1996 TOYOTA LAND CRUISER Indicator

I00495
Cruise Control ECUD
2
Y Y
B
B 4
Instrument Panel Fuse Block B−O
IH1
1 3
6
B−O
GAUGE
9
2 4
Ignition Switch C17
B−Y FL AM1 AM1
EA2 2
1
B
B 6
Battery 2
1 W
2 2
B−L
A/T Indicator Light
(Park/Neutral Position Switch)
IH24
P1
P1
F11 F11 J4
JUNCTION
CONNECTOR
I12 I12 Fusible Link
F6 2
D
Fusible Link
Y
DI−322
−
DIAGNOSTICS CRUISE CONTROL SYSTEM
1996 LAND CRUISER (RM451U)
Park/Neutral Position Switch Circuit
CIRCUIT DESCRIPTION
When the shift position is put in except D position, a signal is sent from t\
he park/neutral position switch to
the ECU. When this signal is input during cruise control driving, the EC\
U cancels the cruise control.
WIRING DIAGRAM
DI5OL−02
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Input SignalIndicator Light
Blinking Pattern
Turn PNP switch
OFF (Shift to
except D position)
LightON
OFF SW ON
SW OFF
−
DIAGNOSTICS CRUISE CONTROL SYSTEM
DI−323
1996 LAND CRUISER (RM451U)
INSPECTION PROCEDURE
1 Check starter operation.
CHECK:
Check that the starter operates normally and that the engine starts.
NG Proceed to engine troubleshooting (See page DI−1).
OK
2 Input signal check.
PREPARATION:
See input signal check on page DI−286.
CHECK:
Check the indicator light when shifting into except D position.
OK:
The indicator light goes off when shifting into except
D position.
OK Proceed to next circuit inspection shown on problem symptoms table (See page DI−295 ).
NG
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I00498
Cruise Control ECU
C17
Battery Fusible
Link
F6 B−L W
B
B G−Y
F11 F11
GAUGE
Y
2
Y9
CRUISE MAIN Indicator (Combination Meter)C10
C10
2 2 2
2
22
43
EA2
6
Ignition Switch
I12 I12
4
Instrument Panel Fuse Block
1
AM1
AM1 J1
JUNCTION
CONNECTOR
PI
7
DI−332
−
DIAGNOSTICS CRUISE CONTROL SYSTEM
1996 LAND CRUISER (RM451U)
CRUISE MAIN Indicator Light Circuit
CIRCUIT DESCRIPTION
When the cruise control main switch is turned ON, CRUISE MAIN indicator ligh\
t lights up.
WIRING DIAGRAM
DI5OP−02
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−
ENGINE MECHANICAL TIMING CHAIN
EM−15
1996 LAND CRUISER (RM451U)
15. CHECK THRUST CLEARANCE OF OIL PUMP DRIVE
SHAFT GEAR
Using a dial indicator with lever type attachment, measure the
thrust clearance.
Standard thrust clearance:
0.040 − 0.160 mm (0.0016 − 0.0063 in.)
Maximum thrust clearance: 0.30 mm (0.0118 in.)
If the thrust clearance is greater than maximum, replace the oil
pump drive shaft gear and/or timing chain cover.
16. REMOVE DRIVE BELT IDLER PULLEY
Remove the bolt and idler pulley.
17. REMOVE TIMING CHAIN COVER
(a) Remove the 9 mounting bolts, 2 mounting nuts and drive belt adjusting bar.
(b) Remove the oil pump by prying the portions between the cylinder block and oil pump with a screwdriver.
NOTICE:
Be careful not to damage the contact surfaces of the cylin-
der block and oil pump.
(c) Remove the O−rings from the oil pump.
(d) Remove the gasket from the oil pump.
18. REMOVE TIMING CHAIN AND CAMSHAFT TIMING GEAR
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EM0281
P03976
P03977
−
ENGINE MECHANICAL CYLINDER HEAD
EM−45
1996 LAND CRUISER (RM451U)
(c) Using a spring tester, measure the tension of the valve
spring at the specified installed length.
Installed tension:
214 − 238 N (21.8 − 24.2 kgf, 48.1 − 53.4 lbf)
at 36.5 mm (1.437 in.)
If the installed tension is not as specified, replace the valve
spring.
9. INSPECT CAMSHAFTS
(a) Inspect for runout. (1) Place the camshaft on V−blocks.
(2) Using a dial indicator, measure the circle runout atthe center journal.
Maximum circle runout: 0.06 mm (0.0024 in.)
If the circle runout is greater than maximum, replace the cam-
shaft.
(b) Inspect the cam lobes. Using a micrometer, measure the cam lobe height.
Standard cam lobe height:
50.61 − 50.71 mm (1.9925 − 1.9965 in.)
Minimum cam lobe height: 50.51 mm (1.9886 in.)
If the cam lobe height is less than minimum, replace the cam-
shaft.
(c) Inspect the journals. Using a micrometer, measure the journal diameter.
Journal diameter:
26.959 − 26.975 mm (1.0614 − 1.0620 in.)
If the journal diameter is not as specified, check the oil clear-
ance.
(d) Inspect the camshaft bearings. Check that bearings for flaking and scoring.
If the bearings are damaged, replace the bearing caps and cyl-
inder head as a set.
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EM3322
EM−46
−
ENGINE MECHANICAL CYLINDER HEAD
1996 LAND CRUISER (RM451U)
(e) Inspect the gear spring
Using vernier calipers, measure the free distance be-
tween the spring ends.
Free distance: 18.2 − 18.8 mm (0.717 − 0.740 in.)
If the free distance is not as specified, replace the gear spring.
(f) Inspect the journal oil clearance. (1) Clean the bearing caps and camshaft journals.
(2) Place the camshafts on the cylinder head.
(3) Lay a strip of Plastigage across each of the cam-
shaft journals.
(4) Install the bearing caps (See page EM−54).
NOTICE:
Do not turn the camshaft. (5) Remove the bearing caps.
(6) Measure the Plastigage at its widest point.
Standard oil clearance:
0.025 − 0.062 mm (0.0010 − 0.0024 in.)
Maximum oil clearance: 0.10 mm (0.0039 in.)
If the oil clearance is greater than maximum, replace the cam-
shaft. If necessary, replace the bearing caps and cylinder head
as a set. (7) Completely remove the Plastigage.
(g) Inspect the thrust clearance. (1) Install the camshaft (See page EM−54 ).
(2) Using a dial indicator, measure the thrust clearance
while moving the camshaft back and forth.
Standard thrust clearance:
0.030 − 0.080 mm (0.0012 − 0.0031 in.)
Maximum thrust clearance: 0.10 mm (0.0039 in.)
If the thrust clearance is greater than maximum, replace the
camshaft. If necessary, replace the bearing caps and cylinder
head as a set.
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EM2196
−
ENGINE MECHANICAL CYLINDER HEAD
EM−47
1996 LAND CRUISER (RM451U)
(h) Inspect the gear backlash.
(1) Install the camshafts without installing the exhaustcam sub−gear (See page EM−54).
(2) Using a dial indicator, measure the backlash.
Standard backlash:
0.020 − 0.200 mm (0.0008 − 0.0079 in.)
Maximum backlash: 0.30 mm (0.0188 in.)
If the backlash is greater than maximum, replace the cam-
shafts.
10. INSPECT VALVE LIFTER OIL CLEARANCE
(a) Using a caliper gauge, measure the lifter bore diameter of the cylinder head.
Lifter bore diameter:
34.000 − 34.021 mm (1.3386 − 1.3394 in.)
(b) Using a micrometer, measure the lifter diameter. Lifter diameter:
33.966 − 33.976 mm (1.3372 − 1.3376 in.)
(c) Subtract the lifter diameter measurement from the lifter bore diameter measurement.
Standard oil clearance:
0.024 − 0.055 mm (0.0009 − 0.0022 in.)
Maximum oil clearance: 0.07 mm (0.0028 in.)
If the oil clearance is greater than maximum, replace the lifter.
If necessary, replace the cylinder head.
11. INSPECT AIR INTAKE CHAMBER
Using a precision straight edge and thickness gauge, measure
the surface contacting the intake manifold for warpage. Maximum warpage: 0.30 mm (0.0118 in.)
If warpage is greater than maximum, replace the air intake
chamber.
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EM−84
−
ENGINE MECHANICAL CYLINDER BLOCK
1996 LAND CRUISER (RM451U)
9. REMOVE RH ENGINE MOUNTING BRACKET
(a) Remove the nut and insulator.
(b) Remove the 4 bolts and bracket.
10. REMOVE LH ENGINE MOUNTING BRACKET
(a) Remove the nut and insulator.
(b) Remove the 4 bolts and bracket.
11. REMOVE OIL COOLER COVER AND OIL COOLER
Remove the 10 bolts, 2 nuts, oil cooler cover with the oil cooler
and gasket.
12. REMOVE REAR OIL SEAL RETAINER
Remove the 4 bolts and retainer.
13. CHECK CONNECTING ROD THRUST CLEARANCE
Using a dial indicator, measure the thrust clearance while mov-
ing the connecting rod back and forth.
Standard thrust clearance:
0.160 − 0.262 mm (0.0063 − 0.0103 in.)
Maximum thrust clearance: 0.362 mm (0.0143 in.)
If the thrust clearance is greater than maximum, replace the
connecting rod assembly. If necessary , replace the crankshaft.
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