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:
P0603 ECM Power supply
Description
Battery voltage is supplied to the ECM even when the ignition switch
is turned OFF for the ECM memory function of the DTC memory, the
air-fuel ratio feedback compensation value memory, the idle air volume
learning value memory, etc.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMAT ...
The oil pressure warning lamp does not turn off
Description
The oil pressure warning lamp remains illuminated while the engine is running
(normal oil pressure).
Diagnosis Procedure
1.CHECK OIL PRESSURE WARNING LAMP
Perform IPDM E/R auto active test. Refer to PCS-14, "Diagnosis Description".
Is oil pressure warning lamp illumin ...
B2557 vehicle speed
Description
BCM receives the 2 vehicle speed signals via CAN communication. 1 signal is
transmitted by the “unified
meter” Another signal is transmitted by “ABS actuator and electric unit (control
unit)”. BCM compares both signals
to detect the vehicle speed.
DTC Logic
DTC DETECTIO ...