2008 NISSAN TEANA engine coolant

HEATER & COOLING UNIT ASSEMBLY
VTL-95
< ON-VEHICLE REPAIR >[WITH 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
MA
B
VTL
N
O
P
Removal and InstallationINFOID:0000000003940515
REMOVAL
1. Collect the refrigerant with refrigerant collecting equipment (for HFC134a).
2. Drain engine coolant from cooling system. Refer to CO-8, "
Draining".
3. Remove mounting bolt (A), and then disconnect low-pressure
pipe (1) and high-pressure pipe (2) from the expansion valve.
CAUTION:
Cap or wrap the joint of the A/C piping and expansion valve
with suitable material such as vinyl tape to avoid the entry
of air.
4. Remove air cleaner case and air duct. Refer to EM-26, "
Exploded View"
5. Remove clamps (A), and then disconnect heater hoses (1).
CAUTION:
 Some coolant may spill when heater hoses are discon-
nected. Wipe them off with wastes.
 Close the coolant inlet/outlet on the heater core and
heater hoses with wastes.
6. Remove instrument panel assembly. Refer to IP-11, "
Exploded View".
7. Remove mounting nuts (A), and then remove instrument stay
(1).
49. Defroster door 50. Air mix door (Slide door)
Refer to GI-4, "
Components" for symbols in the figure.
JPIIA0915ZZ
JPIIA0916ZZ
JPIIA0909ZZ

HEATER & COOLING UNIT ASSEMBLY
VTL-97
< ON-VEHICLE REPAIR >[WITH 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
MA
B
VTL
N
O
P
16. Remove floor duct 1 (left and right) (1) and rear ventilator duct 1
(2), and then remove heater & cooling unit assembly (3).
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
 Replace O-rings with new ones. Then apply compressor oil to them when installing.
 Check for leakages when recharging refrigerant.
NOTE:
 Refer to CO-9, "
Refilling" when filling radiator with engine coolant.
 Charge the refrigerant.
JPIIA0921ZZ

VTL-102
< ON-VEHICLE REPAIR >[WITH 7 INCH DISPLAY]
HEATER CORE
Removal and Installation
INFOID:0000000003894516
REMOVAL
1. Remove heater & cooling unit assembly. Refer to VTL-93, "Exploded View".
2. Remove mounting screws (A), and then remove foot duct (left)
(1).
3. Remove heater pipe grommet (1).
4. Remove mounting screw (A), and then remove heater pipe sup-
port (2).
5. Remove mounting screws (B), and then remove heater pipe
cover (3).
6. Slide heater core (1) to leftward (as shown in the figure).
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
 Replace O-rings with new ones. Then apply compressor oil to them when installing.
 Check for refrigerant leakage when charging refrigerant.
NOTE:
 Refer to CO-9, "
Refilling" when filling radiator with engine coolant.
 Charge the refrigerant.
37. Defroster door link 38. Foot door link 39. Max. cool door lever
40. Foot door lever 41. Defroster door lever 42. Adapter case
43. Distributor lower case 44. Ventilator door 45. Intake sensor
46. Intake sensor bracket 47. Foot door 48. Max. cool door
49. Defroster door 50. Air mix door (Slide door)
Refer to GI-4, "
Components" for symbols in the figure.
JPIIA0925ZZ
JPIIA0926ZZ
JPIIA0927ZZ

WCS
DIAGNOSIS SYSTEM (METER)
WCS-13
< FUNCTION DIAGNOSIS >
C
D
E
F
G
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K
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MB A
O
P
W TEMP METER
[°C] XValue of engine coolant temperature signal is received from ECM via CAN com-
munication.
NOTE:
215 is displayed when the malfunction signal is input.
ABS W/L
[On/Off]Status of ABS warning lamp detected from ABS warning lamp signal is received
from ABS actuator and electric unit (control unit) via CAN communication.
VDC/TCS IND
[On/Off]Status of VDC OFF indicator lamp detected from VDC OFF indicator lamp signal
is received from ABS actuator and electric unit (control unit) via CAN communica-
tion.
SLIP IND
[On/Off]Status of SLIP indicator lamp detected from slip indicator lamp signal received
from ABS actuator and electric unit (control unit) via CAN communication.
BRAKE W/L
[On/Off]Status of brake warning lamp detected from brake warning lamp signal is received
from ABS actuator and electric unit (control unit) via CAN communication.
NOTE:
Displays “Off” if the brake warning lamp is illuminated when the valve check starts,
the parking brake switch is turned ON or the brake fluid level switch is turned ON.
DOOR W/L
[On/Off]Status of door warning detected from door switch signal received from BCM via
CAN communication.
TRUNK/GLAS-H
[On/Off]Status of trunk warning detected from trunk switch signal received from BCM via
CAN communication.
HI-BEAM IND
[On/Off]Status of high beam indicator lamp detected from high beam request signal is re-
ceived from BCM via CAN communication.
TURN IND
[On/Off]Status of turn indicator lamp detected from turn indicator signal is received from
BCM via CAN communication.
FR FOG IND
[On/Off]Status of front fog light indicator lamp detected from front fog light request signal
is received from BCM via CAN communication.
RR FOG IND
[On/Off]Status of rear fog light indicator lamp detected from rear fog light request signal is
received from BCM via CAN communication.
LIGHT IND
[On/Off]Status of light indicator lamp detected from position light request signal is received
from BCM via CAN communication.
OIL W/L
[On/Off]Status of oil pressure warning lamp detected from oil pressure switch signal is re-
ceived from BCM via CAN communication.
MIL
[On/Off] Status of malfunction indicator lamp detected from malfunctioning indicator lamp
signal is received from ECM via CAN communication.
CRUISE IND
[On/Off]Status of CRUISE indicator detected from ASCD status signal is received from
ECM via CAN communication.
SPORT IND
[On/Off]Status of SPORT indicator detected from sport mode switch signal is received
from control device.
4WD W/L
[On/Off]This item is displayed, but cannot be monitored.
4WD LOCK IND
[On/Off]This item is displayed, but cannot be monitored.
FUEL W/L
[On/Off]Low-fuel warning lamp status detected by the identified fuel level.
WASHER W/L
[On/Off]This item is displayed, but cannot be monitored.
KEY G/Y W/L
[On/Off]Status of key warning lamp (G/Y) detected from key warning signal is received
from BCM via CAN communication.
AFS OFF IND
[On/Off]This item is displayed, but cannot be monitored.
LCD
[B&P N, B&P I, ID NG, ROTAT, SFT
P, INSRT, BATT, NO KY,OUTKY, LK
WN]Displays status of Intelligent Key system warning detected from meter display sig-
nal is received from BCM via CAN communication.
Display item [Unit]MAIN
SIGNALSDescription

WCS-26
< ECU DIAGNOSIS >
COMBINATION METER
ECU DIAGNOSIS
COMBINATION METER
Reference ValueINFOID:0000000003838730
VALUES ON THE DIAGNOSIS TOOL
Monitor Item Condition Value/Status
SPEED METER
[km/h]Ignition switch
ONWhile drivingEquivalent to speedometer reading
NOTE:
655.35 is displayed when the malfunc-
tion signal is received
SPEED OUTPUT
[km/h]Ignition switch
ONWhile drivingEquivalent to speedometer reading
NOTE:
655.35 is displayed when the malfunc-
tion signal is received
ODO OUTPUT
[km/h or mph]Ignition switch
ON—Equivalent to odometer reading in
combination meter
TACHO METER
[rpm]Ignition switch
ONWhile drivingEquivalent to tachometer reading
NOTE:
8191.875 is displayed when the mal-
function signal is received
FUEL METER
[lit]Ignition switch
ON— Values according to fuel level
W TEMP METER
[°C]Ignition switch
ON—Values according to engine coolant
temperature
NOTE:
215 is displayed when the malfunction
signal is input
ABS W/LIgnition switch
ONABS warning lamp ON On
ABS warning lamp OFF Off
VDC/TCS INDIgnition switch
ONVDC OFF indicator lamp ON On
VDC OFF indicator lamp OFF Off
SLIP INDIgnition switch
ONSLIP Indicator lamp ON On
SLIP indicator lamp OFF Off
BRAKE W/LIgnition switch
ONBrake warning lamp ON On
Brake warning lamp OFF Off
DOOR W/LIgnition switch
ONDoor warning ON On
Door warning OFF Off
TRUNK/GLAS-HIgnition switch
ONTrunk warning ON On
Trunk warning OFF Off
HI-BEAM INDIgnition switch
ONHigh-beam indicator lamp ON On
High-beam indicator lamp OFF Off
TURN INDIgnition switch
ONTurn signal indicator lamp ON On
Turn signal indicator lamp OFF Off
FR FOG INDIgnition switch
ONFront fog light indicator lamp ON On
Front fog light indicator lamp OFF Off
RR FOG INDIgnition switch
ONRear fog light indicator lamp ON On
Rear fog light indicator lamp OFF Off
LIGHT IND
Ignition switch
ONTail lamp indicator lamp ON On
Tail lamp indicator lamp OFF Off

WCS-40
< ECU DIAGNOSIS >
COMBINATION METER
DTC Index
INFOID:0000000003838733
Function Specifications
Speedometer
Reset to zero by suspending communication. Tachometer
Water temperature gauge
Illumination controlWhen suspending communication, changes to nighttime
mode.
Information displayDoor open warning
The display turns off by suspending communication. Trunk open warning
Parking brake release warning
Instantaneous fuel warning  When reception time of an abnormal signal is 2 seconds or
less, the last received datum is used for calculation to indi-
cate the result.
 When reception time of an abnormal signal is more than two
seconds, the last result calculated during normal condition
is indicated. Average fuel consumption
Average vehicle speed
Travel distance
Buzzer The buzzer turns off by suspending communication.
Warning lamp/indicator
lampABS warning lamp
The lamp turns on by suspending communication. VDC OFF indicator lamp
SLIP indicator lamp
Brake warning lamp
High beam indicator lamp
The lamp turns off by suspending communication. Front fog light indicator lamp
Rear fog light indicator lamp
Turn signal indicator lamp
Light indicator lamp
Oil pressure warning lamp
Malfunction indicator lamp
CRUISE indicator lamp
SPORT indicator lamp
Key warning lamp
Display contents of CONSULT-III Diagnostic item is detected when ... Refer to
CAN COMM CIRCUIT
[U1000]When combination meter is not transmitting or receiving CAN communication signal
for 2 seconds or more.MWI-37,
"Diagnosis
Procedure"
CONTROL UNIT (CAN)
[U1010]When detecting error during the initial diagnosis of the CAN controller of combina-
tion meter.MWI-38, "Diagnosis
Procedure"
VEHICLE SPEED
[B2205]The abnormal vehicle speed signal is input from the ABS actuator and electric unit
(control unit) for 2 seconds or more.MWI-39, "Diagnosis
Procedure"
ENGINE SPEED
[B2267]If ECM continuously transmits abnormal engine speed signals for 2 seconds or
more.MWI-40, "Diagnosis
Procedure"
WATER TEMP
[B2268]If ECM continuously transmits abnormal engine coolant temperature signals for 60
seconds or more.MWI-41, "Diagnosis
Procedure"

WW-76
< ECU DIAGNOSIS >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Reference ValueINFOID:0000000003941302
VALUES ON THE DIAGNOSIS TOOL
Monitor Item Condition Value/Status
MOTOR FAN REQ Engine idle speedChanges depending on engine
coolant temperature, air conditioner
operation status, vehicle speed,
etc.1/2/3/4
AC COMP REQ Engine runningA/C switch OFF Off
A/C switch ON
(Compressor is operating)On
TAIL&CLR REQLighting switch OFF Off
Lighting switch 1ST, 2ND, HI or AUTO (Light is illuminated) On
HL LO REQLighting switch OFF Off
Lighting switch 2ND HI or AUTO (Light is illuminated) On
HL HI REQLighting switch OFF Off
Lighting switch HI On
FR FOG REQLighting switch 2ND or
AUTO (Light is illuminated)Front fog lamp switch OFF Off
Front fog lamp switch ON On
FR WIP REQ Ignition switch ONFront wiper switch OFF Stop
Front wiper switch INT 1LOW
Front wiper switch LO Low
Front wiper switch HI Hi
WIP AUTO STOP Ignition switch ONFront wiper stop position STOP P
Any position other than front wiper
stop positionACT P
WIP PROT Ignition switch ONFront wiper operates normally Off
Front wiper stops at fail-safe opera-
tionBLOCK
IGN RLY1 -REQIgnition switch OFF or ACC Off
Ignition switch ON On
IGN RLYIgnition switch OFF or ACC Off
Ignition switch ON On
PUSH SWRelease the push-button ignition switch Off
Press the push-button ignition switch On
INTER/NP SW Ignition switch ONSelector lever in any position other
than P or NOff
Selector lever in P or N position On
ST RLY CONTIgnition switch ON Off
At engine cranking On
IHBT RLY -REQIgnition switch ON Off
At engine cranking On