MX5 mk4 Manual
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Free to use workshop manual for your 2015+ Mk4 'ND' Mazda MX-5
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START STOP UNIT

Purpose

  • Controls several systems based on input/output signals from switches.

Function

  • The start stop unit controls systems based on the input/output signals.

  • The controlled functions are as follows:

Control Table

Control

Content

Reference

Keyless entry system control

When the lock/unlock buttons on the transmitter are pressed at a distance away from the vehicle, all the doors lock/unlock.

(See KEYLESS ENTRY SYSTEM.)

Advanced keyless entry system control

Authorization of the remote transmitter being carried is automatically performed using radio waves, and all the doors lock/unlock according to the switch operation.

(See ADVANCED KEYLESS ENTRY SYSTEM.)

Push button start system control

When the push button start is pressed, authorization of the remote transmitter brought into the vehicle is automatically performed.

(See PUSH BUTTON START SYSTEM [KEYLESS ENTRY SYSTEM].)

(See PUSH BUTTON START SYSTEM [ADVANCED KEYLESS ENTRY SYSTEM].)

Immobilizer system control

The immobilizer system only allows remote transmitters that have been previously programmed to the vehicle to start the engine.

(See IMMOBILIZER SYSTEM.)

On-board diagnostic system control

The start stop unit is equipped with an on-board diagnosis function which records DTCs in the event of a malfunction.

(See ON-BOARD DIAGNOSIS SYSTEM [START STOP UNIT].)

CAN (Controller Area Network)

Sends and receives signals between CAN system-related modules using CAN system.

(See MULTIPLEX COMMUNICATION SYSTEM.)

Structural View

System Wiring Diagram

Fail-safe

Keyless entry system
  • Not applicable

Advanced keyless entry system
  • Not applicable

Push button start system
  • If a malfunction is detected in the push button start system, the engine is started by long-pressing the push button start. In addition, if any of the following conditions is met, engine starting is inhibited.

    • Specified time has elapsed since push button start malfunction was detected

    • Engine is started by long-pressing push button start specified number of times

Immobilizer system
  • Not applicable

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Free to use workshop manual for your 2015+ Mk4 'ND' Mazda MX-5

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