Nissan Maxima Service and Repair Manual: Basic inspection
INSPECTION AND ADJUSTMENT
Operational Check
DESCRIPTION
The purpose of the operational check is to check that the individual system
operates normally.
Conditions: Engine running at normal operating temperature
INSPECTION PROCEDURE
1.CHECK MEMORY FUNCTION
- Start the engine.
- Operate the temperature control dial (driver side) and raise the
temperature setting to 32C (90F).
- Press the OFF switch.
- Turn the ignition switch OFF.
- Turn the ignition switch ON.
- Press the AUTO switch.
- Check that the temperature setting, before turning the ignition
switch OFF, is stored.
2.CHECK BLOWER MOTOR SPEED
- Operate the fan control dial. Check that the fan speed changes.
- Check the operation for all fan speeds.
3.CHECK DISCHARGE AIR (MODE SWITCH AND DEF SWITCH)
- Press the MODE switch and the DEF switch.
- Check that the air outlets change according to each indicated air
outlet by placing a hand in front of the
outlets. Refer to HAC-11, "System Description".
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and
intake door position is at FRE
( ) when the D/F (
) or DEF ( ) is selected.
4.CHECK INTAKE AIR
- Press the REC () switch.
Indicator is turned ON.
- Press the FRE ( )
switch. Indicator is turned ON.
- Listen for the intake door position change. (Slight change of
blower sound can be heard.)
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and
the FRE ( ) switch is
pressed when the D/F ( ) or DEF (
) is selected.
5.CHECK A/C SWITCH
- Press the A/C switch.
- The A/C switch indicator is turned ON
Confirm that the compressor clutch engages (sound or visual inspection).
6.CHECK TEMPERATURE DECREASE
- Operate the compressor.
- Operate the temperature control switch (driver side) and lower the
temperature setting to 18C (60F).
- Check that the cool air blows from the outlets.
7.CHECK TEMPERATURE INCREASE
- Operate the temperature control dial (driver side) and raise the
temperature setting to 32C (90F) after
warming up the engine.
- Check that the warm air blows from the outlets.
8.CHECK DUAL MODE FUNCTION
- Press the DUAL mode switch, and then check that "DUAL" is shown on
the display.
- Operate the temperature control dial (driver side). Check that the
discharge air temperature (driver side)
changes.
- Operate the temperature control dial (passenger side). Check that
the discharge air temperature (passenger
side) changes.
- Press the DUAL mode switch, and then check that the temperature
setting (driver/passenger) is unified to
the driver side temperature setting.
9.CHECK AUTO MODE
- Press the AUTO switch, and then check that "AUTO" is shown on the
display.
- Operate the temperature control dial (driver side). Check that the
fan speed, outlet air or intake air
changes. (The discharge air temperature or fan speed varies depending on the
ambient temperature, invehicle
temperature, and temperature setting.)
Temperature Setting Trimmer
Description
If the temperature felt by the customer is different than the airflow
temperature controlled by the temperature
setting, the auto amplifier control temperature can be adjusted to compensate
for the temperature setting.
How to set
Using CONSULT, perform "TEMP SET CORRECT" in "WORK SUPPORT" of HVAC.
NOTE:
- When the temperature setting is set to 25.0C (77F) and −3.0C
(−6F), the temperature controlled by auto amp is 25.0C (77F) −
3.0C (6F) = 22.0C (71F) and the temperature becomes lower than the
temperature setting.
- When the battery cable is disconnected from the negative
terminal or when the battery voltage becomes 10V or less, the setting of the
difference between the temperature setting and control temperature may be
cancelled.
Foot Position Setting Trimmer
Description
In the FOOT mode, the air blowing to the DEF can be turned ON/OFF.
How to set
Using CONSULT, perform "BLOW SET" in "WORK SUPPORT" of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the
battery voltage becomes 10V
or less, the setting of the discharge air mix ratio in FOOT mode may be
cancelled.
Inlet Port Memory Function (FRE)
Description
- If the ignition switch is turned to the OFF position while the FRE
( ) switch is set to ON (fresh
air intake),
"Perform the memory" or "Do not perform the memory" of the FRE (
) switch ON (fresh air intake)
condition
can be selected.
- If "Perform the memory" was set, the FRE (
) switch will be ON (fresh air intake) when turning the ignition
switch to the ON position again.
- If "Do not perform the memory" was set, the air inlets will be
controlled automatically when turning the ignition
switch to the ON position again.
How to set
Using CONSULT, perform "FRE MEMORY SET" in "WORK SUPPORT" of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the
battery voltage becomes 10V or less, the setting of the
FRE switch memory function may be cancelled.
Inlet Port Memory Function (REC)
Description
- If the ignition switch is turned to the OFF position while the REC
( ) switch is set to ON (recirculation),
"Perform the memory" or "Do not perform the memory" of the REC (
) switch ON (recirculation)
condition
can be selected.
- If "Perform the memory" was set, the REC (
) switch will be ON (recirculation) when turning the ignition
switch to the ON position again.
- If "Do not perform the memory" was set, the air inlets will be
controlled automatically when turning the ignition
switch to the ON position again.
How to set
Using CONSULT, perform "REC MEMORY SET" in "WORK SUPPORT" of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the
battery voltage becomes 10V or less, the setting of the
REC switch memory function may be cancelled.
COMPRESSOR CONTROL FUNCTION
Description
PRINCIPLE OF OPERATION
Compressor is not activated.
Functional circuit diagram
CAN (1): A/C switch signal
: Blower fan motor switch signal
CAN (2): A ...
Other materials:
Lifting sensor (front)
Description
The lifting sensor (front) is installed to the seat frame.
The pulse signal is input to the driver seat control unit when the
lifting (front) is operated.
The driver seat control unit counts the pulse and calculates the lifting
(front) amount of the seat.
Component Funct ...
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
...
Front door finisher
Exploded View
Mirror cover
Front door finisher
Step lamp
Arm rest finisher
Main power window and door lock/ unlock switch finisher
Front door grip cover
Seat memory switch (if equipped)
Inside release handle escutcheon
Inside release handle
Flat head screws
&nbs ...