Nissan Maxima Service and Repair Manual: System description

EPS SYSTEM

System Diagram

CONTROL DIAGRAM

Nissan Maxima. CONTROL DIAGRAM

System Description

Nissan Maxima. System Description

  • The EPS system controls the power steering solenoid valve
    through the power steering control unit.
  • The valve driving voltage to control the power steering solenoid
    valve varies according to the vehicle speed.

OPERATION PRINCIPLE

During Parking (When Turning The Steering Wheel To The Right)

Nissan Maxima. OPERATION PRINCIPLE

  1. Power steering solenoid valve is closed while a vehicle is stopped.
  2. Pinion "1R", "2R" and "3R" are closed depending on steering torque of steering wheel.
  3. Oil pressure "P" in the gear housing assembly is the sum of oil pressures occurring in "2R" and "3R". This
    results in a light steering force because of high pressure.

During High-speed Operation

Nissan Maxima. During High-speed Operation

  1. Power steering solenoid valve is opened during high-speed operation.
  2. Pinion "1R", "2R" and "3R" are closed depending on steering torque of steering wheel.
  3. Oil pressure "2R" does not occur because the power steering solenoid valve is on full throttle.
  4. Oil pressure "P" in the gear housing assembly includes only oil pressure occurring in "3R" and results in a
    heavy steering force.

Component Parts Location

Nissan Maxima. Component Parts Location

  1. Power steering control unit M59
    (view with glove box removed)
  2. Power steering solenoid valve E14

Component Description

Nissan Maxima. Component Description

    Basic inspection
    DIAGNOSIS AND REPAIR WORKFLOW Work Flow DETAILED FLOW 1.COLLECT THE INFORMATION FROM THE CUSTOMER It is also important to clarify customer complaints before inspection. First of all, reproduce s ...

    DTC/circuit diagnosis
    ...

    Other materials:

    System maintenance
    CAUTION Do not use alcohol, benzine or thinner to clean the camera. This will cause discoloration. Do not damage the camera as the monitor screen may be adversely affected. If dirt, rain or snow accumulates on any of the cameras 1 , the MOD system may not operate properly. Clean ...

    Oil filter
    Removal and Installation REMOVAL  Drain engine oil. Refer to LU-9, "Changing Engine Oil".  Remove front fender protector side cover (RH). Refer to EXT-15, "Exploded View".  Remove the oil filter using Tool (A) as shown. Tool number : KV10115801 (J-38956) WARNING: Be ...

    Audio antenna
    Location of Antenna AV control unit AV control unit antenna feeder In-line connectors M103, M501 Antenna amp. Window antenna Satellite radio antenna feeder Satellite radio antenna Window Antenna Repair ELEMENT CHECK Attach probe circuit tester (ohm setting) to antenna ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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