Nissan Maxima Service and Repair Manual: Engine oil
Inspection
OIL LEVEL
NOTE:
- Before starting the engine, check the oil level. If the engine
is already started, stop it and allow 10 minutes before checking.
- Check that the oil level is within the range as indicated on
the dipstick.
- If it is out of range, add oil as necessary until the dipstick
indicates the correct level.

ENGINE OIL APPEARANCE
- Check engine oil for white milky appearance or excessive
contamination.
- If engine oil becomes milky, it is highly probable that it is
contaminated with engine coolant. Repair or replace damaged parts.
OIL LEAKAGE
Check for oil leakage around the following areas:
- Oil pan
- Oil pan drain plug
- Oil pressure switch
- Oil filter
- Oil cooler
- IVT cover
- Front cover
- Mating surface between cylinder block and cylinder head
- Mating surface between cylinder head and rocker cover
- Crank oil seal (front and rear)
OIL PRESSURE CHECK
WARNING:
- Be careful not to burn yourself, as engine oil may be hot.
- Put the CVT shift selector in the Park "P" position.
- . Check the oil level. Refer to OIL LEVEL.
- Remove engine under cover. Refer to EXT-15, "Exploded View".
- Disconnect oil pressure switch harness connector at the oil
pressure switch. Remove oil pressure switch using suitable tool and
install Tools.
CAUTION: Do not drop or shock oil pressure
switch.

Tool numbers : ST25051001 (J-25695-1)
: ST25052000 (J-25695-2)
- Start the engine and warm it up to normal operating temperature.
- Check oil pressure with engine running under no-load, using Tool.
If difference is extreme, check oil passage and oil pump for oil leaks.
- After the inspections, install the oil pressure switch using suitable
tool as follows:
- Remove the old sealant adhering to
oil pressure switch and engine.
- Apply thread sealant and tighten the oil
pressure switch to specification.
Use Genuine High Performance Thread
Sealant, or equivalent.
- After warming up engine, make sure there are no
engine oil leaks.
- Install engine under cover.
Changing Engine Oil
WARNING:
- Be careful not to burn yourself, as the engine oil may be hot.
- Prolonged and repeated contact with used engine oil may cause
skin cancer; try to avoid direct skin contact with used oil. If skin
contact is made, wash thoroughly with soap or hand cleaner as soon as
possible.
- Position the vehicle so it is level on the hoist.
- Warm up the engine and check for oil leaks from the engine.
- Stop engine and wait for 10 minutes.
- Remove the oil pan drain plug and oil filler cap.
- Drain the engine oil.
- Install the oil pan drain plug with a new washer and refill the
engine with new engine oil.
CAUTION:
- Be sure to clean the oil pan drain plug and install with a new
washer.
- The refill capacity depends on the oil temperature and drain
time. Use the specifications for reference only. Always use the dipstick
to determine when the proper amount of oil is in the engine.
- Warm up the engine and check around the oil pan drain plug and oil
filter for oil leaks.
- Stop engine and wait for 10 minutes.
- Check the engine oil level using the dipstick.
CAUTION: Do not overfill the engine with
engine oil.
Removal and Installation
REMOVAL
Drain engine oil. Refer to LU-9, "Changing Engine Oil".
Remove front fender protector side cover (RH). Refer to EXT-15,
"Exploded View".
...
Other materials:
Combination switch reading system
System Diagram
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 ...
Slip indicator lamp
Description
Component Function Check
1.CHECK SLIP INDICATOR LAMP OPERATION
Check that the lamp illuminates for approximately 2 seconds after the
ignition switch is turned ON.
Diagnosis Procedure
1.CHECK SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis
...
P0456 evap control system
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0456 is displayed with DTC P0442, first perform the trouble diagnosis
for DTC P0456.
This diagnosis detects very small leakage in the EVAP line between fuel tank
and EVAP canister purge volume
control solenoid valve, using the intake manifold va ...