Nissan Maxima Service and Repair Manual: Combination switch reading system
System Diagram
![Nissan Maxima. System Diagram](/images/manuals/399/nissan_maxima_combination_switch_reading_system_5368.jpg)
System Description
OUTLINE
- BCM reads the status of the combination switch (light, turn
signal, wiper and washer) and recognizes the status of each switch.
- BCM has a combination of 5 output terminals (OUTPUT 1 - 5) and 5
input terminals (INPUT 1 - 5) and reads a maximum of 20 switch states.
COMBINATION SWITCH MATRIX
![Nissan Maxima. COMBINATION SWITCH MATRIX](/images/manuals/399/nissan_maxima_combination_switch_reading_system_5369.jpg)
Combination switch INPUT-OUTPUT system list
![Nissan Maxima. Combination switch INPUT-OUTPUT system list](/images/manuals/399/nissan_maxima_combination_switch_reading_system_5370.jpg)
![Nissan Maxima. Combination switch INPUT-OUTPUT system list](/images/manuals/399/nissan_maxima_combination_switch_reading_system_5371.jpg)
COMBINATION SWITCH READING FUNCTION
Description
- BCM reads the status of the combination switch at 10ms intervals
normally.
![Nissan Maxima. COMBINATION SWITCH READING FUNCTION](/images/manuals/399/nissan_maxima_combination_switch_reading_system_5372.jpg)
NOTE: BCM reads the status of the combination switch
at 60ms intervals when BCM is controlled at low power consumption mode.
- BCM operates as follows and judges the status of the
combination switch.
- It operates the transistor on OUTPUT side in the following
order: OUTPUT 1 → 2 →3 →4 →5 and outputs voltage waveform.
- The voltage waveform of OUTPUT corresponding to the formed
circuit is input into the interface on INPUT side if any (1 or more)
switches are ON.
- It reads this change of the voltage as the status signal of
the combination switch.
![Nissan Maxima. COMBINATION SWITCH READING FUNCTION](/images/manuals/399/nissan_maxima_combination_switch_reading_system_5373.jpg)
Operation Example
In the following operation example, the combination of the status signals of
the combination switch is replaced as follows: INPUT 1 - 5 to "1 - 5" and
OUTPUT 1 - 5 to "A - E".
Example 1: When a switch (TAIL LAMP) is turned ON
- The circuit between OUTPUT 4 and INPUT 5 is formed when the TAIL
LAMP is turned ON.
![Nissan Maxima. Operation Example](/images/manuals/399/nissan_maxima_combination_switch_reading_system_5374.jpg)
- BCM detects the combination switch status signal "5D" when the signal of
OUTPUT 4 is input to INPUT 5.
- BCM judges that the TAIL LAMP switch is ON when the signal "5D" is
detected.
Example 2: When some switches (TRUN RH, TAIL LAMP) are turned ON
- The circuits between OUTPUT 1 and INPUT 5 and between OUTPUT 4 and
INPUT 5 are formed when the TURN RH switch and TAIL LAMP switch are
turned ON.
![Nissan Maxima. Operation Example](/images/manuals/399/nissan_maxima_combination_switch_reading_system_5375.jpg)
- BCM detects the combination switch status signal "5AD" when the signals
of OUTPUT 1 and OUTPUT 4 are input to INPUT 5.
- BCM judges that the TURN RH switch and TAIL LAMP switch are ON
when the signal "5AD" is detected.
WIPER INTERMITTENT DIAL POSITION SETTING (FRONT WIPER INTERMITTENT OPERATION)
BCM judges the wiper intermittent dial 1 - 7 by the status of INT VOLUME 1,
2, and 3 switches.
![Nissan Maxima. WIPER INTERMITTENT DIAL POSITION SETTING (FRONT WIPER INTERMITTENT OPERATION)](/images/manuals/399/nissan_maxima_combination_switch_reading_system_5376.jpg)
System Diagram
System Description
BCM (Body Control Module) controls parking, license plate and tail lamps
operation.
IPDM E/R (Intelligent Power Distribution Module Engine Room) operates ...
COMMON ITEM
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 f ...
Other materials:
Front Timing Chain Case
Exploded View
Intake valve timing control solenoid valve cover gasket (LH)
Intake valve timing control solenoid valve cover gasket (RH)
Intake valve timing control solenoid valve cover (RH) (bank 1)
O-ring 5. Intake valve timing control solenoid valve (RH) with
O-ring
Intake valve t ...
Conditions the remote start will not work
The remote start will not operate if any of the
following conditions are present:
"Remote Engine Start" is turned off in the
"Locking" section of the Vehicle Settings
menu.
The ignition switch is placed in the ON position.
The hood is not securely closed.
The hazard warning lights are ...
Service data and specifications (SDS)
Oil Pressure
Regulator Valve
Oil Pump
Oil Capacity
...