Matrix AWD L4-2.4L (2AZ-FE) (2009)
(d) Bring the halogen leak detector close to the drain hose with the detector's power off, and then turn the detector on.
HINT:
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After the blower motor has stopped, let the cooling unit stand for more than 15 minutes.
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Bring the halogen leak detector sensor under the drain hose.
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When bringing the halogen leak detector close to the drain hose, make sure that the halogen leak detector does not react to volatile gases.
If it is not possible to avoid interference from volatile gases, the vehicle should be lifted up to allow testing.
(e) If a refrigerant leak is not detected from the drain hose, remove the blower motor control from the cooling unit. Insert the halogen leak detector
sensor into the unit and perform the test.
(f) Disconnect the pressure switch connector and leave it for approximately 20 minutes. Bring the halogen leak detector close to the pressure
switch and perform the test.