Nissan Maxima Service and Repair Manual: Engine speed signal circuit

Nissan Maxima Service and Repair Manual / Steering / Steering control system / DTC/circuit diagnosis / Engine speed signal circuit

Description

ECM sends engine speed signal to power steering control unit.

Diagnosis Procedure

1.PERFORM ECM SELF-DIAGNOSIS

With CONSULT

Perform ECM self-diagnosis.

2.CHECK HARNESS BETWEEN ECM AND POWER STEERING CONTROL UNIT FOR OPEN

Nissan Maxima. CHECK HARNESS BETWEEN ECM AND POWER STEERING CONTROL UNIT FOR OPEN

  1. Turn the ignition switch OFF.
  2. Disconnect ECM connector E10.
  3. Disconnect power steering control unit connector.
  4. Check continuity between ECM connector E10 (A) terminal 94
    and power steering control unit connector M59 (B) terminal 10.

Nissan Maxima. CHECK HARNESS BETWEEN ECM AND POWER STEERING CONTROL UNIT FOR OPEN

3.CHECK HARNESS BETWEEN ECM AND POWER STEERING CONTROL UNIT FOR SHORT

Nissan Maxima. CHECK HARNESS BETWEEN ECM AND POWER STEERING CONTROL UNIT FOR SHORT

Nissan Maxima. CHECK HARNESS BETWEEN ECM AND POWER STEERING CONTROL UNIT FOR SHORT

  1. Check continuity between ECM connector E10 terminal 94 and
    ground.
  2. Turn ignition switch ON.
  3. Check voltage between ECM connector E10 terminal 94 and
    ground.

Nissan Maxima. CHECK HARNESS BETWEEN ECM AND POWER STEERING CONTROL UNIT FOR SHORT

Nissan Maxima. CHECK HARNESS BETWEEN ECM AND POWER STEERING CONTROL UNIT FOR SHORT

4.CHECK ENGINE SPEED SIGNAL (ECM SIDE)

Nissan Maxima. CHECK ENGINE SPEED SIGNAL (ECM SIDE)

  1. Turn the ignition switch OFF.
  2. Connect ECM connector E10.
  3. Start the engine.
  4. Check signal between ECM connector E10 terminal 94 and
    ground with oscilloscope.

Nissan Maxima. CHECK ENGINE SPEED SIGNAL (ECM SIDE)

5.CHECK ENGINE SPEED SIGNAL (POWER STEERING CONTROL UNIT SIDE)

Nissan Maxima. CHECK ENGINE SPEED SIGNAL (POWER STEERING CONTROL UNIT SIDE)

  1. Turn the ignition switch OFF.
  2. Connect power steering control unit harness connector.
  3. Start the engine.
  4. Check signal between power steering control unit harness connector
    M59 terminal 10 and ground with oscilloscope

Nissan Maxima. CHECK ENGINE SPEED SIGNAL (POWER STEERING CONTROL UNIT SIDE)

6.CHECK TERMINALS AND HARNESS CONNECTORS

  1. Check power steering control unit pin terminals for damage or loose connection with harness connector.
  2. Check ECM pin terminals for damage or loose connection with harness connector.
    Power steering solenoid valve
    Description Power steering solenoid valve controls the power steering oil pressure in the gear housing assembly. Diagnosis Procedure 1.CHECK POWER STEERING SOLENOID VALVE SIGNAL Start eng ...

    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 ...

    Other materials:

    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 CONFIGURATION" to s ...

    Exit assist function
    EXIT ASSIST FUNCTION : System Diagram EXIT ASSIST FUNCTION : System Description OUTLINE When exiting, if the conditions are satisfied, the seat is moved backward from normal sitting position and the steering column is moved up. The seat slide amount at entry/exit operation can be changed ...

    Inspection and adjustment
    ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description After replacing the ABS actuator and electric unit (control unit), perform the neutral position adjustment for the steering angle sensor. ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2026 Copyright www.nimainfo.com
    0.0065