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
- Turn ignition switch ON.
- Connect CONSULT and select "DATA MONITOR" mode.
- Select "LOAD SIGNAL" and check indication under the following conditions.
2.CHECK LIGHTING SWITCH FUNCTION
Check "LOAD SIGNAL" indication under the following conditions.
3.CHECK HEATER FAN CONTROL SWITCH FUNCTION
Select "HEATER FAN SW" and check indication under the following conditions.
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:
Front door switch (driver side)
Description
Detects front door LH open/close condition.
Component Function Check
1. CHECK FUNCTION
Select "DOOR SW-FL" in "DATA MONITOR" mode with CONSULT.
Check the front door switch signal under the following conditions
Diagnosis Procedure
1. CHECK FRONT DOOR SWITCH LH CIRCUIT
...
Daytime running light system
The LED portion of the headlights automatically
illuminate at 100% intensity when the engine is
started and the parking brake released. The daytime
running lights operate with the headlight
switch in the OFF position. When you turn the
headlight switch to the position for
full
illumination t ...
Combination switch system symptoms
SYMPTOM DIAGNOSIS
COMBINATION SWITCH SYSTEM SYMPTOMS
Symptom Table
Perform the data monitor of CONSULT to check for any malfunctioning
item.
Check the malfunction combinations
Identify the malfunctioning part from the agreed combination and repair
or replace the part.
...
Nissan Maxima Owners Manual
- Illustrated table of contents
- Safety-Seats, seat belts and supplemental restraint system
- Instruments and controls
- Pre-driving checks and adjustments
- Monitor, climate, audio, phone and voice recognition systems
- Starting and driving
- In case of emergency
- Appearance and care
- Do-it-yourself
- Maintenance and schedules
- Technical and consumer information
Nissan Maxima Service and Repair Manual
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