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:

    Sunshade motor assembly
    Wiring Diagram ...

    Rear view camera
    Removal and Installation REMOVAL Remove the license plate finisher. Refer to EXL-166, "Removal and Installation". Remove trunk lid finisher. Refer to INT-36, "Exploded View". Disconnect the rear view camera connector (B), press the rear view camera tab (A) and remo ...

    Outside mirrors
    The outside mirror remote control will operate only when the ignition switch is in the ACC or ON position. Move the small switch 1 to select the right or left mirror. Adjust each mirror to the desired position using the large switch 2 . WARNING Objects viewed in the outside mirror on ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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