2014 NISSAN TEANA brake fluid

MWI-2
Wiring Diagram .......................................................30
METER ...............................................................32
Wiring Diagram .................................................... ...32
BASIC INSPECTION ...................................51
DIAGNOSIS AND REPAIR WORKFLOW ...... ...51
Work flow ............................................................. ...51
DTC/CIRCUIT DIAGNOSIS ...................... ...53
U1000 CAN COMM CIRCUIT ......................... ...53
DTC Logic ............................................................ ...53
Diagnosis Procedure .............................................53
U1010 CONTROL UNIT (CAN) .........................54
Description ........................................................... ...54
DTC Logic ...............................................................54
Diagnosis Procedure ..............................................54
B2205 VEHICLE SPEED ...................................55
Description ........................................................... ...55
DTC Logic ...............................................................55
Diagnosis Procedure .............................................55
B2267 ENGINE SPEED .....................................56
Description ........................................................... ...56
DTC Logic ...............................................................56
Diagnosis Procedure ..............................................56
B2268 WATER TEMP ........................................57
Description ........................................................... ...57
DTC Logic ...............................................................57
Diagnosis Procedure ..............................................57
POWER SUPPLY AND GROUND CIRCUIT .....58
COMBINATION METER ........................................ ...58
COMBINATION METER : Diagnosis Procedure ....58
BCM (BODY CONTROL MODULE) ...................... ...58
BCM (BODY CONTROL MODULE) : Diagnosis
Procedure ............................................................ ...
58
IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) .......................... ...
59
IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) : Diagnosis Pro-
cedure .................................................................. ...
59
FUEL LEVEL SENSOR SIGNAL CIRCUIT .......61
Description ........................................................... ...61
Component Function Check ...................................61
Diagnosis Procedure .............................................61
Component Inspection ............................................62
PARKING BRAKE SWITCH SIGNAL CIR-
CUIT ................................................................ ...
63
Description ........................................................... ...63
Component Function Check ...................................63
Diagnosis Procedure ..............................................63
Component Inspection ......................................... ...63
WASHER FLUID LEVEL SWITCH CIRCUIT ....64
Description ........................................................... ...64
Diagnosis Procedure ...............................................64
Component Inspection ............................................64
AMBIENT SENSOR SIGNAL CIRCUIT ............66
Description ........................................................... ...66
Component Function Check ...................................66
Diagnosis Procedure ...............................................66
Component Inspection ............................................67
METER CONTROL SWITCH SIGNAL CIR-
CUIT ................................................................ ...
68
Diagnosis Procedure ............................................ ...68
Component Inspection ............................................69
STEERING SWITCH ..........................................70
Description ........................................................... ...70
Diagnosis Procedure ...............................................70
Component Inspection ............................................70
SYMPTOM DIAGNOSIS ............................72
THE FUEL GAUGE INDICATOR DOES NOT
OPERATE ....................................................... ...
72
Description ........................................................... ...72
Diagnosis Procedure ...............................................72
THE METER CONTROL SWITCH IS INOPER-
ATIVE .............................................................. ...
73
Description ........................................................... ...73
Diagnosis Procedure ...............................................73
THE OIL PRESSURE WARNING CONTIN-
UES DISPLAYING, OR DOES NOT DISPLAY ...
74
Description ........................................................... ...74
Diagnosis Procedure ...............................................74
THE PARKING BRAKE RELEASE WARNING
CONTINUES DISPLAYING, OR DOES NOT
DISPLAY ......................................................... ...
75
Description ........................................................... ...75
Diagnosis Procedure ...............................................75
THE LOW WASHER FLUID WARNING CON-
TINUES DISPLAYING, or DOES NOT DIS-
PLAY ............................................................... ...
76
Description ........................................................... ...76
Diagnosis Procedure ...............................................76
THE DOOR OPEN WARNING CONTINUES
DISPLAYING, OR DOES NOT DISPLAY ...... ...
77
Description ........................................................... ...77
Diagnosis Procedure ...............................................77
THE TRUNK OPEN WARNING CONTINUES
DISPLAYING, OR DOES NOT DISPLAY ...... ...
78
Description ........................................................... ...78
Diagnosis Procedure ...............................................78
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

MWI
COMPONENT PARTSMWI-7
< SYSTEM DESCRIPTION >
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METER SYSTEM : Component DescriptionINFOID:0000000009461670
1. Steering switch 2. BCM (view with combination meter re-
moved) 3. IPDM E/R
4. Combination meter 5. Seat belt buckle switch LH (RH similar) 6. Fuel level sensor unit and fuel pump
(view with fuel pump inspection cover
removed)
7. Engine oil pressure sensor (QR25DE) 8. Engine oil pressure sensor
(VQ35DE) 9. CVT shift selector
(overdrive control switch)
(with QR25DE)
10. Power steering control module 11. ECM 12. TCM
13. ABS actuator and electric unit (control unit) 14. A/C auto amp
(with auto A/C)
(view with A/C swit ch assembly re-
moved) 15. Ambient sensor
16. Meter control switches 17. Parking brake switch (view with lower instrument panel LH
removed) 18. Air bag diagnosis sensor unit
(view with center console assembly re-
moved)
19. Brake fluid level switch 20. Washer fluid level switch (view with front fascia removed)
AWNIA2641ZZ
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MWI-8
< SYSTEM DESCRIPTION >
COMPONENT PARTS
Unit Description
Combination meter Controls the following with the signals received from each unit via CAN communication and the signals
from switches and sensors:
• Speedometer
• Tachometer
• Engine coolant temperature gauge
• Fuel gauge
• Warning lamps
• Indicator lamps
• Meter illumination control
• Meter effect function
• Information display
Meter control switch Transmits the following signals to the combination meter:
• Trip reset switch signal
• Illumination control switch signal (+)
• Illumination control switch signal ( −)
ECM Transmits the following signals to the combination meter via CAN communication:
• Engine speed signal
• Engine coolant temperature signal
• Engine oil pressure warning signal
• Fuel consumption monitor signal
ABS actuator and electric unit
(control unit) Transmits the vehicle speed signal to the combination meter via CAN communication.
Power steering control module Transmits the EPS signal to the combination meter via CAN communication.
BCM Transmits the following signals to the combination meter via CAN communication:
• Tire pressure information
• Position light request signal
• Low tire pressure warning lamp signal
• Door switch signal
• Trunk lamp switch signal
TCM Receives the O/D OFF switch signal from the combination meter via CAN communication.
Transmits the O/D OFF indicator request signal to the combination meter via CAN communication.
CVT shift selector switch
(overdrive co ntrol switch)
(with QR25DE) Transmits the O/D OFF switch signal to the combination meter
Fuel level sensor unit Transmits the fuel level sensor signal to the combination meter.
Seat belt buckle switch LH
(RH similar) Transmits the seat belt buckle switch LH signal to the combination meter.
Air bag diagnosis sensor unit Transmits the following signals to the combination meter:
• Seat belt buckle switch RH signal
• Air bag warning indicator
Engine oil pressure sensor Transmits the engine oil pressure sensor signal to the ECM.
Ambient sensor Transmits the ambient sensor signal to the IPDM E/R.
A/C auto amp. • Receives the ambient sensor signal from the IPDM E/R (with auto A/C).
• Transmits the ambient sensor signal to the combination meter via CAN communication.
Parking brake switch Transmits the parking brake switch signal to the combination meter.
Washer fluid level switch Transmits the washer fluid level switch signal to the combination meter.
Steering switch Transmits the following signals to the information display:
• Display signal
• Menu up signal
• Menu down signal
• Enter signal
• Back signal
IPDM E/R • Receives the ambient sensor signal from the ambient sensor.
• Transmits the ambient sensor signal to the combination meter (without auto A/C).
• Transmits the ambient sensor signal to the A/C auto amp (with auto A/C).
Brake fluid level switch Transmits the brake fluid level switch signal to the combination meter.
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MWI
SYSTEMMWI-13
< SYSTEM DESCRIPTION >
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MASTER WARNING LAMP : System DiagramINFOID:0000000009461683
MASTER WARNING LAMP : System DescriptionINFOID:0000000009461684
When receiving a signal from each unit, switch, or s ensor, the combination meter turns ON/OFF the master
warning lamp in synchronization with the following warnings on the information display:
• Door/trunk open warning
• Parking brake release warning
• Low fuel warning
• Low washer fluid warning
• NO KEY warning
• Low tire pressure warning
• Fuel filler cap warning
METER ILLUMINATION CONTROL
METER ILLUMINATION CONTROL : System DiagramINFOID:0000000009461685
METER ILLUMINATION CONTROL : System DescriptionINFOID:0000000009461686
METER ILLUMINATION CONTROL
Meter illumination control adjusts the brightness of the combination meter illumination using the meter control
switch (illumination control switch).
METER ILLUMINATION CONTROL FUNCTION
The operation of the illumination control switch changes brightness of the meter illumination.
METER EFFECT FUNCTION
AWNIA2975GB
AWNIA2548GB
Meter illumination The number of adjustable steps
Daytime 22 steps
Nighttime 22 steps
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MWI
SYSTEMMWI-15
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Engine-start effect exits when any of the above operat ional conditions is cancelled during the engine-start
effect.
INFORMATION DISPLAY
INFORMATION DISPLAY : System DiagramINFOID:0000000009461689
INFORMATION DISPLAY : System DescriptionINFOID:0000000009461690
FUNCTION
The information display can indicate the following items.
• Outside air temperature
• Trip computer
• Intelligent Key operation information
• CVT shift position indicator
• Odometer
• Warning/Indication messages (Door/trunk open, low oil pressure, CVT, low fuel, low washer fluid, I-Key,
release parking brake, low tire pressure and loose fuel cap).
OUTSIDE AIR TEMPERATURE INDICATION
Displays the ambient temperature based on signals received from:
• The A/C auto amp. via CAN communication (with auto A/C).
• The IPDM E/R (without auto A/C).
LOOSE FUEL CAP
AWNIA2645GB
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MWI-16
< SYSTEM DESCRIPTION >
SYSTEM
The LOOSE FUEL CAP message will display in the information display when the fuel-filler cap is not tightened
correctly. The message will turn off as soon as the EC M detects the fuel-filler cap is properly tightened. The
ECM provides a loose fuel cap signal to the combination meter via CAN communication.
LOW TIRE PRESSURE WARNING
This warning appears when the BCM detects low inflati on pressure or a system malfunction. The BCM sends
a signal to the combination meter via CAN communication to illuminate the low tire pressure warning lamp. In
addition, a warning message will be displayed in the vehicle information display.
DOOR OPEN WARNING
This warning appears when the ignition switch is ON and the door is open. The BCM receives a door switch
signal from the door open door switch. The BCM sends t he door switch signal to the combination meter via
CAN communication lines.
TRUNK OPEN WARNING
This warning appears when the ignition switch is ON and the trunk is opened. The BCM receives a trunk lamp
switch signal from the trunk lamp switch. The BCM s ends the trunk lamp switch signal to the combination
meter via CAN communication.
LOW FUEL WARNING
This warning appears when the fuel level in the fuel tank is less than approximately 4 US gal (15 L, 3.3 Imp
gal). A variable resistor signal is supplied to the combi nation meter from the fuel level sensor unit to determine
the amount of fuel in the fuel tank.
LOW WINDSHIELD WASHER FLUID WARNING
When the windshield washer fluid level is low, the was her fluid level switch provides a ground signal to the
combination meter and the warning is displayed. Once fluid is added, the switch opens and the warning is no
longer displayed.
RELEASE PARKING BRAKE WARNING
When the parking brake is applied, the parking brake switch provides a ground signal to the combination
meter. When the vehicle speed is greater than 4 MPH (7 km/h), the message is displayed and the warning
chime sounds.
SHIFT POSITION INDICATOR
Displays the position of the shift selector based on signals received from TCM via CAN communication.
LOW OIL PRESSURE WARNING
The low oil pressure warning appears in the information display when the combination meter receives a low
engine oil pressure signal from the ECM via CAN communication.
WARNING CHECK INDICATION
The combination meter can cause an interrupt on the information display to indicate a warning, based on sig-
nals received from each unit and switch.
Refer to Owner’s Manual for additional information display items.
COMPASS
COMPASS : DescriptionINFOID:0000000009461691
DESCRIPTION
With the ignition switch in the ON position, and the mode (N) switch
ON, the compass display will indicate the direction the vehicle is
heading.
Vehicle direction is displayed as follows:
• N: north
• E: east
• S: south
•W: west
LKIA0447E
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MWI-20
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (METER)
FUEL W/L
[On/Off] Displays [ON/OFF] condition of low-fuel warning message.
WASHER W/L
[On/Off] Displays [ON/OFF] condition of low washer fluid warning message.
AIR PRES W/L
[ON/OFF] Displays [ON/OFF] condition of tire pressure warning lamp.
KEY G/Y W/L
[On/Off] Displays [ON/OFF] condition of key green warning lamp.
EPS W/L
[On/Off] Displays [ON/OFF] condition of EPS warning indicator.
LCD Displays the value of Intelligent Key system message indication.
ACC SET SPEED
[Off, km/h or mph] Displays OFF or SET vehicle speed status in the information display.
ACC UNIT
[On/Off] Displays [ON/OFF] condition of display unit in the information display.
SHIFT IND
[P, R, N, D, DS] Displays [P, R, N, D, DS] shift selector position.
FUEL CAP W/L
[On/Off] Displays [ON/OFF] condition of loose fuel cap warning message.
O/D OFF SW
[ON/OFF] Displays [ON/OFF] condition of O/D OFF switch.
M RANGE SW
[On/Off] Displays [ON/OFF] condition of manual mode switch.
NM RANGE SW
[On/Off] Displays [ON/OFF] condition of non-manual mode switch.
AT SFT UP SW
[On/Off] Displays [ON/OFF] condition of manual mode shift up switch.
AT SFT DWN SW
[On/Off] Displays [ON/OFF] condition of manual mode shift down switch.
ST SFT UP SW
[On/Off] Displays [ON/OFF] condition of paddle shift up switch.
ST SFT DWN SW
[On/Off] Displays [ON/OFF] condition of paddle shift down switch.
PKB SW
[On/Off] Displays [ON/OFF] condition of parking brake switch.
BUCKLE SW
[ON/OFF] Status of seat belt buckle switch (LH).
BRAKE OIL SW
[On/Off] Displays [ON/OFF] condition of brake fluid level switch.
PASS BUCKLE SW
[ON/OFF] Status of passenger seat belt buckle switch (RH).
DISTANCE
[Mi] or [km] Displays distance to empty.
OUTSIDE TEMP
[ ° F or °C] Displaysthe ambient air temperature which is input from the ambient sensor.
FUEL LOW SIG
[On/Off] Displays [ON/OFF] condition
of low-fuel warning signal.
BUZZER
[On/Off] XBuzzer status (in the combination meter) is detected from the buzzer output signal
received from each unit via CAN communication and the warning output condition
of the combination meter.
BSW IND
[ON/OFF] Displays [ON/OFF] condition of BSW warning indicator message in the informa-
tion display.
Display item [Unit]
MAIN
SIGNALS Description
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MWI
DIAGNOSIS SYSTEM (METER)MWI-21
< SYSTEM DESCRIPTION >
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Special menu
W/L ON HISTORY
• “W/L ON HISTORY” indicates the “TIME” when the warning/ indicator lamp is turned on.
• The “TIME” above is:
- 0: The condition that the warning/indicator lamp has been turned on 1 or more times after starting the engine
and waiting for 30 seconds.
- 1 - 39: The number of times the engi ne was restarted after the 0 condition.
- NO W/L ON HISTORY: No warning/indicator lamp history is stored.
NOTE:
• W/L ON HISTORY is not stored for approximately 30 seconds after the engine starts.
• Brake warning lamp does not store any history when the parking brake is applied or the brake fluid level gets
low.
LDW IND
[ON/OFF] Displays [ON/OFF] condition of LDW warning indicator message in the informa-
tion display.
TPMS MALF
[ON/OFF] Displays [ON/OFF] condition of TPMS warning indicator.
Display item [Unit]
MAIN
SIGNALS Description
Display item Description
W/L ON HISTORY Lighting history of warning lamp and indicator lamp can be checked.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM