Geely CK MR479QA 2007 - Part IV Air Conditioner and Inside & Outside Trim; Chapter 1 A;C System

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Note: This inspection uses the "03 HCU diagnosis" of the Scan Meter.
Item Key Switch Action Standard Notes
ON Depress the pedal
When LF wheel can not
rotate, the pedal does
not descen
d
Normally-closed
valve inspection
ON
（
two valves
and pumps are
energized
simultaneousl
y
）
Depress the pedal
LF wheel can rotate
freely, the pedal does
not descend
Normally-open
valve inspection
ON Depress the pedal
When RF wheel can not
rotate, the pedal does
not descen
d
Normally-closed
valve inspection
ON
（
two valves
and pumps are
energized
simultaneousl
y
）
Depress the pedal
RF wheel can rotate
freely, the pedal does
not descend
Normally-open
valve inspection
ON Depress the pedal
When LR wheel can not
rotate, the pedal does
not descend
Normally-closed
valve inspection
ON
（
two valves
and pumps are
energized
simultaneously
）
Depress the pedal
LR wheel can rotate
freely, the pedal does
not descend
Normally-open
valve inspection
ON Depress the pedal
When RR wheel can
not rotate, the pedal
does not descend
Normally-closed
valve inspection
ON
（
two valves
and pumps are
energized
simultaneousl
y
）
Depress the pedal
RR wheel can rotate
freely, the pedal does
not descend
Normally-open
valve inspection
RR wheel
normally-open
and closed valves
seal performance
Note: The vacuum booster must have vacuum applied when performing the following
inspection.
LF Wheel
normally-open
and closed valves
seal performance
RF wheel
normally-open
and closed valves
seal performance
LR wheel
normally-open
and closed valves
seal performance