1996 TOYOTA LAND CRUISER brake system

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BODY ELECTRICAL BODY ELECTRICAL SYSTEM
BE−5
1996 LAND CRUISER (RM451U)
Fuel gauge does not operate or abnormal operation.
1. Fuel Receiver Gauge
2. Fuel Sender Gauge
3. Meter Circuit
4. Wire HarnessBE−34
BE−34
BE−32
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Engine coolant temperature gauge does not operation or
abnormal operate.
1. Engine Coolant Temperature Receiver Gauge
2. Engine Coolant Temperature Sender Gauge
3. Meter Circuit
4. Wire HarnessBE−34
BE−34
BE−32−
Oil pressure gauge does not operate or abnormal operation.
1. Oil Pressure Receiver Gauge
2. Oil Pressure Sender Gauge
3. Meter Circuit
4. Wire HarnessBE−34
BE−34
BE−34−
All illumination lights do not light up.
1. TAIL Fuse (I/P F/B)
2. Light Control Rheostat
3. Wire Harness−
BE−34 −
Brightness does not change even when rheostat turned.1. Bulb
2. Wire Harness−
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Only one illumination light does not light up.1. Bulb
2. Wire Harness−
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WARNING LIGHTS:
COMBINATION METER
SymptomSuspect AreaSee page
Warning lights do not lights up.
(Except discharge, SRS and door open)1. GAUGE Fuse (I/P F/B)
2. Meter Circuit
3. Wire Harness−
BE−32 −
Brake warning light does not light up.
1. Bulb
2. Brake Fluid Level Switch
3. Parking Brake Switch
4. Meter Circuit
5. Wire Harness−
BE−34
BE−34
BE−32 −
Open door warning light does not light up.
1. Bulb
2. Door Courtesy Switch
3. DOME Fuse (No.2 R/B)
4. Meter Circuit
5. Wire Harness−
BE−21
BE−21 −
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−
SRS warning light does not light up
1. Bulb
2. Airbag Sensor Assembly
3. ECU− B Fuse (I/P F/B)
4. Meter Circuit
5. Wire Harness−
−
−
BE−32 −
Discharge warning light does not light up.
1. Bulb
2. IGN Fuse (No.1 J/B)
3. Generator
4. Meter Circuit
5. Wire Harness−
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−
BE−32 −
Seat belt warning light does not light up.
1. Bulb
2. Seat Belt Buckle Switch
3. Seat Belt Warning Relay (I/P F/B)
4. Meter Circuit
5. Wire Harness−
BE−34 −
BE−32 −
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BR1CC−01
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BRAKE BRAKE SYSTEM
BR−1
983
Author: Date:
1996 LAND CRUISER (RM451U)
BRAKE SYSTEM
GENERAL DESCRIPTION
Care must be taken to replace each part properly as it could affect the perfo\
rmance of the brake
system and result in a driving hazard. Replace the parts with parts of the same part number or
equivalent.
It is very important to keep parts and the area clean when repairing the\
brake system.
If the vehicle is equipped with a mobile communication system, refer to the precaution in the
IN section.
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BR1CD−01
BR−2
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BRAKE TROUBLESHOOTING
984
Author: Date:
1996 LAND CRUISER (RM451U)
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
Use the table below to help you find the cause of the problem. The numbers \
indicate the priority of the likely
cause of the problem. Check each part in order. If necessary, replace these parts.
SymptomSuspect AreaSee page
Low pedal or spongy pedal
4. Fluid leaks for brake system
5. Air in brake system
6. Piston seals: worn or damaged
7. Master cylinder: faulty
8. Booster push rod: out of adjustment−
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BR−33
BR−33 BR−9
BR−20
Brake drag
1. Brake pedal freeplay: minimal
2. Parking brake lever travel: out of adjustment
3. Parking brake wire: sticking
4. Pad: cracked or distorted
5. Piston: stuck
6. Piston: frozen
7. Tension or return spring: faulty
8. Booster push rod: out of adjustment
9. . Vacuum leaks for booster system
10.. Master cylinder: faultyBR−6
BR−8 −
BR−21
BR−30
BR−33
BR−33
BR−33
BR−33
BR−39
BR−20
BR−18 BR−9
Brake pull
1. Piston: stuck
2. Pad: oily
3. Piston: frozen
4. Disc: Scored
5. Pad: cracked or distortedBR−33
BR−33
BR−21
BR−30
BR−33
BR−33
BR−33
BR−33
BR−21
BR−30
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BRAKE TROUBLESHOOTING
BR−3
985
Author: Date:
1996 LAND CRUISER (RM451U)
Hard pedal but brake inef
ficient
1. Fluid leaks for brake system
2. Air in brake system
3. Pad: worn
4. Pad: cracked or distorted
5. Pad: oily
6. Pad: glazed
7. Disc: scored
8. Booster push rod: out of adjustment
9. Vacuum leaks for booster system−
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BR−21
BR−30
BR−21
BR−30
BR−21
BR−30
BR−21
BR−30
BR−21
BR−30
BR−20
BR−18
Noise from brake
1. Pad: cracked or distorted
2. Installation bolt: loosen
3. Disc: scored
4. Pad support plate: loosen
5. Sliding pin: worn
6. Pad: dirty
7. Pad: glazed
8. Tension or return spring: faulty
9. Anti− squeal shim: damaged
10.. Hold− down spring: damagedBR−21
BR−30
BR−33
BR−33
BR−33
BR−33
BR−30
BR−33
BR−21
BR−30
BR−21
BR−30
BR−39
BR−21
BR−30
BR−39
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BR1CE−01
R13494
R00252
BR−4
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BRAKE BRAKE FLUID
986
Author: Date:
1996 LAND CRUISER (RM451U)
BRAKE FLUID
BLEEDING
HINT:
If any work is done on the brake system or if air is suspected in
the brake lines, bleed the system of air.
NOTICE:
Do not let brake fluid remain on a painted surface. Wash it
off immediately.
1. FILL BRAKE RESERVOIR WITH BRAKE FLUID
Check the fluid level in the reservoir after bleeding each wheel.
Add fluid, if necessary. Fluid: SAE J1703 or FMVSS No.116 DOT3
2. BLEED MASTER CYLINDER
HINT:
If the master cylinder has been disassembled or if the reservoir
becomes empty, bleed the air from the master cylinder.
(a) Disconnect the brake lines from the master cylinder.
(b) Slowly depress the brake pedal and hold it.
(c) Block off the outlet plugs with your fingers, and release the brake pedal.
(d) Repeat (b) and (c) 3 or 4 times.
3. CONNECT VINYL TUBE TO BRA KE CALIPER BLEED-
ER PLUG
Insert other end of the tube in a half −full container of brake fluid.
NOTICE:
Begin bleeding air from the brake caliper with the longest
hydraulic line.
4. BLEED BRAKE LINE
(a) Slowly depress the brake pedal several times.
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BR3297
Pedal Reserve Distancea
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BRAKE BRAKE PEDAL
BR−7
989
Author: Date:
1996 LAND CRUISER (RM451U)
If incorrect, check the stop light switch clearance.
If the clearance is OK, then troubleshoot the brake system.
4. CHECK PEDAL RESERVE DISTANCE
Release the parking brake.
With the engine running, depress the pedal and measure
the pedal reserve distance, as shown.
Pedal reserve distance, ’a’, at 490 N (50 kgf, 110.2lbf):
More than 68 mm (2.68 in.)
If the reserve distance incorrect, troubleshoot the brake sys-
tem.
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BR1CQ−01
BR3976
SST
Gasket
R11347
SST
BR−20
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BRAKE BRAKE BOOSTER ASSEMBLY
1996 LAND CRUISER (RM451U)
INSTALLATION
1. INSTALL BRAKE BOOSTER
(a) Install the booster and a new gasket.
(b) Install the clevis to the operating rod.
(c) Install and torque the booster installation nuts. Torque: 13 N·m (130 kgf·cm, 9 ft·lbf)
(d) Install the clevis pin into the clevis and brake pedal, and
install the clip to the clevis pin.
(e) Install the pedal return spring.
2. ADJUST LENGTH OF BOOSTER PUSH ROD
(a) Install a new gasket on the master cylinder.
(b) Set the SST on the gasket, and lower the pin until its tip slightly touches the piston.
SST 09737−00010
(c) Turn the SST upside down, and set it on the booster. SST 09737−00010
(d) Measure the clearance between the booster push rod and pin head (SST).
Clearance: 0 mm (0 in.)
(e) Adjust the booster push rod length until the push rod light-
ly touches the pin head.
3. INSTALL MASTER CYLINDER (See page BR−9 )
4. CONNECT VACUUM HOSE TO BRAKE BOOSTER
5. FILL BRAKE RESERVOIR WITH BRAKE FLUID AND
BLEED BRAKE SYSTEM (See page BR−4 )
6. CHECK FOR FLUID LEAKAGE
7. CHECK AND ADJUST BRAKE PEDAL (See page BR−6 )
8. DO OPERATIONAL CHECK (See page BR−17 )
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BR1CY−01
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BRAKE FRONT BRAKE CALIPER
BR−29
1996 LAND CRUISER (RM451U)
INSTALLATION
Installation is in the reverse order of removal (See page BR−25 ).
HINT:
After installation, fill the brake reservoir with brake fluid, bleed bra\
ke system (see page BR−4) and check
for leaks.
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