Hyundai Tucson: Multifunction Switch Inspection

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Body Electrical System / Rear Wiper Washer / Multifunction Switch Inspection

  1. Check for continuity between the terminals in each switch position as shown below.

Inspection (With Diagnostic Tool)

Inspection (With Diagnostic Tool)

  1. In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (diagnostic tool).

    The diagnostic system (diagnostic tool) provides the following information.

(1) Fault Code Searching : Checking failure and code number (DTC)

(2) Data Analysis : Checking the system input/output data state

(3) Actuation test: Checking the system operation condition

(4) S/W Management: Controlling other features including system option setting and zero point adjustment

  1. If diagnose the vehicle by diagnostic tool, select "DTC Analysis" and "Vehicle".

  1. If check current status, select the "Data Analysis" and "Car model".

  1. Select the 'IBU_BCM' to search the current state of the input/output data.



  1. With the washer motor connected to the reservoir tank, fill the reservoir tank with water.


Before filling the reservoir tank with water, check the filter for foreign material or contamination, if necessary, clean the filter.

  1. Connect positive (+) and negative (-) battery cables to terminals 3 and 1 respectively to see that the washer motor runs and water is pumped.
  2. Check that the motor operates normally.

    Replace the motor if it operates abnormally.




  • Provides a service position for blade removal with hidden rear wiper.
  • The position of the wiper blade service position operates front and rear.
  1. After starting OFF, hold the MIST switch for 2 seconds.


  • Perform the operation within 20 seconds after starting OFF.
  • The wipers rotate 0.7s and move to the service position.
  1. Remove the wiper blade (A) by pulling it in the direction of the arrow.



  1. Istall the wiper blade.
  2. When the wiper MIST is activated after starting ON, the wiper returns to its original position.


     Electro Chromic Inside Rear View Mirror

    Description Electro Chromic Inside Rear View Mirror The ECM (Electro Chromatic inside rear view Mirror) is intended dim the reflecting light in the rear view mirror. The forward facing sensor detects brightness of the surroundings, while the r

     Panorama Sunroof

    Component Location Panorama sunroof Panorama sunroof switch Panorama sunroof motor & Controller Roller blind motor & Slave controller Circuit Diagram Connector Pin Information Removal Disconnect the negative

     Lighting System


     Wireless Power Charger System

    Description and Operation Wireless Power Charger System During ACC or IG ON, battery voltage is supplied to the wireless power charger system to transmit an output of 5 W to mobile phone. Mobile phones certified with the wireless charging st

     Auto defogging actuator

    Components Location Auto defogging actuator Inspection Turn the ignition switch OFF. Disconnect the auto defogging connector. Verify that the auto defogging actuator operates to the open position when connecting 12V to termina