Toyota Sequoia (2005). Manual — part 958
AC1LU–01
AC–94
–
AIR CONDITIONING
PRESSURE SWITCH
3821
INSTALLATION
Installation is in the reverse order of removal (See page
I21427
Heater Relay
Condenser
Fan Relay
Magnetic
Clutch Relay
Rear Heater Relay
AC3HU–02
N02832
1
2
3
5
1
2
3
5
4
4
Z18060
2
3
1
5
5
1
3
2
–
AIR CONDITIONING
RELAY
AC–95
3822
RELAY
INSPECTION
1.
REMOVE RELAY
(a)
Remove the heater relay.
(b)
Remove the rear heater relay.
(c)
Remove the condenser fan relay.
(d)
Remove the magnetic clutch relay.
2.
INSPECT RELAY
(a)
Inspect the heater and rear heater relay for continuity.
Condition
Tester connection
Specified condition
Constant
1 – 2
3 – 4
Continuity
Apply B+ between
terminals 3 and 5.
3 – 5
Continuity
If continuity is not as specified, replace the relay.
(b)
Inspect the magnetic clutch and condenser fan for relay
continuity.
Condition
Tester connection
Specified condition
Constant
1 – 2
Continuity
Apply B+ between
terminals 1 and 2.
3 – 5
Continuity
If continuity is not as specified, replace the relay.
AC1LZ–05
I21428
1
2
AC–96
–
AIR CONDITIONING
CONDENSER FAN
3823
CONDENSER FAN
ON–VEHICLE INSPECTION
1.
INSPECT CONDENSER FAN OPERATION
Inspect the fan operation under the following conditions, as
shown in the chart.
Test conditions:
Start engine
Blower speed control switch position ”HI”
Temperature control dial at ”COOL” position
Set manifold gauge set
A/C switch ON
Condition
Fan operation (Fan speed)
Refrigerant pressure is less than
1,520 kPa (15.5 kgf/cm
2
, 220 psi)
OFF
Refrigerant pressure is 1,520 kPa
(15.5 kgf/cm
2
, 220 psi) or above
Rotate
If operation is not as specified, proceed to the next inspection.
2.
INSPECT CONDENSER FAN MOTOR OPERATION
(a)
Disconnect the fan connector.
(b)
Connect the battery and ammeter.
(c)
Check that the fan rotates smoothly, and then check the
reading on the ammeter.
Specified amperage: 9.2 to 11.0 A at 20
°
C (68
°
F)
If operation is not as specified, replace the fan motor.
If operation is as specified, check the pressure switch, cooling
fan relays and water temp. switch.
AC1M0–04
I21429
Fan
Fan Shroud
Motor
Condenser Fan
Wire Harness
–
AIR CONDITIONING
CONDENSER FAN
AC–97
3824
COMPONENTS
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