Geely CK Series 2007 Workshop Manual page 294

5 The Pedal must be depressed heavily
[Description]
Use traditional method to check
the booster and the brake pedal stroke. Scan
meter HCU function can be used to check the
fault of the normally-open valve
Use Scan meter HCU function can be used to check the
normally-open valve
Ok
Check the booster and the pedal stroke with Non-ABS tra-
ditional method
Likely Causes
Boost faulty
Normally-close valve faulty
Abn.
Replace the HCU
287