Nissan Altima Owners Manual: Tachometer

The tachometer indicates engine speed in revolutions


The tachometer indicates engine speed in revolutions per minute (rpm). Do not rev engine into the red zone 1 .

CAUTION

When engine speed approaches the red zone, shift to a higher gear or reduce engine speed. Operating the engine in the red zone may cause serious engine damage.

    Speedometer and odometer
    Speedometer The speedometer indicates vehicle speed. Odometer/Twin trip odometer The odometer 1 and the twin trip odometer 2 are displayed below the Vehicle Information Display when the ignit ...

    Engine coolant temperature gauge
    The gauge indicates the engine coolant temperature. The engine coolant temperature is within the normal range 1 when the gauge needle points within the zone shown in the illustration. The en ...

    Other materials:

    Spark plug
    Removal and Installation 1. Ignition coil 2. Spark plug 3. Rocker cover REMOVAL 1. Remove the ignition coil. Refer to EM-35, "Removal and Installation". 2. Remove the spark plug with a suitable spark plug wrench. INSPECTION AFTER REMOVAL • Do not use a wir ...

    Microphone signal circuit
    Description Power is supplied to the microphone from the AV control unit. The microphone transmits voice signals to the AV control unit. Diagnosis Procedure 1.CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND MICROPHONE CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect AV control unit connect ...

    AM radio reception
    AM signals, because of their low frequency, can bend around objects and skip along the ground. In addition, the signals can be bounced off the ionosphere and bent back to earth. Because of these characteristics, AM signals are also subject to interference as they travel from transmitter to r ...