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 

AC–93

).

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