Nissan Altima Owners Manual: Tachometer
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 ...