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ODOMETER/TRIPMETER

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2016 – MX-5 – Body and Accessories

ODOMETER/TRIPMETER

Purpose

  • The odometer/tripmeter notifies the driver of the total travel distance or the traveled distance over a specific interval.

Functions

  • The instrument cluster calculates the traveled distance based on the traveled distance signal from the PCM and displays it.

  • The instrument cluster stores the calculated travel distance in its microcomputer.

Odometer calculation function

  • The instrument cluster calculates the total traveled distance based on the traveled distance signal from the PCM and the stored traveled distance, and displays it.

  • The total traveled distance which can be displayed is from 0 to 999999.

Tripmeter A/B calculation function

  • The instrument cluster calculates the traveled distance based on the traveled distance signal from the PCM and the traveled distance from when the tripmeter is reset, and displays it.

  • There are A and B tripmeters and the display for each can be switched with each press of the tripmeter switch.

  • If the tripmeter switch is continuously pressed for approx. 1 s or more, the tripmeter traveled distance is reset (0.0)

  • The traveled distance which can be displayed is from 0.0 to 99999.9. After 99999.9, it returns to 0.0.

Construction

  • The odometer/tripmeter is displayed in the LCD of the instrument cluster.

  • The tripmeter switch is positioned in the instrument cluster.

  • The calculation for the odometer/tripmeter display and the traveled distance is performed by the instrument cluster microcomputer.

Operation

1. When the instrument cluster receives (1) the traveled distance signal from the PCM while the ignition is switched ON (engine on), it adds up (2) the total traveled distance (odometer) data which is recorded, traveled distance over a specific interval (tripmeter), and the traveled distance.

2. The instrument cluster displays (3) the calculated travel distance in the LCD.

Odometer/tripmeter switching operation

  • The instrument cluster switches the odometer/tripmeter display when a tripmeter switch on is detected.

  • The instrument cluster returns the traveled distance display to 0.0 when a tripmeter switch on is detected for approx. 1 s or more while tripmeter A or B is displayed.

Fail-safe

  • Not applicable

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