Description & Operation

All models use a steering column mounted combination switch to control turn signals, headlights and wipers. The instrument cluster contains a speedometer, fuel gauge and water temperature gauge. RX-7 and 626 also have a tachometer, voltmeter and oil pressure gauge.

The fuel and temperature gauges operate on 7 volts, supplied by a cluster-mounted voltage regulator. The sending units are variable-resistance type using slightly varied resistance values between models.