Illumination TOYOTA LAND CRUISER 1998 Factory Repair Manual

AC3P1-01
I25173
C10 C19
: Bulb
I07872
I25174
C22 C12
AC-104
- AIR CONDITIONINGAIR CONDITIONING CONTROL ASSEMBLY
2829 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSPECTION
1. w/o Navigation system:
INSPECT ILLUMINATION OPERATION
(a) Connect the positive (+) lead from the battery to terminal
C10 and negative (-) lead to terminal C19, then check
that the indicators illuminate.
If operation is not as specified, check the faulty bulb.
(b) Remove the bulb.
(c) Using the tester as shown in the illustration, test the conti-
nuity.
If continuity exists, replace the heater control.
If no continuity exists, replace the bulb.
2. w/o Navigation system:
INSPECT INDICATORS OPERATION
(a) Connect the positive (+) lead from the battery to terminal
C22 and negative (-) lead to terminal C12.
(b) Check that the indicators come on while operate the
switches.
If operation is not as specified, replace the heater control.
3. INSPECT A/C CONTROL ASSEMBLY CIRCUIT
(See page DI-1309)

I25175
A16A8
- AIR CONDITIONINGAIR CONDITIONING CONTROL ASSEMBLY
AC-105
2830 Author
: Date
:
2004 LAND CRUISER (RM1071U)
4. w/ Navigation system:
INSPECT ILLUMINATION OPERATION
(a) Connect the positive (+) lead from the battery to terminal
A8 and negative (-) lead to terminal A16.
(b) Check that the indicators come on while operating the
switches.
If operation is not as specified, replace the heater control.
5. INSPECT A/C CONTROL ASSEMBLY CIRCUIT
(See page DI-1309)

I06720
AC1MC-04
I06715
2
21
I06716
1 3
4
5 8
6 7 9
I06717
1
3 4 5 8
6 7 92
AC-108
- AIR CONDITIONINGREAR A/C CONTROL ASSEMBLY
2833 Author
: Date
:
2004 LAND CRUISER (RM1071U)
REAR A/C CONTROL ASSEMBLY
INSPECTION
1. REMOVE REAR HEATER CONTROL ASSEMBLY
Using a screwdriver, release the 4 claws and pull out the rear
heater control assembly, then disconnect the connector.
2. INSPECT ILLUMINATION OPERATION
Connect battery positive (+) lead to terminal 2 and battery nega-
tive (-) lead to terminal 21 then check that the indicators come
on.
If operation is not as specified, replace the rear A/C control as-
sembly.
3. INSPECT INDICATOR OPERATION
(a) Connect battery positive (+) lead to terminal 1 and battery
negative (-) lead to all the other terminals, then check that
the indicator come on, as shown in the chart.
SwitchTester connection
Auto3
LO4
ME5
HI6
FACE7
Bi-Level8
FOOT9
If operation is not as specified, replace the rear A/C control as-
sembly.
(b) Connect the positive (+) lead from the battery to terminal
2, then check where the indicators dim.
If operation is not as specified, replace the rear A/C control as-
sembly.

BE0RO-03
I01256
1 2 3 4
5 6 7 8 LOCKACC
ON
START
I06372
N20125
1 2 OFF
ON
- BODY ELECTRICALIGNITION SWITCH AND KEY UNLOCK WARNING
SWITCHBE-29
2402 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSPECTION
1. INSPECT IGNITION SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
LOCK-No continuity
ACC2 - 3Continuity
ON2 - 3 - 4
6 - 7Continuity
START1 - 2 - 4
6 - 7 - 8Continuity
If continuity is not as specified, replace the switch.
2. INSPECT IGNITION KEY ILLUMINATION OPERATION
Connect the positive (+) lead from the battery to terminal 1 and
the negative (-) lead to terminal 2, and check that the indicator
light lights up.
If operation is not as specified, replace the switch.
3. INSPECT KEY UNLOCK WARNING SWITCH CONTI-
NUITY
Switch positionTester connectionSpecified condition
OFF (Key removed)-No continuity
ON (Key set)1 - 2Continuity
If continuity is not as specified, replace the switch.
Connect the switch connector and inspect the connector on
wire harness side from the back side, as shown.

BE2E5-01
I25537
Connector ºAº
Connector ºBº
To Tail Light
Microphone
Connector ºDº
Garage Door
Opener
Connector ºCºIllumination LED
DOME Fuse
Combination
Switch
TA I L
Relay
Connector ºEº
SW1
SW2
SW3
Circuit
Plate
(Garage
Door
Opener)
Connector ºEºConnector ºFº
Connector ºGº
MIC
AMP
BE-182
- BODY ELECTRICALOVERHEAD JUNCTION BLOCK
2555 Author
: Date
:
2004 LAND CRUISER (RM1071U)
CIRCUIT

I24662
1 2
34A
Circuit Plate
(Garage Door Opener Switch)Main Circuit Plate
CB
G
E
D
BE-184
- BODY ELECTRICALOVERHEAD JUNCTION BLOCK
2557 Author
: Date
:
2004 LAND CRUISER (RM1071U)Parts No.
Connector nameRelated to systems
A, BVehicle wire harness connector-
COverhead console illumination connector (Unbar)Overhead junction block illumination
DGarage door opener ECU connectorGarage door opener system
EGarage door opener ECU connectorGarage door opener system
GVoice recognition connectorNavigation system
1Garage door opener substrate flat harness connectorGarage door opener system
2Garage door opener switchGarage door opener system
3Garage door opener LED (Green)Garage door opener system
4Garage door opener operate indicator LED (Red)Garage door opener system

BE0S5-05
I06114
I07503
OPEN
I06238
CLOSE
I07504
OPEN
- BODY ELECTRICALPOWER REAR QUARTER WINDOW SYSTEM
BE-85
2458 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSPECTION
1. INSPECT POWER QUARTER WINDOW SWITCH CON-
TINUITY
Switch positionTester connectionSpecified condition
CLOSE3 - 6
4 - 5Continuity
OFF-Continuity
OPEN3 - 4
5 - 6Continuity
Illumination Circuit1 - 2Continuity
If continuity is not as specified, replace the switch.
2. Left side:
INSPECT POWER VENT WINDOW MOTOR OPERA-
TION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (-) lead to terminal 2, and check that
the window link moves to OPEN position.
(b) Remove the polarity and check that the window link
moves to CLOSE position.
If operation is not as specified, replace the window motor.
3. Right side:
INSPECT POWER VENT WINDOW MOTOR OPERA-
TION
(a) Connect the positive (+) lead from the battery to terminal
2 and the negative (-) lead to terminal 1, and check that
the window link moves to OPEN position.

BE0S5-05
I06114
I07503
OPEN
I06238
CLOSE
I07504
OPEN
- BODY ELECTRICALPOWER REAR QUARTER WINDOW SYSTEM
BE-85
2458 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSPECTION
1. INSPECT POWER QUARTER WINDOW SWITCH CON-
TINUITY
Switch positionTester connectionSpecified condition
CLOSE3 - 6
4 - 5Continuity
OFF-Continuity
OPEN3 - 4
5 - 6Continuity
Illumination Circuit1 - 2Continuity
If continuity is not as specified, replace the switch.
2. Left side:
INSPECT POWER VENT WINDOW MOTOR OPERA-
TION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (-) lead to terminal 2, and check that
the window link moves to OPEN position.
(b) Remove the polarity and check that the window link
moves to CLOSE position.
If operation is not as specified, replace the window motor.
3. Right side:
INSPECT POWER VENT WINDOW MOTOR OPERA-
TION
(a) Connect the positive (+) lead from the battery to terminal
2 and the negative (-) lead to terminal 1, and check that
the window link moves to OPEN position.

BE2EB-01
I06147
I06148
4 6
I24668
- BODY ELECTRICALSEAT HEATER SYSTEM
BE-121
2494 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSPECTION
1. INSPECT SEAT HEATER SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
HI3 - 4
5 - 6Continuity
OFF-No continuity
LO4 - 5Continuity
Illumination circuit1 - 2Continuity
If continuity is not as specified, replace the switch.
2. INSPECT SEAT HEATER INDICATOR LIGHT OPERA-
TION
(a) Connect the positive (+) lead from the battery to terminal
6 and the negative (-) lead to terminal 4.
(b) Push the seat heater switch Right or Left side and check
that the indicator light lights up.
If operation is not as specified, replace the switch and inspect
the circuits connected to other parts.
3. INSPECT SEAT HEATER ASSY (SEAT CUSHION)
CONTINUITY
Inspect the seat heater assy between terminals, as shown.
Tester connectionConditionSpecified condition
1 - 4ConstantContinuity
2 - 3ConstantContinuity
If continuity is not as specified, replace the seat heater assy.

BE01J-17
BE-2
- BODY ELECTRICALTROUBLESHOOTING
2375 Author
: Date
:
2004 LAND CRUISER (RM1071U)
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
IGNITION SWITCH AND KEY UNLOCK WARNING SWITCH:
This system uses the body control system, so check the body control system before you proceed with trou-
bleshooting (See page DI-1038).
SymptomSuspect AreaSee page
Ignition switch is not set to each position.4. Ignition switch
5. Power source circuitBE-29
-
Ignition key illumination does not light up.
1. Bulb
2. Body ECU
3. Wire Hauness-
DI-1038
-
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. Key Unlock Warning Switch
2. Door Courtesy Switch
3. Wire HarnessBE-29
BE-44
-
Key unlock warning system does not operate.
(The buzzer sounds when the ignition key is in ACC or ON)1. Ignition Switch
2. Wire HarnessBE-29
-
HEADLIGHT AND TAILLIGHT SYSTEM:
This system uses the body control system, so check the body control system before you proceed with trou-
bleshooting (See page DI-1038).
SymptomSuspect AreaSee page
ºAutomatic light control systemº does not operate.
1. Automatic Light Control Sensor
2. Light Control Switch
3. Door Courtesy Switch
4. Wire HarnessBE-32
BE-32
BE-44
-
Auto turn-off system does not operate when the driver's door is
opened.1. Drivers Door Courtesy SwitchBE-44
Auto turn-off system:
Headlight and taillight do not come on.1. Body ECU
2. Wire HarnessDI-1038
-
Auto turn-off system:
Headlight and taillight stay on.1. Body ECU
2. Wire HarnessDI-1038
-
Only one headlight comes on.
1. Daytime Running Light No.3, 4 Relays
2. Body ECU
3. Bulb
4. Wire HarnessBE-32
BE-32
-
-
ºLO-beamº does not light (All).1. Engine Room J/B Relay Circuit
2. Wire HarnessBE-15
-
ºLO-beamº does not light (One side).
1. Bulb
2. H-LP L-LWR Fuse
3. H-LP R-LWR Fuse
4. Wire Harness-
-
-
-
ºHI-beamº does not light (All).
1. Headlight Dimmer Switch
2. Body ECU
3. Wire HarnessBE-32
BE-32
-
ºHI-beamº does not light (One side).
1. Bulb
2. H-LP L-UPR Fuse
3. H-LP R-UPR Fuse
4. Daytime Running Light No.3, 4 Relays
5. Wire Harness-
-
-
BE-32
-
ºFlashº does not light.
1. Headlight Dimmer Switch
2. Body ECU
3. Wire HarnessBE-32
BE-32
-