The A/C Pressure Transducer (APT) converts the pressure value
of high pressure line into voltage value after measuring it. Engine ECU
converts the voltage value to control the cooling fan by operating it
in 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.
Inspection
1.
Measure the pressure of high pressure line by measuring voltage output between terminals No. 1 and No. 2.
2.
Inspect the voltage value whether it is within the specified range.
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Specifications
AVN Head Unit
ItemSpecificationPower supplyDC 14.4V Negative groundDark current(Head unit only)USAACC OFF & ADM OFF and then after 96 hours : Max. 0.5mAACC OFF & ADM OFF and then before 96 hours (average) : Max. 10mAAfter ACC OFF & ADM OFF, Within 20 seconds (average ...
Inspection
Antenna Cable
1.
Remove the antenna jack from the audio unit and antenna.
2.
Check for continuity between the center poles of antenna cable.
3.
Check for continuity between the outer poles of antenna cable. There should be continuity.
4.
If there is no continuity, replace ...