7 ± GroundLight control switch position OFF or TAILNo continuity
7 ± GroundLight control switch position HEADContinuity
8 ± GroundHeadlight dimmer switch position
Low beamNo continuity
8 ± GroundHeadlight dimmer switch position
High beam of FlashContinuity
9 ± GroundEngine StopNo voltage
9 ± GroundEngine RunningBattery positive voltage
10 ± GroundIgnition switch position LOCK or ACCNo voltage
10 ± GroundIgnition switch position ON or STARTBattery positive voltage
14 ± GroundConstantContinuity
17 ± GroundBrake fluid level warning position OFFNo continuity
17 ± GroundBrake fluid level warning position ONContinuity
18 ± GroundParking brake switch position OFF
(Parking brake lever released)No continuity
18 ± GroundParking brake switch position ON
(Parking brake lever pulled up)Continuity
If circuit is as specified, try replacing the relay with a new one.
If circuit is not as specified, inspect the circuits connected to oth-
er parts.
6. w/ Daytime running light system:
INSPECT DAYTIME RUNNING LIGHT NO.2 RELAY
CONTINUITY
ConditionTester connectionSpecified condition
Constant1 ± 4, 2 ± 4Continuity
Apply B+ between
terminals 2 and 4.3 ± 4Continuity
If continuity is not as specified, replace the relay.
7. w/ Daytime running light system:
INSPECT DAYTIME RUNNING LIGHT NO.3 RELAY-
CONTINUITY
ConditionTester connectionSpecified condition
Constant1 ± 2, 3 ± 4Continuity
Apply B+ between
terminals 1 and 2.3 ± 5Continuity
If continuity is not as specified, replace the relay.
Page 3644 of 4770

Z08559
1
2
341 2
43
I08422
I08423
BE±26
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
2236 Author: Date:
2001 CAMRY (RM819U)
8. w/ Daytime running light system:
INSPECT DAYTIME RUNNING LIGHT NO.4 RELAY
CONTINUITY
ConditionTester connectionSpecified condition
Constant3 ± 4Continuity
Apply B+ between
terminals 3 and 4.1 ± 2Continuity
If continuity is not as specified, replace the relay.
9. INSPECT LIGHT AUTO TURN OFF SYSTEM
(See Integration relay circuit on page BE±14)
10. w/ Automatic Light Control System:
INSPECT AUTOMATIC LIGHT CONTROL
(a) Turn the ignition switch ON.
(b) Turn the light control switch to OFF.
(c) Parking brake lever released.
(d) Gradually cover the top of the sensor.
(e) Verify that the lights should turn ON the accessory lights
and the headlights.
11. w/ Automatic Light Control System:
INSPECT AUTOMATIC LIGHT CONTROL
(a) Gradually expose the sensor.
(b) Verify that the lights should turn OFF the headlights and
the accessory lights.
12. w/ Automatic Light Control System:
INSPECT LIGHT±OFF CONDITION
(a) Turn the ignition switch ON.
(b) Gradually cover the top of the sensor.
Lights auto ON:
13. w/ Automatic Light Control System:
INSPECT LIGHTS±ON CONDITION
(a) Open the driver's door while the ignition switch is OFF.
(b) Turn the light control switch to OFF leaving the door open
and cover the top of the sensor, and verify that the lights
go on when the ignition switch is turned ON.
Page 3645 of 4770

I01254
Wire harness side:
4 3 2 1
I01255
1
2 34
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
BE±27
2237 Author: Date:
2001 CAMRY (RM819U)
14. w/ Automatic light control system:
INSPECT AUTOMATIC LIGHT CONTROL SENSOR
CIRCUIT
Connector disconnected:
Disconnect the connector from the sensor and inspect the con-
nector on the wire harness side, as shown in the table.
Tester connectionConditionSpecified condition
3 ± GroundConstantConstant
1 ± GroundIgnition switch LOCK or ACCNo voltage
1 ± GroundIgnition switch ONBattery positive voltage
4 ± GroundIgnition switch LOCK or ACCNo voltage
4 ± GroundIgnition switch ON5.2 ± 9.0 v
If circuit is as specified, perform the inspection on the following
page.
If the circuit is not as specified, inspect the circuit connected to
other parts.
15. INSPECT AUTOMATIC LIGHT CONTROL SENSOR
CIRCUIT
Connector disconnected:
Connect the wire harness side connector to the sensor and in-
spect wire harness side connector from the back side, as
shown.
HINT:
Ignition switch ON.
Light control switch OFF.
Vehicle's surroundings are bright.
Tester connectionConditionSpecified condition
3 ± GroundConstantContinuity
1 ± GroundIgnition switch LOCK or ACCNo voltage
1 ± GroundIgnition switch ON9.5 V or more
Vehicle under the direct sun light.
(Sensor is not covered)Taillight and Headlight are ON.
If circuit is as specified, try replacing the sensor with a new one.
If the circuit is not as specified, inspect the circuit connected to
other parts.
Page 3646 of 4770

BE20X±01
I21909
For Adjustment
in Vertical Direction
BE±28
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
2238 Author: Date:
2001 CAMRY (RM819U)
ADJUSTMENT
ADJUST HEADLIGHT AIM ONLY
(a) Place the vehicle in the following conditions.
The area around the headlight is not deformed.
The vehicle is parked on a level surface.
Tire inflation pressure is the specified value.
A driver is in the driver's seat and the vehicle is in a state ready for driving (with a tank full).
The vehicle has been bounced several times.
(b) Check the headlight aiming.
(1) Prepare a thick white paper.
(2) Stand the paper perpendicular to the ground at the position 9.84 ft away from the headlights.
(3) Ensure that the center line of the vehicle and the paper face forms a 90±degree angle as shown
in the illustration.
(4) Draw a horizontal line (H line) on the paper, showing where the headlights should strike.
(5) Draw a vertical line (V line) to where the center line of the vehicle is to be.
(6) Draw 2 vertical lines to where the the headlights should strike (V RH and V LH lines).
(7) Draw a horizontal line (by connecting the both low beam center marks) to where the headlights
should strike (H RH and H LH lines).
HINT:
The H RH and H LH line is 0.4° below the horizontal line (H line) of the light axis.
(8) Start the engine.
Page 3647 of 4770

I21230
0.4°
3 m (9.84 ft)H 20.9 mm
(0.823 in.)
7
V RH Line
90°
V LH Line 4
V LH LineV Line V RH Line 656
O: step No.
H4
Low Beam
20.9 mm
(0.823 in.)
1,180 mm (46.47 in.)* 1.180 mm
(46.46 in.)*
7
H RH and
H LH lines Low Beam
910 mm (35.83 in.) High Beam
V LH LineV Line
V RH Line 656
20.9 mm
(0.823 in.)
H4
0 mm
(0 in.)H5
0°
3 m (9.84 ft)
90° V RH Line
V LH Line 910 mm
(35.83 in.) High Beam
20.9 mm
(0.823 in.)
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
BE±29
2239 Author: Date:
2001 CAMRY (RM819U)
(9) Turn the headlights ON.
(10) Check that the headlights properly strike the position shown in the illustration.
(11) If not, adjust the lights in the vertical direction.
HINT:
As shown in the illustration, adjust each aim of the RH and LH lights.
The value of the ºHigh Beamº aim is a reference value. Since the horizontal direction is impossible to
adjust, the value * of the ºLow Beamº aim is also a reference value.
(c) When adjusting it in the vertical direction:
Using adjusting bolt (vertical direction), adjust the headlight aim to within the specified range.
Page 3648 of 4770

IG0DB±01
SPARK TEST
CHECK CONNECTION OF IGNITION COIL WITH
CHECK RESISTANCE OF HIGH±TENSION CORDS
CHECK POWER SUPPLY TO IGNITION COILS WITH
1. Turn ignition switch to ON.
2. Check that there is battery positive voltage at ignition
CHECK RESISTANCE OF IGNITION COILS
Resistance:
SecondaryCold Hot
9.7 ± 16.7 kW12.4 ± 19.6 kW
CHECK RESISTANCE OF SENSORS
Resistance: Cold Hot
Camshaft position sensor
Crankshaft position sensor835 ± 1,400 W
985 ± 1,600 W1,060 ± 1,645 W
1,265 ± 1,890 W
CHECK IGT SIGNAL FROM ECM
TRY ANOTHER IGNITERIGNITER CONNECTORS
(See step 2)
Maximum resistance: 25 kW per cord
IGNITERS
coil positive (+) terminal.
(See step 4)
(See steps 5 and 6)
(See page DI±22) NO
OK
OK
OK
OK
OK
BAD
BAD
BAD
BAD
BAD
BAD
Connect securely.
Replace cord(s).
Check wiring between ignition switch to ignition
Replace ignition coil(s) with igniter(s).
Replace sensor(s).
Check wiring between ECM and igniters, and coils with igniters.
then try another ECM.
± IGNITION (5S±FE)IGNITION SYSTEM
IG±1
1683 Author: Date:
IGNITION SYSTEM
ON±VEHICLE INSPECTION
NOTICE:
ºColdº and ºHotº in these sentences express the temperature of the coils themselves. ºColdº is from
±10°C (14°F) to 50°C (122°F) and ºHotº is from 50°C (122°F) to 100°C (212°F).
1. INSPECT SPARK TEST
Check that the spark occurs.
(1) Disconnect the high±tension cord from the spark plug.
(2) Remove the spark plug.
(3) Install the spark plug to the high±tension cord.
(4) Ground the spark plug.
(5) See if spark occurs while engine is being cranked.
NOTICE:
To prevent gasoline from being injected from injectors during this test, crank the engine for no more
than 5 ± 10 seconds at time.
If the spark does not occur, do the test as follows: