Page 415 of 558

– Compressor and Tension Pulley HEATER AND MANUAL
AIR CONDITIONER55-25
INSTALLATION SERVICE POINT
ACOMPRESSOR INSTALLATION
If a new compressor is installed, first adjust the amount of
oil according to the procedures described below, and then
install the compressor.
1. Measure the amount (X m) of oil within the removed
compressor.
2. Drain (from the new compressor) the amount of oil
calculated according to the following formula, and then
install the new compressor.
New compressor oil amount
120 to 140 m – X m = Y m
NOTE
(1)“120 to 140 ml” is the amount of oil filled in a new
compressor.
(2) Y m indicates the amount of oil in the refrigerant
line, the condenser, the cooling unit etc.
INSPECTION
REFRIGERANT-TEMPERATURE SWITCH SIMPLE
CHECK
When the A/C is off, check that there is continuity between
the refrigerant-temperature switch terminals. If no, replace
the compressor assembly.
COMPRESSOR MAGNETIC CLUTCH OPERATION
INSPECTION
Connect the battery (+) terminal to the compressor side
terminal, and earth the battery (–) terminal to the body of
the compressor. The condition is normal if the sound of the
magnetic clutch (click) can be heard.AView A
Refrigerant temperature
switch terminal
Page 419 of 558
– Condenser and Condenser Fan HEATER AND MANUAL
AIR CONDITIONER55-29
REMOVAL SERVICE POINTS
AFAN MOTOR AND SHROUD ASSEMBLY
REMOVAL
Remove the clamp bolt of the power steering oil cooler pipe.
Remove the fan motor and shroud assembly while pulling
the power steering oil cooler pipe toward you.
BDISCHARGE HOSE / LIQUID PIPE A
DISCONNECTION
Plug the open end of the disconnected hose and the opening
in the cooling unit not to let foreign matter get into them.
Caution
Seal the hoses completely, otherwise the compressor
oil and receiver will absorb water vapour easily.
CCONDENSER REMOVAL
Move the radiator to the engine side and then lift up the
condenser to remove it.
INSPECTION
CONDENSER FAN MOTOR CHECK
Battery connection terminalCondenser fan operation
12
Rotate
Condenser
Page 440 of 558

FULL-AUTOMATIC AIR CONDITIONER – Troubleshooting55-50
Inspection procedure 13
Condenser fan does not operate.
Probable cause
If the condenser fan does not turn when the A/C is ON, the cause is probably
a malfunction of the condenser fan motor activation circuit. In this case, reduced
cooling performance will be caused if the vehicle is not running.Malfunction of condenser fan motor
Malfunction of condenser fan motor relay (HI, LO)
Malfunction of wiring harness or connector
NG
Repair OK
Check the trouble symptom.
NG
Check the harness between the condenser fan motor relay (LO)
and the condenser fan motor, and repair if necessary.
NG
Repair
OK
Check the trouble symptom.
NG
Check the harness between the condenser fan motor relay (LO)
and the body earth, and repair if necessary.
OK
Measure at the condenser fan motor relay (LO) connector A-113X.
Disconnect the connector.
(1) Continuity between terminal (4) and body earth
OK:Continuity
(2) Voltage between terminal (2) and body earth
OK:System voltage
(3) Voltage between terminal (1) and body earth
OK:System voltage(1) NGCheck the following connector:
A-113X
Condenser fan motor check (Refer to P.55-29.)NG
Replace
NG
Repair
OK
Check the trouble symptom.
NG
Check the harness between the condenser fan motor relay (LO)
and the A/C-ECU, and repair if necessary.
(2) NG
Check the following connector:
A-113X
NG
Repair
OK
Check the trouble symptom.
NG
Check the harness between the condenser fan motor relay (LO)
and the fusible link 2, and repair if necessary.
(3) NG
Check the following connector:
A-113X
OK
Continued to the next page
OK
Measure at the condenser fan motor connector A-99.
Disconnect the connector, and measure at the harness
side connector.
Connect the connector A-113X terminal (2) to the battery.
Voltage between terminal (2) and body earth
OK:System voltageNGCheck the following connector:
A-113X
OK
Condenser fan motor relay check (Refer to P.55-14.)NG
Replace
Page 447 of 558
FULL-AUTOMATIC AIR CONDITIONER – On-vehicle Service55-57
POWER RELAY CHECK
Follow the same procedures as for the heater and manual
air conditioner except for the following. (Refer to P.55-13.)
BLOWER HIGH SPEED RELAY
Battery voltageTerminal No.
1234
Power is not supplied
Power is supplied
IDLE-UP OPERATION CHECK
The idle-up inspection procedures are the same as for the
heater and manual air conditioner. (Refer to P.55-14.)
Standard value: 750 ± 50 r/min
Standard value: 850 ± 50 r/min
NOTE
If the idling speed is not within the standard value range,
adjust it.
Blower high speed relay
Page 449 of 558
FULL-AUTOMATIC AIR CONDITIONER –
Damper Control Motor Assembly
and Power Transistor55-59
INSPECTION
INSIDE/OUTSIDE CHANGEOVER DAMPER MOTOR
CHECK
Battery connection
terminalLever operation
12
Moves to the outside air position
Moves to the inside air position
Caution
Cut off the battery voltage when the lever is in the stop
position.
AIR MIX DAMPER MOTOR CHECK
Motor
Battery connection
terminalLever operation
13
Moves to COOL position
Moves to HOT position
Caution
Cut off the battery voltage when the lever is in the stop
position.
Potentiometer
Check to ensure that the resistance value changes gradually
within the standard value range when the resistance value
is measured between connector terminals 2 and 5 or between
5 and 6 with the above inspection condition unchanged.
Standard value: Approx. 0.18 – 4.82 kΩ
Page 450 of 558
FULL-AUTOMATIC AIR CONDITIONER –
Damper Control Motor Assembly
and Power Transistor55-60
AIR OUTLET CHANGEOVER DAMPER MOTOR CHECK
Motor
Battery connection
terminalLever operation
13
Moves to DEF. position
Moves to FACE position
Caution
Cut off the battery voltage when the lever is in the stop
position.
Potentiometer
Check to ensure that the resistance value changes within
the standard value range when the resistance value is
measured between connector terminals 2 and 5 or between
5 and 6 with the above inspection condition unchanged.
Standard value: Approx. 0.18 – 4.82 kΩ
Page 459 of 558
– Engine Compartment WIRING HARNESS
CONFIGURATION DIAGRAMSC-5
A-29 (2-B) Front harness and battery harness
combination
A-33 (1) Horn (LH)
A-34 (1) Horn (LH)
A-35 (2-BR) Outside air temperature sensor
with fully automatic air conditioner>
A-38 (2-B) Engine coolant temperature sensorA-39 (1-B) Engine coolant temperature gauge unit
A-45 (1) Horn (RH)
A-46 (1) Horn (RH)
A-49 (2-BR) Dual pressure switch
A-50 (2-B) Front speed sensor (RH)
ABS>
Page 460 of 558
– Engine Compartment WIRING HARNESS
CONFIGURATION DIAGRAMS
Connector
symbol
–51
thru
–131
A
Earth cable
C-6
ENGINE COMPARTMENT
A-51 (3-B) Crank angle sensor
A-52 (1-B) Oil pressure switch
A-53 (2-B) Injector (No.1)
A-54 (2-B) Injector (No.2)
A-55 (2-B) Injector (No.3)
A-56 (2-B) Injector (No.4)
A-63 (4-B) O
2 sensor
A-72 (2-B) Back-up lamp switch
A-73 (1-L) Engine speed detection connector
A-76 (6) Valve relay
A-77 (5) Motor relay A-78 (2-GR) Side turn signal lamp (LH)
A-80X (5) Horn relay
A-82X (5) Radiator fan relay (LO)
A-84X (5) Headlamp relay
A-86X (4) Alternator relay
A-88 (6-B) Control harness and battery harness
combination
A-89 (2-BR) Front turn signal lamp (LH)
A-90 (3-B) Headlamp (LH)
A-91 (2) Position lamp (LH)
A-92 (2-B) Fog lamp (LH)