(d) Bring the gas leak detector close to the drain hose with the
detector power off.
After the blower motor has stopped, leave the cooling unit for
more than 15 minutes.
Place the gas leak detector sensor under the drain hose.
When bringing the gas leak detector close to the drain hose,
make sure that the gas leak detector does not react to other
If such reaction is unavoidable, the vehicle must be lifted up.
(e) If a gas leak is not detected from the drain hose, remove the blower motor control from the cooling unit.
Insert the gas 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 gas leak
detector close to the pressure switch and perform the test.