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
-
- BODY ELECTRICALTROUBLESHOOTING
BE-3
2376 Author: Date:
2004 LAND CRUISER (RM1071U) Headlight does not come on.
1. Engine Room J/B Relay Circuit
2. Body ECU
3. Daytime Running Light No.3, 4 Relays
4. Headlight Dimmer Switch
5. Light Control Switch
6. Wire Harness
7. BulbBE-15
BE-32
BE-32
BE-32
BE-32
-
-
Headlight does not come on with light control switch in HEAD.1. Light Control Switch
2. Wire HarnessBE-32
-
Headlight does not go out with light control switch in OFF.1. Engine Room J/B Relay Circuit
2. Wire HarnessBE-15
-
Headlight flickers.1. Bulb
2. Wire Harness-
-
Headlight is dark.1. Bulb
2. Wire Harness-
-
Taillight does not come on with light control switch in TAIL.
1. Engine Room J/B Relay Circuit
2. Light Control Switch
3. Wire HarnessBE-15
BE-32
-
Taillight does not go out with light control switch in OFF.
1. Engine Room J/B Relay Circuit
2. Light Control Switch
3. Wire HarnessBE-15
BE-32
-
Headlight does not come on with engine running and light control
switch in OFF.
1. ECU-B1 Fuse
2. ECU-IG1 Fuse
3. Body ECU
4. Daytime Running Light No.3, 4 Relays
5. Generator L Terminal
6. Parking Brake Switch
7. Wire Harness-
-
BE-32
BE-32
CH-10
BE-63
-
FOG LIGHT SYSTEM:
SymptomSuspect AreaSee page
Fog light does not light up with light control SW HEAD
(Headlight is normal.)
1. FOG Fuse
2. Engine Room J/B Relay Circuit
3. Fog Light Switch
4. Wire Harness-
BE-15
BE-37
-
Fog light does not light up with light control SW HEAD
(Headlight does not light).1.*1 Other Parts
2. Wire Harness-
-
Only one light does not light up.1. Bulb
2. Wire Harness-
-
*1: Inspect Headlight System
TURN SIGNAL AND HAZARD WARNING SYSTEM:
SymptomSuspect AreaSee page
ºHazardº and ºTurnº do not light up.
1. ECU-IG2 Fuse
2. TURN HAZ Fuse
3. Ignitioin Switch
4. Turn Signal Flasher Relay
5. Wire Harness-
-
BE-29
BE-40
-
Hazard warning light does not light up.
(Turn is normal)1. Hazard Warning Switch
2. Wire HarnessBE-40
-
Turn signal does not light up.
(Hazard is normal)1. Turn Signal Switch
2. Wire HarnessBE-40
-
BE-6
- BODY ELECTRICALTROUBLESHOOTING
2379 Author: Date:
2004 LAND CRUISER (RM1071U) Rear washer motor does not operate.
1. Rear Washer Motor
2. Rear Washer Switch
3. Wire HarnessBE-52
BE-52
-
Washer fluid does not operate.1. Washer Hose and Nozzle-
*1: Inspect wiper arm and blade set positions.
COMBINATION METER (Meter Gauges and Illumination):
SymptomSuspect AreaSee page
Tachometer, fuel gauge and engine coolant temperature gauge do
not operate.1. GAUGE2 Fuse
2. Combination Meter
3. Wire Harness-
BE-58
-
Speedometer does not operate.
1. Speed Sensor
2. Combination Meter
3. Wire HarnessBE-63
BE-58
-
Tachometer does not operate.
1. Igniter
2. Combination Meter
3. Wire HarnessIG-1
BE-58
-
Fuel gauge does not operate or is in abnormal operation.
1. Fuel Receiver Gauge
2. Fuel Sender Gauge
3. Combination Meter
4. Wire HarnessBE-63
BE-63
BE-58
-
Oil pressure gauge does not operate.
1. Oil Pressure Receiver Gauge
2. Oil Pressure Sender Gauge
3. Combination Meter
4. Wire HarnessBE-63
BE-63
BE-58
-
Voltmeter does not operate.
1. Voltmeter
2. Combination Meter
3. Wire HarnessBE-63
BE-58
-
Engine coolant temperature gauge does not operate or is in ab-
normal operation
1. Engine Coolant Temperature Receiver Gauge
2. Engine Coolant Temperature Sender Gauge
3. Combination Meter
4. Wire HarnessBE-63
BE-63
BE-58
-
All illumination lights do not light up.1. Light Control Rheostat
2. Wire HarnessBE-63
-
Brightness does not change even when rheostat is turned.1. Bulb
2. Wire Harness-
-
Only one illumination light does not light up.1. Bulb
2. Wire Harness-
-
COMBINATION METER (Warning Light):
SymptomSuspect AreaSee page
Warning lights do not light up. (Except discharge, open door and
SRS)1. GAUGE1 Fuse
2. Combination Meter
3. Wire Harness-
BE-58
-
Fuel level warning light does not light up.
1. LED
2. Combination Meter
3. Fuel Sender Gauge
4. Wire Harness-
BE-58
BE-63
-
ABS warning light does not light up.
1. LED
2. ABS ECU
3. Wire Harness-
DI-502
-
- BODY ELECTRICALTROUBLESHOOTING
BE-7
2380 Author: Date:
2004 LAND CRUISER (RM1071U) Seat belt warning light does not light up.
1. LED
2. Seat Belt Buckle Switch
3. Wire Harness
4. Body ECU-
BE-63
BE-63
DI-1038
Discharge warning light does not light up.
1. METER Fuse
2. LED
3. Wire Harness
4. Generator-
-
-
CH-2
Brake warning light does not light up.
1. LED
2. Parking Brake Switch
3. Brake Fluid Level Warning Switch
4. LED Check Relay
5. Combination Meter
6. Wire Harness-
BE-63
BE-63
BE-63
BE-58
-
SRS warning light does not light up.
1. ECU-B2 Fuse
2. LED
3. Airbag Sensor Assembly
4. Combination Meter
5. Wire Harness-
-
DI-690
BE-58
-
Open door warning light does not light up.
1. DOME Fuse
2. LED
3. Door Courtesy Switch
4. Combination Meter
5. Wire Harness-
-
BE-44
BE-58
-
A/T oil temperature warning light does not light up.
1. LED
2. Combination Meter
3. Wire Harness
4. ECM-
BE-63
BE-58
DI-1
COMBINATION METER (Indicator Light):
SymptomSuspect AreaSee page
Cruise control indicator light does not light up.
1. LED
2. Combination Meter
3. Wire Harness
4. ECM-
BE-58
-
DI-1
High-beam indicator light does not light up.
1. LED
2. Combination Meter
3. Wire Harness
4. Headlight System-
BE-58
-
BE-30
Turn indicator light does not light up.
1. LED
2. Combination Meter
3. Wire Harness
4. Turn Signal and Hazard Warning System-
BE-58
-
BE-39
Shift indicator lights do not light up.
1. LED
2. Combination Meter
3. Park/Neutral Position Switch
4. Wire Harness-
BE-58
-
-
Only one shift indicator does not light up.1. LED
2. Combination Meter-
BE-58
Malfunction indicator light does not light up.
1. LED
2. Combination Meter
3. Wire Harness
4. ECM-
BE-58
-
DI-1
BE0H0-12
I24737
Turn Signal Light Engine Room R/B
HAZ-TEN Fuse
Ignition Switch
Combination Switch
Turn Signal SwitchHazard Warning Switch
Turn Signal Light Cowl Side J/B LH
GAUGE 1 Fuse Turn Signal Flasher Relay
Cowl Side J/B RH
GAUGE 2 Fuse
- BODY ELECTRICALTURN SIGNAL AND HAZARD WARNING SYSTEM
BE-39
2412 Author: Date:
2004 LAND CRUISER (RM1071U)
TURN SIGNAL AND HAZARD WARNING SYSTEM
LOCATION
- BRAKETROUBLESHOOTING
BR-3
2139 Author: Date:
2004 LAND CRUISER (RM1071U) Noise from brakes
1. Pad (Cracked or distorted)
2. Installation bolt (Loose)
3. Disc (Scored)
4. Pad support plate (Loose)
5. Sliding pin (Worn)
6. Pad (Dirty)
7. Pad (Glazed)
8. Tension or return spring (Faulty)
9. Anti-squeal shim (Damaged)
10.Shoe hold-down spring (Damaged)BR-15
BR-24
BR-18
BR-27
BR-21
BR-30
BR-24
BR-27
BR-15
BR-24
BR-15
BR-24
BR-33
BR-15
BR-24
BR-33
Noise from hydraulic brake booster
(Abnormal pump motor operation noise)Accumulator bracket clearance (Out of adjustment)BR-66
Brake warning light lights up*1
(Parking brake pedal released)
1. Brake fluid level
2. Hydraulic brake booster power supply system (Faulty)-
BR-40
Brake warning light lights up and brake warning buzzer sounds*2Hydraulic brake booster power supply system (Faulty)BR-40
ABS warning light lights up*31. Anti - lock brake system (Faulty)
2. Hydraulic brake booster power supply system (Faulty)-
BR-40
*1, *3: The light may stay on for about 60 seconds after the engine is started. It is normal if it goes out after
a while.
*
2, *3: Depressing the brake pedal repeatedly may turn on the warning light and buzzer. It is normal if the
light goes off and the buzzer stops sounding after a few seconds.
*
3: While ABS warning light is ON.
Z03473
Ammeter
Disconnect Wire
from Terminal B
Battery
VoltmeterB
Generator CH-4
- CHARGINGCHARGING SYSTEM
1839 Author: Date:
2004 LAND CRUISER (RM1071U)
8. CHECK CHARGE WARNING LIGHT CIRCUIT
(a) Warm up the engine and then turn it off.
(b) Switch off all accessories.
(c) Turn the ignition switch ON, and check that the charge
warning light is lit.
(d) Start the engine, and check that the light goes off.
If the light does not go off as specified, troubleshoot the charge
light circuit.
9. INSPECT CHARGING CIRCUIT WITHOUT LOAD
HINT:
If a battery/generator tester is available, connect the tester to
the charging circuit as per manufacturer's instructions.
(a) If a tester is not available, connect a voltmeter and amme-
ter to the charging circuit as follows:
Disconnect the wire from terminal B of the genera-
tor, and connect it to the negative (-) tester probe
of the ammeter.
Connect the positive (+) tester probe of the amme-
ter to terminal B of the generator.
Connect the positive (+) tester probe of the voltme-
ter to terminal B of the generator.
Ground the negative (-) tester probe of the voltme-
ter.
(b) Check the charging circuit as follows:
With the engine running from idling to 2,000 rpm, check
the reading on the ammeter and voltmeter.
Standard amperage:
10 A or less
Standard voltage:
13.2 - 14.8 V
If the value is not specified, check the generator.
10. INSPECT CHARGING CIRCUIT WITH LOAD
(a) With the engine running at 2,000 rpm, turn on the high
beam headlights and place the heater blower switch at HI.
(b) Check the reading on the ammeter.
Standard amperage:
30 A or more
If the ammeter reading is less than the standard amperage, re-
pair the generator.
HINT:
If the battery is fully charged, the indication will sometimes be
less than standard amperage.
11. REINSTALL ENGINE UNDER COVER NO.1
HANDLING PRECAUTIONS ON RELATED COMPONENTS
1. FOR VEHICLES EQUIPPED WITH SRS AIRBAG AND SEAT BELT PRETENSIONER
The TOYOTA LAND CRUISER is equipped with an SRS (Supplemental Restraint System), such as the driver
airbag and front passenger airbag and seat belt pretensioners. Failure to carry out service operations in the
correct sequence could cause the supplemental restraint system to unexpectedly deploy during servicing, pos-
sibly leading to a serious accident. Further, if a mistake is made in servicing the supplemental restraint system,
it is possible the SRS may fail to operate when required. Before servicing (including removal or installation of
parts, inspection or replacement), be sure to read the following items carefully, then follow the correct proce-
dure described in this manual.
Malfunction symptoms of the supplemental restraint system are difficult to confirm, so the diagnostic
trouble codes become the most important source of information when troubleshooting.
When troubleshooting the supplemental restraint system, always inspect the diagnostic trouble codes
before disconnecting the battery.
Work must be started after 90 seconds from the time the ignition switch is turned to the ºLOCKº position
and the negative (-) terminal cable is disconnected from the battery.
(The supplemental restraint system is equipped with a back-up power source so that if work is started
within 90 seconds of disconnecting the negative (-) terminal cable from the battery, the SRS may
deploy.)
When the negative (-) terminal cable is disconnected from the battery, memory of the clock and audio
systems will be cancelled. So before starting work, make a record of the contents memorized by the
audio memory system.
Then when work is finished, reset the clock and audio systems as before.
To avoid erasing the memory of each memory system, never use a back-up power supply from outside
the vehicle.
Even in cases of a minor collision where the SRS does not deploy, the passenger's airbag assembly,
the steering wheel pad and seat belt pretensioners should be inspected.
Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.
Before repairs, remove the airbag sensor if shocks are likely to be applied to the sensor during repairs.
Never disassemble and repair the airbag sensor assembly, steering wheel pad in order to reuse it.
If the airbag sensor assembly, steering wheel pad have been dropped, or if there are cracks, dents or
other defects in the case, bracket or connector, replace them with new ones.
Do not expose the airbag sensor assembly, steering wheel pad directly to hot air or flames.
Use a volt/ohmmeter with high impedance (10 k/V minimum) for troubleshooting of the electrical cir-
cuit.
Information labels are attached to the periphery of the SRS components. Follow the instructions on the
notices.
After work on the supplemental restraint system is completed, check the SRS warning light.
Before repairing the body, remove the SRS parts if, during repair, shocks are likely to be applied to the
sensors due to vibrations of the body or direct tapping with tools or other parts.
Do not expose the SRS parts directly to hot air or flames.
NOTICE:
1) The maximum ambient temperature tolerance is 120
°C (248°F) for the front airbag sensor, 105°C
(221
°F) for the center airbag sensor assembly and 93°C (200°F) for the steering wheel pad, and
front passenger airbag assembly. If it is possible that the ambient temperature may reach or ex-
ceed the temperature limit, remove the sensors and the steering wheel pad from the vehicle or
protect them with a hot insulation material before staring work.
2) Prior to welding, remove adjacent SRS parts form the vehicle or protect them with fire-proof cov-
ers.
If the vehicle is damaged, visually inspect for damage to the steering wheel pad using the inspection
procedures described in section RS of the repair manual for the relevant model year.
INTRODUCTIONIN-6