Nissan Altima 2007-2012 Service Manual: 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 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

    Speedometer
    System Diagram System Description The ABS actuator and electric unit (control unit) provides a vehicle speed signal to the combination meter via CAN communication lines. Component Parts Locat ...

    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 mete ...

    Other materials:

    HomeLink® universal transceiver (if so equipped)
    The HomeLink® Universal Transceiver provides a convenient way to consolidate the functions of up to three individual hand-held transmitters into one built-in device. HomeLink® Universal Transceiver: ● Will operate most Radio Frequency (RF) devices such as garage doors, gates, home a ...

    P0826 manual mode switch
    Description Manual mode switch is installed in CVT control device. The manual mode switch sends shift up and shift down switch signals to TCM. TCM sends the switch signals to combination meter via CAN communication line. Then manual mode switch position is indicated on the CVT position ind ...

    Cooling fan
    Removal and Installation 1. Fan blade 2. Fan shroud and motor assembly REMOVAL 1. Drain engine coolant from the radiator. Refer to CO-12, "Changing Engine Coolant". CAUTION: Perform when engine is cold. 2. Remove air cleaner duct assembly. Refer to EM-25, "Removal and In ...