wheel TOYOTA LAND CRUISER 1986 Factory Service Manual

Wheel Base2,850 (112.20)
Imaginary
Standard
Line
mm (in.)
(Two-Dimensional Distance)
Hole dia.
14.5 (0.571)
30 (1.18)
14.5 (0.571)
14.5 (0.571)
70 (2.76) Name
Lower control link installation hole
Body mounting hole
Upper control link installation hole
Lateral control rod installation hole
Body mounting hole Symbol
G, g
H, h
I, i
J
K, k Hole dia.
24 (0.94)
20 (0.79)
29.5 (1.161)
48 (1.89)
60 (2.36)
30 (1.18) Name
Body mounting hole
Suspension lower arm installation hole
Shock absorber installation hole
Suspension lower arm installation hole
Body mounting hole
Body mounting hole Symbol
A, a
B, b
C, c
D, d
E, e
F, f
FRAME DIMENSION
UZJ100 series
w HDJ100,101 series w FZJ100
series (Cont'd)
BODY DIMENSIONSDI-9

GENERAL INFORMATION
Anti-rust treatment is necessary before welding and before and after the painting process.
ANTI-RUST TREATMENT BEFORE WELDING
1. WELD-THROUGH PRIMER (SPOT SEALER) APPLICATION
Weld-Through Primer
(Spot Sealer)For anti-corrosion measures, always apply the
weld-through primer (spot sealer) to welding sur-
faces where the paint film has been removed.
HINT: Apply the weld-through primer (spot sealer)
so that it does not ooze out from the joining sur-
faces.
WELD-THROUGH PRIMER (SPOT SEALER)
APPLICATION
ANTI-RUST TREATMENT BEFORE PAINTING PROCESS
1. BODY SEALER APPLICATION
For water-proofing and anti-corrosion measures, al-
ways apply the body sealer to the body panel seams
and hems of the doors, hoods, etc.
Sealer Gun
BODY SEALER APPLICATION
2. UNDERCOAT APPLICATION
To prevent corrosion and protect the body from
damage by flying stones, always apply sufficient
undercoat to the bottom surface of the under body
and inside of the wheel housings.
UNDERCOAT APPLICATION ANTI-RUST TREATMENT
AR-2

Under coat (ED Primer) Second Coat
ANTI-RUST TREATMENT AFTER PAINTING PROCESS
1. ANTI-RUST AGENT (WAX) APPLICATION
To preserve impossible to paint areas from corrosion,
always apply sufficient anti-rust agent (wax) to the
inside of the hemming areas of the doors and hoods,
and around the hinges, or the welded surfaces inside
the boxed cross-section structure of the side mem-
ber, body pillar, etc.
ANTI-RUST AGENT (WAX) APPLICATION
REFERENCE: ANTI-RUST TREATMENT BY PAINTING
Painting prevents corrosion and protects the sheet metal from damage. In this section, anti-chipping paint
only for anti-corrosion purpose is described.
1. ANTI-CHIPPING PAINT
To prevent corrosion and protect the body from damage by flying stones, etc., apply anti-chipping
paint to the rocker panel, wheel arch areas, valance panel, etc.
HINT:
Depending on the model or the application area, there are cases where the application of anti-chip-
ping paint is necessary before the second coat or after the top coat.

Apply the anti-chipping paint
before the second coat.
Apply the anti-chipping paint
after the top coat.
Anti-Chipping PaintTop Coat
To Coat
Anti-Chipping Paint
Second Coat
Under coat (ED Primer)
Steel Metal
Steel Metal
ANTI-RUST TREATMENTAR-3

DI-528- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
721 Author
: Date
:
2004 LAND CRUISER (RM1071U)
DTCC0226 / 21 - C0256 / 24ABS Solenoid Circuit
CIRCUIT DESCRIPTION
This solenoid goes on when signals are received from the ECU and controls the pressure acting on the wheel
cylinders thus controlling the braking force.
DTC No.DTC Detecting ConditionTrouble Area
C0226 / 21Open or short in SFRH or SFRR circuit continues for 0.015
sec. or more.
Hydraulic brake booster

SFRH or SFRR circuit
C0236 / 22Open or short in SFLH or SFLR circuit continues for 0.015
sec. or more.
Hydraulic brake booster

SFLH or SFLR circuit
C0246 / 23Open or short in SRRH or SRRR circuit continues for 0.015
sec. or more.
Hydraulic brake booster

SRRH or SRRR circuit
C0256 / 24Open or short in SRLH or SRLR circuit continues for 0.015
sec. or more.
Hydraulic brake booster

SRLH or SRLR circuit
DIC95-01

DI-546- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
739 Author
: Date
:
2004 LAND CRUISER (RM1071U)
DTCC1231 / 31, C1335 / 35Steering Angle Sensor Circuit
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1231 / 31
Detection of any of the conditions 1. through 3.:
1. When the condition that ECU terminal IG1 voltage is 9.5
V or more, and does not receive data from steering
angle sensor continues for 1 sec. or more.
2. When the steering angle sensor value changes by 360°
or more with SSC signal from steering angle sensor
remaining ON or OFF.
3. When the condition that difference between the steering
angle value at edge occurring in SSC signal and the
value at edge occurring in SSC signal after turning the
steering wheel one-turn is out of the range from 355.5°
- 364.5° occurs 10 times or more.

Steering angle sensor

Steering angle sensor circuit
C1335 / 35
When the ECU IG1 terminal voltage is 9.5 V or more, data
transmission from the steering angle sensor is impossible
for 1 sec. or more.
Steering angle sensor

Steering angle sensor circuit
DIC9J-02

F17609
ESS (-)
IG (+)
BAT (+)
DI-548- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
741 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1 in case of using the hand-held tester and start from step 2 in case of not
using the hand-held tester.
1 Check output value of the steering angle sensor.
PREPARATION:
(a) Connect the hand-held tester to the DLC3.
(b) Turn the ignition switch ON and push the hand-held tester main switch ON.
(c) Select the DATALIST mode on the hand-held tester.
CHECK:
Check that the steering wheel turning angle value of the steering angle position sensor displayed on the
hand-held tester is changing when turning the steering wheel.
HINT:
After certifying ºZeroº point calibration of the steering angle sensor (Speed: 21 mph (35 km/h), driving straight
ahead for 10 sec. or more), the value will change.
OK:
Steering wheel turning angle value must be changing.
OK Go to step 5.
NG
2 Check input voltage of the steering angle sensor.
PREPARATION:
Remove the column lower cover.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure voltage between terminals 1 and 2, 2 and 9 of
the combination switch wire harness side connector.
OK:
Voltage: 10 to 14 V
NG Check and replace harness and connector.
OK

F03003
1 2
6 3 (+)(-)
(+)
(-)
(Oscilloscope) LOCK
F04441
(Reference)
3 ms
2,288 ms
104 ms 5 V
0 V
5 V
0 V 
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-549
742 Author
: Date
:
2004 LAND CRUISER (RM1071U)
3 Check steering angle sensor.
PREPARATION:
(a) Remove the steering wheel lower No. 2 and No. 3 covers,
steering wheel pad, steering wheel column upper and
lower covers (See page SR-29).
(b) Disconnect the combination switch connector (for steer-
ing angle sensor).
(c) Connect the oscilloscope to terminals 3 and 6 of the com-
bination switch connector (for steering angle sensor).
(d) Apply battery positive voltage between terminals 1 and 2.
CHECK:
Turn the steering wheel slowly and check the signal waveform.
OK:
HINT:
The above signal waveform does not repeat ON and OFF regu-
larly and this combination changes case by case according to
the data.
NG Replace steering angle sensor.
OK
4 Check that slits of the steering sensor disc are clogged up.
NG Repair or replace steering sensor disc.
OK

- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-557
750 Author
: Date
:
2004 LAND CRUISER (RM1071U)
DTC C1237 / 37 Tires of Different Size
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1237 / 37
Driving at more than 19 mph (30 km/h) for more than 20
seconds with 1 or 2 tires of different size 3 times continu-
ously.
Tire size

Skid control ECU
INSPECTION PROCEDURE
1 Check tire size.
CHECK:
Check the size and condition of all 4 wheels.
NG Replace tires so that all 4 tires are of the same
size.
OK
Check and replace skid control ECU.
DIC9M-01

F04506
LOCKON
PH
PHG
F06043
LOCK
PH
PHG
DI-598- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
791 Author
: Date
:
2004 LAND CRUISER (RM1071U)
3 Check pressure switch (PH) operation.
PREPARATION:
(a) Turn the ignition switch OFF, and depress the brake pedal
40 times or more.
HINT:
When pressure in the power supply system is released, reac-
tion force becomes light and stroke becomes longer.
(b) Install the LSPV gauge (SST) to the rear brake caliper
and bleed air.
SST 09709-29018
CHECK:
While checking the voltage between terminals PH and PHG of
the hydraulic brake booster, depress the brake pedal with a
force of more than 294 N (30 kgf, 66 lbf) and turn the ignition
switch ON, then check the rear wheel cylinder pressure when
voltage changes from 6 V to 0 V.
OK:
12,553 to 20,104 kpa (128 to 205 kgf´cm2, 1,820 to
2,916 psi)
PREPARATION:
Turn the ignition switch OFF and disconnect the connector (5P)
from the hydraulic brake booster.
CHECK:
While checking the resistance between terminals PH and PHG,
depress the brake pedal changing the force in a range of 197
N (20 kgf, 44 lbf) to 294 N (30 kgf, 66 lbf) and check the rear
wheel cylinder pressure when resistance changes from 0 kW to
1 kW between PH and PHG.
OK:
11,964 to 18,240 kpa (122 to 186 kgf´cm2, 1,735 to
2,645 psi)
HINT:
After inspection, connect the connector, fill brake reservoir with
brake fluid and clear the DTC (See page DI-505).
OK Go to step 5.
NG

F06042
LOCKON
PLG
PL
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-599
792 Author
: Date
:
2004 LAND CRUISER (RM1071U)
4 Check for open circuit in harness and connector between pressure switch (PH)
and skid control ECU (See page IN-36).
NG Repair or replace harness or connector.
OK
Replace hydraulic brake booster assembly.
5 Check pressure switch (PL) operation.
PREPARATION:
(a) Turn the motor switch OFF, and depress the brake pedal
40 times or more.
HINT:
When pressure in the power supply system is released, reac-
tion force becomes light and stroke becomes longer.
(b) Install the LSPV gauge (SST) to the rear brake caliper
and bleed air.
SST 09709 -29018
(c) Disconnect the connector (8P) from the hydraulic brake
booster.
CHECK:
While checking the resistance between terminals PL and PLG
of the hydraulic brake booster, depress the brake pedal with a
force of more than 294 N (30 kgf, 66 lbf) and turn the ignition
switch ON, then check the rear wheel cylinder pressure when
the resistance changes from 5.7 kW to 1.0 kW.
OK:
9,022 to 15,102 kpa (92 to 154 kgf´cm2, 1,308 to 2,190
psi)
PREPARATION:
Turn the ignition switch OFF and disconnect the connector (8P)
from the hydraulic brake booster.
CHECK:
While checking the resistance between terminals PL and PLG
of the hydraulic brake booster, depress the brake pedal chang-
ing the force in a range of 197 N (20 kgf, 44 lbf) to 294 N (30 kgf,
66 lbf) and check the rear wheel cylinder pressure when resis-
tance changes from 1.0 kW to 5.7 kW.
OK:
8,532 to 13,337 kpa (87 to 136 kgf´cm2, 1,237 to 1,934
psi)