Sequoia 4WD V8-4.6L (1UR-FE) (2010)
Air Injection Control Valve: Testing and Inspection
Air Switching Valve (for Bank 1)
1UR-FE EMISSION CONTROL: AIR SWITCHING VALVE (for Bank 1): INSPECTION
1. INSPECT AIR SWITCHING VALVE ASSEMBLY
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
(b) If the result is not as specified, replace the air switching valve.
(c) Check the operation of the air switching valve.
(1) Check that air does not flow from port A to port B.
NOTICE:
Make sure the applied pressure is 30 kPa (0.3 kgf/cm2, 4.4 psi) or less.
(2) If the result is not as specified, replace the air switching valve.
(3) Apply battery voltage across terminals 1 and 2.
NOTICE:
When applying voltage, do not touch terminals 3, 4 and 5.