Hyundai Ioniq (AE): Rail Pressure Sensor (RPS) / Troubleshooting

Other information:

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Photo Sensor. Description and operation

Description The photo sensor is located at the center of the defrost nozzles.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 transferred to the automatic temperature control

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Repair procedures

Replacement1.Remove the battery (-) terminal.2.Remove the engine room under cover.(Refer to Engine Mechanical System - "Engine Room Under Cover")3.Remove the heater hose (A) and AEWP hose (B).4.Disconnect the lock pin to remove the heater hose pump connector (A).