Nissan Altima 2007-2012 Service Manual: Engine coolant temperature gauge
System Diagram
System Description
The engine coolant temperature gauge indicates the engine coolant temperature.
The ECM provides an engine coolant temperature signal to the combination meter via CAN communication lines.
Component Parts Location
1. Combination meter M24
2. IPDM E/R E17, E18, E201, F10
3. ECM E10
4. TCM F16
5. BCM M17, M18, M19, M21 (view with instrument panel removed)
6. ABS actuator and electric unit (control unit) E26
7. Fuel level sensor unit and fuel pump (fuel level sensor) B42 (view with rear seat and inspection hole cover removed)
8. Ambient sensor E211 (view of front bumper fascia)
9. Oil pressure switch F41 (QR25DE) (view with engine removed)
10. Oil pressure switch F41 (VQ35DE) (view with engine removed)
11. Parking brake switch M73 (Sedan with M/T and Coupe) (view with center console removed)
12. Parking brake switch E35 (Sedan with CVT) (view with instrument lower cover LH removed)
Component Description
Tachometer
System Diagram
System Description
The tachometer indicates engine speed in revolutions per minute (rpm).
The ECM provides an engine speed signal to the combination meter via CAN
commu ...
Fuel gauge
System Diagram
System Description
The fuel gauge indicates the approximate fuel level in the fuel tank.
The fuel gauge is regulated by the unified meter control unit and a variable
resistor s ...
Other materials:
Blind Spot Warning (BSW) System / Lane Departure Warning (LDW) System (if so
equipped)
The Blind Spot Warning (BSW) system helps
alert the driver of other vehicles in adjacent lanes
when changing lanes.
The Lane Departure Warning (LDW) system
helps alert the driver when the vehicle is traveling
close to either the left or the right of a traveling
lane.
The BSW/LDW systems u ...
P2122, P2123 APP Sensor
Description
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelerator
position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometers which tr ...
Front seat head restraints/headrests
WARNING
● Head restraints/headrests supplement
the other vehicle safety systems. They
may provide additional protection
against injury in certain rear end collisions.
Adjust the head
restraints/headrests properly, as specified
in this section. Check the adjustment
after someone else ...