lights TOYOTA LAND CRUISER 1996 J80 Workshop Manual

B02389B02390
HEAT METHOD: When the problem seems to occur when the suspect area is heated.
2
NOTICE: 3 WATER SPRINKLING METHOD:
(1)
(2)
4 OTHER: When a malfunction seems to occur when electrical load is excessive. When the malfunction seems to occur on a rainy day or in a
high
−humidity condition.
Heat the component that is the likely cause of the malfunction
with a hair dryer or similar object. Check to see if the
malfunction
occurs.
Sprinkle water onto the vehicle and check to see if the malfunc-
tion occurs.
Turn on all electrical loads including the heater blower, head
lights, rear window defogger, etc. and check to see if the mal-
function occurs. ON
HINT:
If a vehicle is subject to water leakage, the leaked water may
contaminate
the ECU. When testing a vehicle with a water leak-
age problem, special caution must be taken.
Malfunc-
tion
Do not heat to more than 60 °C (140° F). (Temperature
is limited not to damage the components.)
Do not apply heat directly to parts in the ECU.
(1)
(2)
Never sprinkle water directly into the engine compart-
ment, but indirectly change the temperature and hu-
midity by applying water spray onto the radiator front
surface.
Never apply water directly onto the electronic compo-
nents.
NOTICE:
−
INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMSIN−23
1996 LAND CRUISER (RM451U)
FI2334
FI6649
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AC2SM−01
AC2717
Connector ”A”
−
AIR CONDITIONING AIR CONDITIONING CONTROL ASSEMBLY
AC−69
1996 LAND CRUISER (RM451U)
INSPECTION
1. INSPECT ILLUMINATION OPERATION
Connect the positive (+) lead from the battery to terminal A −13
and the negative ( −) lead to terminal A−3, then check that the
illuminations light up.
If illuminations do not light up, test the bulb.
2. Air Inlet Control Switch:
INSPECT INDICATOR LIGHT OPERATION
(a) Connect the positive (+) lead from the battery to terminal
A−9 and the negative ( −) lead to terminal A−8.
(b) With the air inlet control button pushed in, check that the FRESH or RECIRC indicator light lights up.
(c) Next, push in the button again, and check that the indica-
tor light goes off and the other indicator light lights up.
AICSwitch
.-20-2-CN06571 .-18-2-B
ModeControlSwitch
2=i=~~~:=i~;=j::;5-H--+__Blower Speed
ControlSwitch
TemperatureControl
Switch Connector
"A"
~~.~r-r""""~~~9&ru7 6ill'O'~5 •U3 2
1
20 19iJl
II1716115a1311121110...... L.....-~
Connector"B"
,...,.....-~~'is"'-"'r"""".~~r"'-&765~'o"~•3ru2I
1&17iJl1615ullJ12IliJllO9L...,..L-,_\-L..,-
Z04530
r
!rfl176~54 3 21~
m2019lI:8171611514131211~
Connector"A"
~e@j
AC2718
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AC2722
Connector ”A”Connector ”B”
AC2723
Connector ”A”
Connector ”B”
AC2722
Connector ”A”
Connector ”B”
AC2723
Connector ”A”
Connector ”B”
AC−70
−
AIR CONDITIONING AIR CONDITIONING CONTROL ASSEMBLY
1996 LAND CRUISER (RM451U)
(d) Then connect the positive (+) lead from the battery to ter-
minal A−13 and check that the indicator dims.
If operation is not as specified, replace the A/C control assem-
bly.
3. Mode Control Switch: INSPECT INDICATOR LIGHT OPERATION
(a) Connect the positive (+) lead from the battery to terminal A−9 and the negative ( −) lead to terminal B−16.
(b) Push each of the mode buttons in and check that their in- dicator light lights up.
(c) Then connect the positive (+) lead from the battery to ter-
minal A−13 and check that the indicator dims.
If operation is not as specified, replace the A/C control assem-
bly.
4. Blower Speed Control Switch: INSPECT INDICATOR LIGHT OPERATION
(a) Connect the positive (+) lead from the battery to terminal A−9 and the negative ( −) lead to terminal B−16.
(b) Push each of the blower speed control buttons in and check that their indicator light lights up.
(c) Then connect the positive (+) lead from the battery to ter-
minal A−13 and check that the indicator dims.
If operation is not as specified, replace the A/C control assem-
bly.
c
r
1rf1~716[lJ';W5413 211
1\E~g1~171611514[.3]12111~
-r...'onnector"A"(
IeCBI
AC2719
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Z09805
Connector ”A”Connector ”B”
−
AIR CONDITIONING AIR CONDITIONING CONTROL ASSEMBLY
AC−71
1996 LAND CRUISER (RM451U)
5. A/C or DEF Switch:
INSPECT INDICATOR LIGHT OPERATION
(a) Connect the positive (+) lead from the battery to terminal
A−9 and the negative ( −) lead to terminal B−18.
(b) Push the A/C or DEF switch button in and check that the indicator light lights up.
(c) Then, connect the positive (+) lead from the battery to ter-
minal A−13 and check that the indicator dims.
If operation is not as specified, replace the A/C control assem-
bly.
6. INSPECT AIR INLET CONTROL SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
FRESHA8 − A19Continuity
RECIRCA8 − A18Continuity
If continuity is not as specified, replace the A/C control assem-
bly.
7. INSPECT MODE CONTROL SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
FACEA14 − B16Continuity
BI−LEVELA12 − B16Continuity
FOOTA7 − B16Continuity
FOOT −DEFB11 − B16Continuity
DEFB4 − B16Continuity
If continuity is not as specified, replace the A/C control assem-
bly.
8. INSPECT BLOWER SPEED CONTROL SWITCH CON-
TINUITY
Switch positionTester connectionSpecified condition
OFFA10 − B16Continuity
LOA1 − B16Continuity
M1B9 − B16Continuity
M2B10 − B16Continuity
HIB13 − B16Continuity
Connector"A"
Connector"B"
Connector"A"
Connector"A"
...-~~IIB1~t•7 ,3 2I
20Itl'17"lIB,,113121110
e-20-2-C
In,•71'fIl';;l1oT~312I1\
[20It..117,,110141131211110II
0-20-2-<:.-18-2-B
AC2726
AC2727
219129
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Z04536
AC2SO−04
Z15447
−
AIR CONDITIONING REAR HEATER SWITCH
AC−77
1404
Author: Date:
1996 LAND CRUISER (RM451U)
REAR HEATER SWITCH
INSPECTION
1. REMOVE INSTRUMENT CLUSTER FINISH CENTER
PANEL WITH A/C CONTROL ASSEMBLY
2. REMOVE REAR HEATER SWITCH
3. INSPECT INDICATOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
5 and the negative ( −) lead to terminal 1.
(b) Push each of the rear heater switch knob in and check
that their indicators lights up.
If operation is not as specified, replace the switch.
4. INSPECT SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
HI1 − 4Continuity
OFF−No Continuity
LO1 − 2Continuity
Illumination circuit3 − 6Continuity
If continuity is not as specified, replace the switch.
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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
−
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−
−
Only one illumination light does not light up.1. Bulb
2. Wire Harness−
−
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 −
−
−
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−
−
−
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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BE−6
−
BODY ELECTRICAL BODY ELECTRICAL SYSTEM
1996 LAND CRUISER (RM451U)
Engine oil level warning light does not light up.
1. Bulb
2. Meter Circuit
3. Engine Oil Level Warning Switch
4. Wire Harness−
BE−32
BE−34 −
Low oil pressure warning light does not light up.
1. Bulb
2. Low Oil Pressure Warning Switch
3. Meter Circuit
4. Wire Harness−
BE−32
BE−34 −
Fuel level warning light does not light up.
1. Bulb
2. Fuel Level Warning Switch
3. Meter Circuit
4. Wire Harness−
BE−34
BE−32 −
INDICATOR LIGHTS:
COMBINATION METER
SymptomSuspect AreaSee page
High beam indicator light does not light up.
1. Bulb
2. Headlight and Taillight System
3. Meter Circuit
4. Wire Harness−
BE−19
BE−32 −
Shift indicator lights do not light up. (ALL)
1. Shift Position Indicator Wiring Circuit
2. Park/Neutral Position Switch
3. Wire Harness
4. Bulb−
BE−34 AT −6
−
Shift indicator lights do not light up. (L, 2, D)
1. Bulb
2. Shift Position Indicator Wiring Circuit
3. Park/Neutral Position Switch
4. Light Control Rheostat
5. Wire Harness−
BE−34 AT −6
BE−34 −
Shift indicator lights do not light up. (PWR)
1. Bulb
2. Shift Position Indicator Wiring Circuit
3. Pattern Select Switch
4. Wire Harness−
BE−34 AT −6
−
Shift indicator lights do not light up. (2nd START)
1. Bulb
2. Shift Position Indicator Wiring Circuit
3. ECM
4. Wire Harness−
AT −6
−
−
Only one shift indicator does not light up.1. Bulb
2. Shift Position Indicator Wiring Circuit−
BE−34
Indicator lights do not light up. (Except Turn, Hi −beam)1. GAUGE Fuse (I/P F/B)
2. Wire Harness−
−
O/D OFF indicator light does not light up.
1. Bulb
2. O/D Main Switch
3. Meter Circuit
4. Wire Harness−
−
BE−32 −
Malfunction indicator light does not light up.
1. Bulb
2. ECM
3. Wire Harness−
−
−
Cruise control indicator light does not light up.
1. Bulb
2. Cruise Control ECU
3. Meter Circuit
4. Wire Harness−
−
BE−32 −
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BE27G−01
BE1843
−
BODY ELECTRICAL TURN SIGNAL AND HAZARD WARNING SYSTEM
BE−19
1996 LAND CRUISER (RM451U)
INSPECTION
1. INSPECT HAZARD WARNING SWITCH CONTINUITY
ConditionTester connectionSpecified condition
Switch OFF7 − 10Continuity
Switch ON7 − 8
4 − 5 − 6 − 9Continuity
Illumination circuit2 − 3Continuity
If continuity is not as specified, replace the switch.
2. INSPECT TURN SIGNAL FLASHER OPERATION
(a) Connect the positive (+) lead from the battery to terminal
2 and the negative ( −) lead to terminal 3.
(b) Connect the 2 turn signal light bulbs parallel to each other
to terminals 1 and 3, and check that the bulbs flash.
HINT:
The turn signal lights should flash 60 to 120 times per minute.
If one of the front or rear turn signal lights has an open circuit,
the number of flashes will be more than 140 per minute.
If operation is not as specified, replace the flasher.
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−
BODY ELECTRICAL COMBINATION METER
BE−35
1996 LAND CRUISER (RM451U)
RPM (DC 13.5 V, 25 °C (77 ° F))
Standard indicationAllowable range
700630 − 770
1,000900 − 1,100
2,0001,875 − 2,125
3,0002,850 − 3,150
4,0003,850 − 4,150
5,0004,850 − 5,150
4. INSPECT VOLTMETER
ON−VEHICLE:
Compare the tester and voltmeter indications.
If error is excessive, replace the voltemeter.
5. INSPECT FUEL RECEIVER GAUGE OPERATION
(a) Disconnect the connector from the sender gauge.
(b) Turn the ignition switch ON, and check that the receiver gauge needle indicates EMPTY.
(c) Connect terminals 4 and 5 on the wire harness side con- nector through a 3.4 W test bulb.
(d) Turn the ignition switch ON, and check that the bulb lights up and the receiver gauge needle moves towards the full
side.
HINT:
Because of the silicon oil in the gauge, it will take a short time
for needle to stabilize.
If operation is not as specified, inspect the receiver gauge resis-
tance.
6. INSPECT FUEL RECEIVER GAUGE RESISTANCE
Between terminalsResistance (Ω )
A − B85.5 − 105.5
A − C126 − 150
B − C*90 − 11 0
*: Include voltmeter resistance
If resistance value is not as specified, replace the fuel receiver
gauge.
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BE−36
−
BODY ELECTRICAL COMBINATION METER
1996 LAND CRUISER (RM451U)
7. INSPECT FUEL SENDER GAUGE OPERATION
(a) Connect a series of three 1.5 V dry cell batteries.
(b) Connect the positive (+) lead from the dry cell batteries to
terminal 4 through a 3.4 W test bulb and the negative ( −)
lead to terminal 5.
(c) Connect the positive (+) lead from the voltmeter to termi- nal 4 and the negative ( −) lead to terminal 5.
(d) Check that the voltage rises as the float is moved from the
full to empty position.
8. INSPECT FUEL SENDER GAUGE RESISTANCE
Measure the resistance between terminals 4 and 5.
Float position: mm (in.)Resistance (Ω )
F: Approx. 15.0 (0.591)Approx. 3.0
E: Approx. 200.0 (7.874)Approx. 110.0
If resistance value is not as specified, replace the sender
gauge.
9. INSPECT FUEL LEVEL WARNING LIGHT
(a) Disconnect the connector from the sender gauge.
(b) Connect terminals 1 and 5 on the wire harness side con-
nector.
(c) Turn the ignition switch ON, and check that the warning
light lights up.
If the warning light does not light up, test the bulb.
10. INSPECT FUEL LEVEL WARNING SWITCH
(a) Apply battery positive voltage between terminals 1 and 5
through a 3.4 W test bulb, and check that the bulb lights
up.
HINT:
It will take a short time for the bulb to light up.
(b) Submerge the switch in fuel, and check that the bulb goes
out.
If operation is not as specified, replace the sender gauge.
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