TACHOMETER
2016 – MX-5 – Body and Accessories
TACHOMETER
Purpose
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The tachometer notifies the driver of the engine speed. In addition, it warns the driver to change gears using the red zone, which indicates that the engine is running at excess engine speed, and the striped zone, which indicates that the engine is on the verge of running at excess engine speed.
Functions
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The instrument cluster displays the engine speed per minute based on the engine speed signal from the PCM.
Construction
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An analog needle display tachometer with a stepping motor mechanism has been adopted.
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The striped zone, which indicates that the engine is on the verge of running at excess speed, and the red zone, which indicates the engine is running at excess speed, are printed on the tachometer.
Operation
1. When the instrument cluster receives (1) the engine speed signal via CAN communication from the PCM while the ignition is switched ON (engine on), it displays (2) the current engine speed.
Fail-safe
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Not applicable