Hyundai Genesis: Air Conditioning System / A/C Pressure Transducer Description and Operation
		
		
		
The A/C Pressure Transducer (APT) converts the pressure value
 of high-pressure line into voltage value after measuring it. By 
converted voltage value, engine ECU controls the cooling fan by 
operating it at high speed or low speed. Engine ECU stops the operation 
of the compressor when the temperature of refrigerant line is very high 
or very low irregularly to optimize air conditioning system.

 
   Replacement
1.
Remove the condenser.
2.
Remove the cap (B) on the bottom of the condenser with the L wrench (A).
Tightening torque :
9.81 ~ 14.71 N.m (1.0 ~ 1.5 kgf.m, 7.2 ~ 10.8 lb-ft)			 ...
   
 
   Inspection
1.
Measure the pressure of high pressure line by measuring voltage output between terminal “1” and “2”.
2.
Inspect the voltage value whether it is the regular value or not.  ...
   
 
   Other information:
   Inspection
1. Fuse inspection
Install the test fuse to the switch fuse and relay fuse part in order to confirm a normal joint fit. 
2. Inspection of connector by each part
Check whether each connector is damaged, or there is terminal surge or incomplete connection. 
[Engine room junction box] ...
   
   Inspection
    
In case of working on the non-gloss timber trimming, special care shall be given to the following.
 • 
When removing with the screwdriver or remover, wrap the protective tape on the tools.
 • 
Be careful not to damage parts because the non-gloss timber t ...