
1. Horn switch
2. Horn relay
3. Horn (Low pitch)
4. Horn (High pitch)
5. Clock spring
1.Remove the front bumper assembly.(Refer to Body - "Front Bumper Assembly")
2.Remove the bolts and disconnect the horn connectors (C), then remove the high pitch horn (B) and low pitch horn (A).


1.Install the horns after connecting the horn connectors.
2.Install the front bumper cover.
1.Remove the horn relay (A) from the engine room relay box.
2.There should be continuity between the No.30 and No.87 terminals when power and ground are connected to the No.85 and No.86 terminals.
3.There should be no continuity between the No.30 and No.87 terminals when power is disconnected.



Hyundai Tucson (NX4) 2022-2026 Service Manual: Components and Components Location
- Components (1)
With Smart Key
Connector Pin Information
NoConnector AConnector BConnector CConnector D
1Speed_input-ECU groundBlower motor operate_output
2-Rear washer switch_outputpower ground-
3Front washer switch_inputESCL (+)_outputBattery (+) ECU-
4PDW-R power_inputESCL (-)_output ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Manifold Absolute Pressure Sensor (MAPS)
- Description
Manifold Absolute Pressure Sensor (MAPS) is a speed-density type sensor
and is installed on the surge tank. It senses absolute pressure of the
surge tank and transfers the analog signal proportional to the pressure
to the ECM. By using this signal, the ECM calculates the intak ...