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Hyundai Tucson: Start/Stop Button (SSB)

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Body Electrical System / Button Engine Start System / Start/Stop Button (SSB)

A single stage push button is used for the driver to operate the vehicle.

A single stage push button is used for the driver to operate the vehicle. Pressing this button allows:

  • To activate the power modes ' O f f . 'Accessory', 'Ignition' and 'Start' by switching the corresponding terminals
  • To start the engine
  • To stop the engine

The contact will be insured by a micro-switch and a backlighting is provided to highlight the marking of the button whenever necessary.

Three (3) LED colors are located in the outside ring of the switch assy. They display the status of the system.

They are OFF(White) / ACC(Amber) / ON(Green).

BESfButton Engine Start) System State Chart

System STATES in LEARNING MODE

In learning mode, the BES System can be set in 6 different states, depending on the status of the terminals and Engine status: Referring to the terminals, the system states described in the table above

Referring to the terminals, the system states described in the table above are the same as those found in a system based 011 a mechanical ignition switch.

One of the features distinctive from the Mechanical Ignition Switch-based system is that the BES system allows specific transition from OFF to START without going through ACC and IGN states.

System STATES IN VIRGIN MODE

The BES System can be set in 5 different states (OFF LOCKED is not available in virgin mode), depending on the status of the terminals and Engine status : Referring to the terminals, the system states described in the table above

Referring to the terminals, the system states described in the table above are the same as those found in a system based 011 a mechanical ignition switch.

One of the features distinctive from the Mechanical Ignition Switch-based system is that the BES system allows specific transition from OFF to START without going through ACC and IGN states.

Removal

  1. Disconnect the negative (-) battery terminal.
  2. Remove the cluster fascia panel.

    (Refer to Body - "Cluster Fascia Panel")

  3. Remove the front monitor.

    (Refer to AVN System - "Front Monitor")

  4. Using a remover and remove the crash pad garnish CTR.

  1. Disconnect the start / stop button connector (A).

  1. Loosen the mounting screws and remove the start / stop button (A).

Installation

Installation

  1. Install the start / stop button.
  2. Install the crash pad garnish CTR.
  3. Install the front monitor.
  4. Install the cluster fascia panel.

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