heater TOYOTA LAND CRUISER 1998 Factory Owner's Manual
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 1998, Model line: LAND CRUISER, Model: TOYOTA LAND CRUISER 1998Pages: 3115, PDF Size: 54.88 MB
Page 105 of 3115
I06682
I06683
AC-50
- AIR CONDITIONINGREAR HEATER UNIT
2775 Author: Date:
2004 LAND CRUISER (RM1071U)
(c) Remove the nut and the fan.
(d) Remove the screws and the blower motor.
Page 106 of 3115
AC1KQ-05
I07898
1
2
- AIR CONDITIONINGREAR HEATER UNIT
AC-51
2776 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION
1. INSPECT HEATER RADIATOR
If the fins are clogged, clean them with compressed air.
2. INSPECT BLOWER MOTOR OPERATION
Connect battery positive (+) lead to terminal 1 and battery neg-
ative (-) lead to terminal 2, then check that the motor rotates
smoothly.
If operation is not as specified, replace the blower motor.
3. INSPECT AIR MIX SERVOMOTOR (See page DI-1354)
4. INSPECT AIR MIX DAMPER POSITION SENSOR
(See page DI-1345)
Page 107 of 3115
AC1KS-02
- AIR CONDITIONINGREAR HEATER UNIT
AC-53
2778 Author: Date:
2004 LAND CRUISER (RM1071U)
INSTALLATION
Installation is in the reverse of removal (See page AC-47).
Page 108 of 3115
AC1KR-02
AC-52
- AIR CONDITIONINGREAR HEATER UNIT
2777 Author: Date:
2004 LAND CRUISER (RM1071U)
REASSEMBLY
Reassembly is in the reverse of disassembly (See page AC-49).
Page 109 of 3115
AC1KO-04
I03973
I05080
Second Ridge
Hose Clip
Water Hose
I03924
- AIR CONDITIONINGREAR HEATER UNIT
AC-47
2772 Author: Date:
2004 LAND CRUISER (RM1071U)
REMOVAL
1. DRAIN ENGINE COOLANT FROM RADIATOR
HINT:
It is not necessary to drain out all the coolant.
2. DISCONNECT WATER HOSES FROM HEATER RA-
DIATOR PIPES
(a) Using pliers, grip the claws of the clip and slide the clip
along the hose
(b) Disconnect the water hoses
HINT:
At the time of installation, push the water hose on to the heater
radiator pipe to the second ridge on the pipe.
3. REMOVE FRONT SEATS
4. REMOVE REAR CONSOLE BOX
5. REMOVE FRONT CONSOLE BOX COVER
6. REMOVE LOWER CENTER CLUSTER FINISH PANEL
7. REMOVE FRONT DOOR SCUFF PLATE
8. REMOVE COWL SIDE TRIMS
9. REMOVE REAR DOOR SCUFF PLATES
10. REMOVE CENTER PILLAR GARNISHES
11. SLIDE FLOOR CARPET BACKWARD
12. REMOVE COOLER BRACKET
Remove the 4 bolts and the cooler bracket.
Page 110 of 3115
I03975
I03976
AC-48
- AIR CONDITIONINGREAR HEATER UNIT
2773 Author: Date:
2004 LAND CRUISER (RM1071U)
13. REMOVE REAR HEATER DUCT
Remove the bolt, the screw and the rear heater duct.
14. REMOVE REAR HEATER UNIT
(a) Disconnect the connector.
(b) Remove the 3 bolts and the rear heater unit.
Page 228 of 3115
I25040
Built in relayExcept built in relay
I01291
Tester Probe
Tin FoilHeat Wire
I01292
At Center
I01293
0 Volts
Broken
WireSeveral
Volts
Battery
side Ground sideFoil strip
BE-76
- BODY ELECTRICALDEFOGGER SYSTEM
2449 Author: Date:
2004 LAND CRUISER (RM1071U)
3. INSPECT ENGINE ROOM R/B RELAY CIRCUIT (See
Pase BE-15)
HINT:
The mirror heater relay is built in engine room junction block.
Also the relay is constructed with a relay block that is in the junc-
tion block as a unit. To disconnect the wire harness connecting
with relay block is impossible. If the relay has a malfunction, re-
place it with junction block assembly wire harness together.
4. INSPECT DEFOGGER WIRE
NOTICE:
When cleaning the glass, use a soft, dry cloth, and wipe the
glass in the direction of the wire. Take care not to damage
the wires.
Do not use detergents or glass cleaners with abrasive in-
gredients.
When measuring voltage, wrap a piece of tin foil around the
tip of the negative probe and press the foil against the wire
with your finger, as shown.
(a) Turn the ignition switch ON.
(b) Turn the defogger switch ON.
(c) Inspect the voltage at the center of each heat wire, as
shown.
VoltageCriteria
Approx. 5VOkay (No break in wire)
Approx. 10V or 0VBroken wire
HINT:
If there is approximately 10 V, the wire is broken between the
center of the wire and the positive (+) end. If there is no voltage,
the wire is broken between the center of the wire and ground.
(d) Place the voltmeter positive (+) lead against the defogger
wire on the battery side.
(e) Place the voltmeter negative (-) lead with the foil strip
against the wire on the ground side.
(f) Slide the positive (+) lead from battery to ground side.
(g) The point where the voltmeter deflects from several V to
zero V is the place where the defogger wire is broken.
HINT:
If the heat wire is not broken, the voltmeter indicates 0 V at the
positive (+) end of the heat wire but voltage gradually increases
to about 12 V as the meter probe moves to the other end.
Page 229 of 3115
I01294
Repair Point
Broken
Wire
Marking Tape
I01295
I25799
5
12
- BODY ELECTRICALDEFOGGER SYSTEM
BE-77
2450 Author: Date:
2004 LAND CRUISER (RM1071U)
5. IF NECESSARY, REPAIR DEFOGGER WIRE
(a) Clean the broken wire tips with grease, wax and silicone
remover.
(b) Place the masking tape along both sides of the wire for
repair.
(c) Thoroughly mix the repair agent (Dupont paste No.
4817).
(d) Using a fine tip brush, apply a small amount of the agent
to the wire.
(e) After a few minutes, remove the masking tape.
(f) Do not repair the defogger wire for at least 24 hours.
6. w/ Mirror heater:
INSPECT MIRROR HEATER OPERATION
(a) Connect the positive (+) lead from the battery to terminal
5 and the negative (-) lead to terminal 12.
(b) Check that the mirror becomes warm.
HINT:
It will take a short time for the mirror to become warm.
Page 230 of 3115
BE0GS-19
I24745
Mirror Assenbly
Mirror Heater
Rear Window Defogger
Cowl Side J/B LH
DEFOG Fuse
DEFOG Relay
Ignition Switch Integration Control Panel Assembly
Defogger Switch
Mirror Heater Switch Engine Room R/B
MIR HTR Fuse
MIR HTR Relay
BE-74
- BODY ELECTRICALDEFOGGER SYSTEM
2447 Author: Date:
2004 LAND CRUISER (RM1071U)
DEFOGGER SYSTEM
LOCATION
Page 232 of 3115
I25040
Built in relayExcept built in relay
I01291
Tester Probe
Tin FoilHeat Wire
I01292
At Center
I01293
0 Volts
Broken
WireSeveral
Volts
Battery
side Ground sideFoil strip
BE-76
- BODY ELECTRICALDEFOGGER SYSTEM
2449 Author: Date:
2004 LAND CRUISER (RM1071U)
3. INSPECT ENGINE ROOM R/B RELAY CIRCUIT (See
Pase BE-15)
HINT:
The mirror heater relay is built in engine room junction block.
Also the relay is constructed with a relay block that is in the junc-
tion block as a unit. To disconnect the wire harness connecting
with relay block is impossible. If the relay has a malfunction, re-
place it with junction block assembly wire harness together.
4. INSPECT DEFOGGER WIRE
NOTICE:
When cleaning the glass, use a soft, dry cloth, and wipe the
glass in the direction of the wire. Take care not to damage
the wires.
Do not use detergents or glass cleaners with abrasive in-
gredients.
When measuring voltage, wrap a piece of tin foil around the
tip of the negative probe and press the foil against the wire
with your finger, as shown.
(a) Turn the ignition switch ON.
(b) Turn the defogger switch ON.
(c) Inspect the voltage at the center of each heat wire, as
shown.
VoltageCriteria
Approx. 5VOkay (No break in wire)
Approx. 10V or 0VBroken wire
HINT:
If there is approximately 10 V, the wire is broken between the
center of the wire and the positive (+) end. If there is no voltage,
the wire is broken between the center of the wire and ground.
(d) Place the voltmeter positive (+) lead against the defogger
wire on the battery side.
(e) Place the voltmeter negative (-) lead with the foil strip
against the wire on the ground side.
(f) Slide the positive (+) lead from battery to ground side.
(g) The point where the voltmeter deflects from several V to
zero V is the place where the defogger wire is broken.
HINT:
If the heat wire is not broken, the voltmeter indicates 0 V at the
positive (+) end of the heat wire but voltage gradually increases
to about 12 V as the meter probe moves to the other end.