Skill Training
(1)Measure CX70 air conditioning system pressure,record the measured data into Table 3.14 and make conclusions according to the measurement results
Table 3.14 Air Conditioning System Pressure Measurement
Judge whether the pressure of air conditioner refrigerant is normal or not and if not,you also need to write down the diagnostic fault.
□Yes/□No_______________________________________________________________________________________________________________________________
(2)Inspection of compressor electromagnetic clutch wire connection
Judge whether the following are normal or not and mark it.
Fuse and relay of Compressor is normal:□Yes/□No;
Resistance of electromagnetic clutch is normal:□Yes/□No;
Then Judge whether the performance of compressor’s wire connection is good or not and if not,you also need to write down the diagnostic fault.(https://www.daowen.com)
□Yes/□No_______________________________________________________________
(3)Blower circuit inspection.
Turn on the ignition switch,turn the wind volume knob from gear 1 to 8,and see whether the wind volume of panel air outlet increases successively.
If there is gear missing,check the blower switch first.If it is abnormal without any gear missing,check whether the blower connector is connected firmly or not,whether terminal of wire harness connector is out;in combination with Fig.3.67,use the universal meter to check whether power source,ground circuit,control signal and feedback signal of blower are normal or not.
Table 3.15 Blower Circuit Inspection
Judge whether the performance of blower’s wire connection is good or not and if not,you also need to write down the diagnostic fault.
□Yes/□No___________________________________________________________
Note:
Before dismantling the heating ventilation ventilator control module,remove the negative wire of storage battery first.