Toyota Tundra. Manual — part 1729

5

REMOVE NO. 2 AIR TUBE

a

Disconnect the air pump connector

Fig. 62: Identifying Air Pump Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Disconnect the wire harness clamp

c

Remove the 4 nuts, No 2 air tube and 2 gaskets

Fig. 63: Identifying No. 2 Air Tube And Gaskets
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

6

REMOVE AIR SWITCHING VALVE ASSEMBLY

a

Remove the 3 nuts and air switching valve

NOTE:

Be careful not to damage the installation surface of the gaskets.

NOTE:

Do not hold the bracket of the air switching valve.

2009 Toyota Tundra

2009 ENG NE Emission Control (2UZ-FE) - Tundra

Fig. 64: Identifying Air Switching Valve
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION

1

INSPECT AIR SWITCHING VALVE ASSEMBLY

a

Measure the resistance according to the value(s) in the table below

Standard resistance

AIR SWITCHING VALVE ASSEMBLY STANDARD RESISTANCE SPECIFICATION

Tester Connection Condition Specified Condition

1 - 5

20°C (68°F)

4 5 to 5 5 ohms

1 - Body ground

Always

1 Mohms or higher

5 - Body ground

2009 Toyota Tundra

2009 ENG NE Emission Control (2UZ-FE) - Tundra

Fig. 65: Inspecting Air Switching Valve Assembly
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the result is not as specified, replace the air switching valve assembly

b

Check operation of the air switching valve

Fig. 66: Checking Operation Of Air Switching Valve
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

1

Check that air does not flow from port A to port B

If the result is not as specified, replace the air switching valve

2

Apply battery voltage across terminals 1 and 5

NOTE:

When measuring the resistance, do not touch terminals 2, 3, and 4.

NOTE:

Make sure the applied pressure is 30 kPa (0.3 kgf/cm

2

, 4.4 psi)

or less.

NOTE:

When applying voltage, do not touch terminals 2, 3, and 4.

2009 Toyota Tundra

2009 ENG NE Emission Control (2UZ-FE) - Tundra

Fig. 67: Applying Battery Voltage Across Terminals 1 And 5
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3

Check that air flows from port A to port B

If the result is not as specified, replace the air switching valve

INSTALLATION

1

INSTALL AIR SWITCHING VALVE ASSEMBLY

a

Install the air switching valve with the 3 nuts

Torque: 16 N*m (163 kgf*cm, 12 ft.*lbf)

NOTE:

Do not hold the bracket of the air switching valve.

2009 Toyota Tundra

2009 ENG NE Emission Control (2UZ-FE) - Tundra