Kia Optima Hybrid: 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 A/C pressure transducer connector (3P) (A).

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

   
Take care that liquid & suction pipe are not bent.
4.
Installation is 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 operating it high ...

Photo Sensor Description and Operation

Description 1. The photo sensor is located at the right of defrost nozzle. 2. The photo sensor contains a photovoltaic (sensitive to sunlight) diode. The solar radiation received by its light receiving ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Photo Sensor Description and Operation


Description 1. The photo sensor is located at the right of defrost nozzle. 2. The photo sensor contains a photovoltaic (sensitive to sunlight) diode. The solar radiation received by its light receiving portion, generates an electromotive force in proportion to the amount of radiation received which is ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Troubleshooting


Troubleshooting SymptomPossible causeRemedyTachometer does not operateCluster fuse (10A) blownCheck for short and replace fuseCAN line faultyCheck the EMSTachometer faultyCheck tachometerWiring or ground faultyRepair if necessaryFuel gauge does not operateCluster fuse (10A) blownCheck for short and replace ...

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