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:
The driver can disable the power
window switches on the rear passengers'
doors by pressing the power
window lock switch. The indicator will
be illuminated.
When the power window lock switch
is pressed:
The driver's master control can
operate all the power windows.
The front pas ...
Inspection
1.
Check for resistance between terminals in each switch position(LH).
[Audio]
SwitchConnectorterminalResistance(±5%)Speech Recognition6~818.81k?SEEK UP6~84.51k?SEEK DN6~82.11k?Mode6~86.71k?SEND6~8430?END6~81.11k?MUTE1~80VOL UP2~3-VOL DN2~3-
2.
Check for resistance between te ...