Nissan Maxima Service and Repair Manual: Check cooling fan relay

Description

The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred via the CAN communication line from BCM to ECM via the IPDM E/R.

Component Function Check

1.CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

  1. Turn ignition switch ON.
  2. Connect CONSULT and select "DATA MONITOR" mode.
  3. Select "LOAD SIGNAL" and check indication under the following conditions.

Nissan Maxima. CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

2.CHECK LIGHTING SWITCH FUNCTION

Check "LOAD SIGNAL" indication under the following conditions.

Nissan Maxima. CHECK LIGHTING SWITCH FUNCTION

3.CHECK HEATER FAN CONTROL SWITCH FUNCTION

Select "HEATER FAN SW" and check indication under the following conditions.

Nissan Maxima. CHECK HEATER FAN CONTROL SWITCH FUNCTION

Diagnosis Procedure

1.INSPECTION START

Confirm the malfunctioning circuit (rear window defogger, headlamp or heater fan).

2.CHECK REAR WINDOW DEFOGGER SYSTEM

3.CHECK HEADLAMP SYSTEM

4.CHECK HEATER FAN CONTROL SYSTEM

    Cooling fan
    Description The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, refrigerant pressure, and air conditioner ON signal. The control system has 4-step con ...

    Electronic controlled engine mount
    Description In the idle range, ECM turns OFF the electronically-controlled engine mount control solenoid valve and applies manifold pressure to the electronically controlled engine mount. This de ...

    Other materials:

    Diagnosis system (BCM)
    COMMON ITEM CONSULT Function (BCM - COMMON ITEM) APPLICATION ITEM CONSULT performs the following functions via CAN communication with BCM. SYSTEM APPLICATION BCM can perform the following functions. RETAINED PWR CONSULT Function (BCM - RETAINED PWR) DATA MONITOR ...

    Door switch
    Exploded View Door switch Removal and Installation REMOVAL Remove the door switch screw (A). Disconnect the harness connector from the door switch (1) and remove INSTALLATION Installation is in the reverse order of removal. ...

    Programming HomeLink
    If you have any questions or are having difficulty programming your HomeLink buttons, refer to the HomeLink web site at: www.homelink.com or call 1-800-355-3515. NOTE: Place the ignition switch in the ACC position when programming HomeLink. It is also recommended that a new battery be placed ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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