subaru Workshop Repair Guides

Subaru Workshop Service and Repair Manuals

Temperature Gauge > < Speedometer Head|Specifications|Page 5695
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Tachometer: Description and Operation

The tachometer drive circuit connects to engine revolution detecting circuit in engine control module.
When the engine revolution increases/decreases, the voltage of this circuit also increases/decreases, changing the magnetic force of tachometer drive
coil.
Thus, the tachometer hand moves together with engine revolution change.

Temperature Gauge > < Speedometer Head|Specifications|Page 5695