Hyundai Tucson: Air Conditioning System / A/C Pressure Transducer Repair procedures

Inspection
1.
Measure the pressure of high pressure line by measuring voltage output between NO.1 and NO.2 terminals.

2.
Inspect the voltage value whether it is sufficient to be regular value or not.

Voltage = 0.00878835 * Pressure + 0.5 [PSIA]

3.
If the measured voltage value is not specification, replace the A/C pressure transducer.
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Recover the refrigerant with a recovery/charging station.
3.
Disconnect the dual pressure switch connector (3P) (A).

Tightening torque:
10 ~ 12 N.m (1.0 ~ 1.2 kgf.m, 7.4 ~ 8.8 lb-ft)

   
Take care that liquid & suction pipe are not bent.
4.
Install in the reverse order of removal.
A/C Pressure Transducer Description and Operation
Description A/C pressure transducer convert the pressure value of high pressure line into voltage value after measure it. By converted voltage value, engine ECU controls cooling fan by operatin ...

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