Nissan Maxima Service and Repair Manual: ECU diagnosis information

POWER STEERING CONTROL UNIT

Reference Value

TERMINA LAYOUT

Nissan Maxima. TERMINA LAYOUT

PHYSICAL VALUES

Nissan Maxima. PHYSICAL VALUES

CAUTION: When using circuit tester or oscilloscope to measure voltage for inspection, be sure not to extend forcibly any connector terminals.

Fail Saf

EPS system

  • EPS system enters the fail-safe mode (that allows the steering
    force to be controlled without impairing the drive ability) if any of
    the input/output signals to/from EPS system (power steering control
    unit) deviate from the standard.
    NOTE:
    The system enters the fail-safe mode if the engine speed remains
    at 1,500 RPM or more for over 10 seconds while the vehicle is
    stopped. This is normal.
  • The fail-safe function is cancelled when a vehicle speed signal of 2
    km/h (1.2 MPH) or more is inputted or the key switch is turned
    OFF→ ON. EPS system restores the normal operation at that time

Nissan Maxima. EPS system

Nissan Maxima. EPS system

    Vehicle speed signal circuit
    Description Combination meter sends vehicle speed signal to power steering control unit. Diagnosis Procedure 1.PERFORM COMBINATION METER SELF-DIAGNOSIS Perform combination meter self-diagnosis. 2 ...

    Wiring diagram
    ELECTRONICALLY CONTROLLED POWER STEERING SYSTEM Wiring Diagram ...

    Other materials:

    M&A branch line circuit
    Diagnosis Procedure 1.CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). 2.CHECK HARNESS FOR OPEN CI ...

    Power seat for passenger side
    Wiring Diagram       ...

    AV control unit
    Removal and Installation AV control unit AV control unit bracket (LH) AV control unit bracket (RH) A/C auto amp. Cluster lid C (with A/C and AV switch assembly attached) Clip AV CONTROL UNIT Removal CAUTION: Before replacing AV control unit, perform "READ CONFIGURATI ...

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    Nissan Maxima Service and Repair Manual

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