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.
CAUTION:
1. Do not use the same A/C recovery / charging station as conventional belt-driven compressors.
2. Since the electric compressor uses high-voltage, you should use PVE oil which have high Volumetric Resistivity.
3. If the PVE oil of the system gets mixed PAG oil, then dielectric breakdown due to decreased volumetric Resistivity can occur and inoperative A/C compressor may result, A/C compressor may not work.
3. Disconnect the A/C pressure transducer connector (3P) (A).
4. Remove the A/C pressure transducer (B).
Tightening torque:
10 - 12 N.m (1.0 - 1.2 kgf.m, 7.4 - 8.8 lb-ft)
CAUTION:
Take care that liquid & suction pipe are not bent.
5. Installation is the reverse order of removal.