ad blue TOYOTA LAND CRUISER 1996 J80 Workshop Manual

V08423
Knock Sensor 1
GR ECM
KNK E1
12
E6
WIRING DIAGRAM
Wiring Diagram
This shows a wiring diagram of the circuit.
Use this diagram together with ELECTRICAL
WIRING DIAGRAM to thoroughly understand the
circuit.
Wire colors are indicated by an alphabetical code.
B = Black, L = Blue, R = Red, BR = Brown,
LG = Light Green, V = Violet, G = Green,
O = Orange, W = White, GR = Gray, P = Pink,
Y = Yellow, SB = Sky Blue
The first letter indicates the basic wire color and
the second letter indicates the color of the stripe.
DTC P0325Knock Sensor 1 Circuit Malfunction
CIRCUIT DESCRIPTION
Knock sensor is fitted to the cylinder block to detect engine knocking. This sensor c\
ontains a piezoelectric element which
generates a voltage when it becomes deformed, which occurs when the cyli\
nder block vibrates due to knocking. If engine
knocking occurs, ignition timing is retarded to suppress it.
DTC No. DTC Detection Condition Trouble Area
P0325 No knock sensor 1 signal to ECM with engine speed,
1,200 rpm or more.  Open or short in knock sensor1 circuit
 Knock sensor 1 (looseness)
 ECM
If the ECM detects the above diagnosis conditions, it operates the fall sa\
fe function in which the corrective retard angle
value is set to the maximum value.
 Diagnostic Trouble Code No. and Detection Item
 Circuit Description
The major role and operation, etc. of the circuit
and its component parts are explained.
 Indicates the diagnostic trouble code, diagnostic
trouble code set parameter and suspect area of
the problem.

IN−26
−
INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
1996 LAND CRUISER (RM451U)
6. CIRCUIT INSPECTION
How to read and use each page is shown below.
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CH0EO−02
CH0712
BlueRed
White
Charging
Necessary
OK
Add Distilled
Water
CH−2
−
CHARGING CHARGING SYSTEM
1996 LAND CRUISER (RM451U)
CHARGING SYSTEM
ON−VEHICLE INSPECTION
1. CHECK BATTERY ELECTROLYTE LEVEL AND VOLT-
AGE
(a) Check the electrolyte quantity of each cell.
If under the lower level, replace the battery (or add distilled wa-
ter if possible). check the charging system.
(b) Measure the battery voltage between the negative ( −)
and positive (+) terminals of the battery.
Standard voltage: At 20° C (68°F): 12.7 − 12.9 V
HINT:
Before measuring the voltage, turn the ignition switch
OFF and turn off the electrical systems (headlight, blower
motor, rear defogger etc.).
If the vehicle has been running, wait 20 minutes or more
after the vehicle stops before measuring the battery volt-
age.
If the voltage is less than specification, charge the battery.
HINT:
Check the indicator as shown in the illustration.
2. CHECK BATTERY TERMINALS, FUSIBLE LINK AND FUSES
(a) Check that the battery terminals are not loose or cor-
roded.
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P03849
Overall Length
EM0255
P04415
−
ENGINE MECHANICAL CYLINDER HEAD
EM−43
1996 LAND CRUISER (RM451U)
(d) Check the valve overall length.
Standard overall length:
Intake98.4 mm (3.874 in.)
Exhaust97.4 mm (3.854 in.)
Minimum overall length:
Intake97.9 mm (3.854 in.)
Exhaust97.4 mm (3.835 in.)
If the overall length is less than minimum, replace the valve.
(e) Check the surface of the valve stem tip for wear.
If the valve stem tip is worn, resurface the tip with a grinder or
replace the valve.
NOTICE:
Do not grind off more than minimum.
7. INSPECT AND CLEAN VALVE SEATS
(a) Using a 45° carbide cutter, resurface the valve seats.
Remove only enough metal to clean the seats.
(b) Check the valve seating position. Apply a light coat of prussian blue (or white lead) to the
valve face. Lightly press the valve against the seat. Do not
rotate valve.
(c) Check the valve face and seat for the following:
If blue appears 360 ° around the face, the valve is
concentric. If not, replace the valve.
If blue appears 360 ° around the valve seat, the
guide and face are concentric. If not, resurface the
seat.
Check that the seat contact is in the middle of the
valve face with these width:
Intake1.2 − 1.6 mm (0.047 − 0.063 in.)
Exhaust1.0 − 1.4 mm (0.039 − 0.055 in.)
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PP3KJ−01
−
PREPARATION AIR CONDITIONING
PP−71
120
Author: Date:
1996 LAND CRUISER (RM451U)
AIR CONDITIONING
SST (Special Service Tools)
07110−58060Air Conditioner Service Tool Set
(07117−58060)Refrigerant Drain Service Valve
(07117−58070)T−Joint
(07117−58080)Quick Disconnect AdapterDischarge (Diam.: 16 mm)
(07117−58090)Quick Disconnect AdapterSuction (Diam.: 13 mm)
(07117−78050)Refrigerant Charging Gauge
(07117−88060)Refrigerant Charging HoseDischarge (Color: Red)
(07117−88070)Refrigerant Charging HoseSuction (Color: Blue)
(07117−88080)Refrigerant Charging HoseUtility (Color: Green)
07112−66040Magnetic Clutch Remover
07112−76060Magnetic Clutch Stopper
07114−84010Snap Ring Pliers
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PR0069
PR0031
PR−8
−
PROPELLER SHAFT SPIDER BEARING
856
Author: Date:
1996 LAND CRUISER (RM451U)
7. INSTALL SNAP RINGS
(a) Install 2 new snap rings of equal thickness which will allow
0 − 0.05 mm (0 − 0.0020 in.) axial play.
HINT:
Do not reuse the snap rings. Thickness of snap ring:
Front Propeller Shaft and Rear Propeller Shaft (Type
B)
ColorMarkThickness mm (in.)
−12.100 − 2.150
(0.0827 − 0.0846)
−22.150 − 2.200
(0.0846 − 0.0866)
−32.200 − 2.250
(0.0866 − 0.0886)
Brown−2.250 − 2.300
(0.0886 − 0.0906)
Blue−2.300 − 2.350
(0.0906 − 0.0925)
−62.350 − 2.400
(0.0925 − 0.0945)
−72.400 − 2.450
(0.0945 − 0.0965)
−82.450 − 2.500
(0.0965 − 0.0984)
Rear Propeller Shaft (Type A)
ColorThickness mm (in.)
−2.00 (0.0787)
Brown2.03 (0.0799)
Blue2.06 (0.0811)
−2.09 (0.0823)
(b) Using a hammer, tap the yoke until there is no clearance
between the bearing outer race and snap ring.
8. CHECK SPIDER BEARING (See page PR−4 )
Check that the spider bearing moves smoothly.
Check the spider bearing axial play.
Bearing axial play: Maximum 0.05 mm (0.0020 in.)
HINT:
Install a new spider bearing on the flange side in the pro-
cedure described above.
When replacing the spider bearing, be sure that the
grease fitting assembly hole is facing in the direction
shown in the illustration.
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SS1EA−02
SS−28
−
SERVICE SPECIFICATIONS PROPELLER SHAFT
151
Author: Date:
1996 LAND CRUISER (RM451U)
PROPELLER SHAFT
SERVICE DATA
Propeller shaft runout Max.0.8 mm (0.031 in.)
Spider bearing axial playLess than 0.05 mm (0.0020 in.)
Snap ring thickness
Font propeller shaft and rear propeller shaft (Type B) Mark Color
1 −
2 −
3 −
− Brown
− Blue
6 −
7 −
8 −
Rear propeller shaft (Type A) Color
−
Brown Blue−
2.100 − 2.150 mm (0.0827 − 0.0846 in.)
2.150 − 2.200 mm (0.0846 − 0.0866 in.)
2.200 − 2.250 mm (0.0866 − 0.0886 in.)
2.250 − 2.300 mm (0.0886 − 0.0906 in.)
2.300 − 2.350 mm (0.0906 − 0.0925 in.)
2.350 − 2.400 mm (0.0925 − 0.0945 in.)
2.400 − 2.450 mm (0.0945 − 0.0965 in.)
2.450 − 2.500 mm (0.0965 − 0.0984 in.)
2.00 mm (0.0787 in.)
2.03 mm (0.0799 in.)
2.06 mm (0.0811 in.)
2.09 mm (0.0823 in.)
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