Nissan Maxima Service and Repair Manual: Power generation voltage variable control system
System Diagram
System Description
Power generation variable voltage control system has been adopted. By varying the voltage to the generator, engine load due to power generation of the generator is reduced and fuel consumption is decreased.
NOTE: When any malfunction is detected in the power generation variable voltage control system, power generation is performed according to the characteristic of the IC regulator in the generator.
Component Description
|
Component part |
Description |
| Battery current sensor | The battery current sensor is installed on the battery cable at the negative terminal. The battery current sensor detects the charging/ discharging current of the battery and sends a voltage signal to the ECM according to the current value detected. |
| ECM | The battery current sensor detects the charging/discharging current
of the battery. The ECM judges the battery condition based on
this signal.
The ECM judges whether to request more output via the power generation voltage variable control according to the battery condition. When performing the power generation voltage variable control, the ECM calculates the target power generation voltage according to the battery condition and sends the calculated value as the power generation command value to the IPDM E/R. |
| IPDM E/R | The IPDM E/R converts the received power generation command value into a pulse width modulated (PWM) command signal and sends it to the IC regulator |
| Generator (IC regulator) | The IC regulator controls the power generation voltage by the target
power generation voltage based on the received PWM command
signal.
When there is no PWM command signal, the generator performs the normal power generation according to the characteristic of the IC regulator. |
Charging system
System Diagram
System Description
The generator provides DC voltage to operate the vehicle's electrical system
and to keep the battery charged.
The voltage output is controlled by the IC re ...
DTC/circuit diagnosis
CHARGING SYSTEM PRELIMINARY INSPECTION
Diagnosis Procedure
1.CHECK BATTERY TERMINALS CONNECTION
Check if battery terminals are clean and tight
2.CHECK FUSE
Check for blown fuse and fusible link.
...
Other materials:
P0703 brake switch B
Description
BCM detects ON/OFF state of the stop lamp switch and transmits the data to
the TCM via CAN communication
by converting the data to a signal.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION: Always drive vehicle at a safe speed.
NOTE: Immediately after perform ...
Loose fuel cap warning
The LOOSE FUEL CAP warning appears in the
vehicle information display when the fuel-filler
cap is not tightened correctly after the vehicle has
been refueled. It may take a few driving trips for
the message to be displayed. To turn off the
warning, perform the following:
1. Remove and inst ...
B263D, B263E, B263f intake door motor
Description
COMPONENT DESCRIPTION
Intake Door Motor
The intake door motor (1) is attached to the blower unit.
It rotates so that air is drawn from inlets set by the A/C auto
amp.
Motor rotation is conveyed to a lever which activates the intake
door.
DTC Logic
DTC DETECTION L ...
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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