2007 NISSAN TIIDA heating

CO-48
< ON-VEHICLE REPAIR >[MR18DE]
WATER OUTLET AND WATER CONTROL VALVE
 Place a thread (A) so that it is caught in the valves of water control
valve (1). Immerse fully in a container (B) filled with water. Heat
while stirring.
 The valve opening temperature is the temperature at which the
valve opens and falls from the thread.
 Continue heating. Check the full open valve lift amount.
NOTE:
The maximum valve lift amount standard temperature for water
control valve is the reference value.
 After checking the maximum valve lift amount, lower the water
temperature and check the valve closing temperature.
 If out of the specification, replace water control valve.
INSTALLATION
Installation is in the reverse order of removal.
Water Control Valve
CAUTION:
Replace the rubber ring with a new one.
 Install water control valve while making rubber ring (1) groove fit to
water control valve flange (A) around the whole circumference.
 While the mark (A) points to up, install water control valve (2) with
frame center (B) facing straight upward into water outlet (1).
Water Outlet
Install the water control valve to the cylinder head without displacing the valve from the valve position.
Water Hoses
Valve opening temperature 93.5 - 96.5°C (200 - 206°F)
Maximum valve lift 8 mm/ 108°C (0.315 in/ 226°F)
Valve closing temperature 90°C (194°F)
PBIC3314J
PBIC3317J
PBIC4700E

OVERHEATING CAUSE ANALYSIS
CO-53
< SYMPTOM DIAGNOSIS >[K9K]
C
D
E
F
G
H
I
J
K
L
MA
CO
N
P O
SYMPTOM DIAGNOSIS
OVERHEATING CAUSE ANALYSIS
Troubleshooting ChartINFOID:0000000001381581
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn timing belt
— Thermostat stuck closed —
Damaged finsDust contamination or pa-
per clogging
Mechanical damage
Clogged radiator cooling
tubeExcess foreign material
(rust, dirt, sand, etc.)
Reduced air flowCooling fan does not oper-
ate
Fan assembly — High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud — — —
Improper coolant mixture
ratio———
Poor coolant quality — — —
Insufficient coolantCoolant leaksCooling hoseLoose clamp
Cracked hose
Water pump Poor sealing
Reservoir tank capLoose
Poor sealing
RadiatorO-ring for damage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tankExhaust gas leaks into cool-
ing systemCylinder head deterioration
Cylinder head gasket deteri-
oration

CO-54
< SYMPTOM DIAGNOSIS >[K9K]
OVERHEATING CAUSE ANALYSIS
Except cool-
ing system
parts mal-
function— Overload on engineAbusive drivingHigh engine rpm under no
load
Driving in low gear for ex-
tended time
Driving at extremely high
speed
Powertrain system malfunc-
tion
— Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flowBlocked bumper —
— Blocked radiator grilleInstalled car brassiere
Mud contamination or paper
clogging
Blocked radiator —
Blocked condenser
—
Installed large fog lamp Symptom Check items

WATER OUTLET AND THERMOSTAT ASSEMBLY
CO-69
< ON-VEHICLE REPAIR >[K9K]
C
D
E
F
G
H
I
J
K
L
MA
CO
N
P O
 Place a thread so that it is caught in the valves of the thermostat.
Immerse fully in a container filled with water. Heat while stirring.
(The example shows the thermostat.)
 The valve opening temperature is the temperature at which the
valve opens and falls from the thread.
 Continue heating. Check the full-open lift amount.
 After checking the full-open lift amount, lower the water tempera-
ture and check the valve closing temperature.
 If the measured value is out of the standard value or unusual valve
seating condition is found, replace water inlet and thermostat
assembly.
INSPECTION AFTER INSTALLATION
 Check for engine coolant leaks using suitable tools. Refer to CO-58, "Inspection".
E1BIA0038ZZ
Temperature °C (°F)
Start of opening 89 (192)
End of opening 97 - 101 (207 - 214)

DEF-8
< FUNCTION DIAGNOSIS >
REAR WINDOW DEFOGGER SYSTEM
*: With door mirror defoggerFront air control (rear window
defogger switch) The rear window defogger switch is turned ON.
 Turns the indicator lamp ON when detecting the operation of rear window defogger.
Rear window defogger Heats the heating wire with the power supply from the rear window defogger relay to prevent
the rear window from fogging up.
Door mirror defogger
* Heats the heating wire with the power supply from the rear window defogger relay to prevent
the door mirror from fogging up.

DEF-14
< COMPONENT DIAGNOSIS >
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
DescriptionINFOID:0000000001697555
Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window
from fogging up.
Component Function CheckINFOID:0000000001697556
1. CHECK REAR WINDOW DEFOGGER
Check that the heating wire of rear window defogger is heated when turning the rear window defogger switch
ON.
Is the inspection result normal?
YES >> Rear window defogger is OK.
NO >> Refer to DEF-14, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001697557
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between rear window defogger connector and
ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> GO TO 3
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear window defogger.
3. Check continuity between rear window defogger connector and
ground.
Is the inspection result normal?
YES >> GO TO 5
NO >> Repair or replace harness.
3. CHECK HARNESS CONTINUITY 1
Te r m i n a l s
Condition of rear
window
defogger switchVoltage (V)
(Approx.) (+)
(–) Rear window
defogger
connectorTe r m i n a l
B53 1 GroundON Battery voltage
OFF 0
ALLIA0177ZZ
Rear window defogger connector Terminal
GroundContinuity
B54 2 Yes
ALLIA0178ZZ

DEF-16
< COMPONENT DIAGNOSIS >
DRIVER SIDE DOOR MIRROR DEFOGGER
DRIVER SIDE DOOR MIRROR DEFOGGER
DescriptionINFOID:0000000001697559
Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror
from fogging up.
Component Function CheckINFOID:0000000001697560
1. CHECK DOOR MIRROR DEFOGGER LH
Check that heating wire of door mirror defogger LH is heated when turning the rear window defogger switch
ON.
Is the inspection result normal?
YES >> Door mirror defogger is OK.
NO >> Refer to DEF-16, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001697561
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror LH.
3. Turn ignition switch ON.
4. Check voltage between door mirror LH connector and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace harness.
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between door mirror LH connector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK DOOR MIRROR DEFOGGER LH
Check door mirror defogger LH.
Refer to DEF-17, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace door mirror. Refer to XX-XX, "*****"
.
4. CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Te r m i n a l s
Condition of
rear window
defogger
switchVoltage (V)
(Approx.) (+)
(–)
Door mirror LH
connectorTe r m i n a l
D4 1 GroundON Battery voltage
OFF 0
ALLIA0181ZZ
Door mirror LH connector Terminal
GroundContinuity
D4 2 Yes
ALLIA0184ZZ

DEF-18
< COMPONENT DIAGNOSIS >
PASSENGER SIDE DOOR MIRROR DEFOGGER
PASSENGER SIDE DOOR MIRROR DEFOGGER
DescriptionINFOID:0000000001697563
Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror
from fogging up.
Component Function CheckINFOID:0000000001697564
1.CHECK DOOR MIRROR DEFOGGER RH
Check that the heating wire of door mirror defogger RH is heated when turning the rear window defogger
switch ON.
Is the inspection result normal?
YES >> Door mirror defogger RH is OK.
NO >> Refer to DEF-18, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001697565
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror RH.
3. Turn ignition switch ON.
4. Check voltage between door mirror RH connector and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace harness.
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between door mirror RH connector and
ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK PASSENGER SIDE DOOR MIRROR DEFOGGER
Check door mirror defogger RH.
Refer to DEF-19, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace door mirror RH. Refer to XX-XX, "*****"
.
4. CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Te r m i n a l s
Condition of rear
window defogger
switchVoltage (V)
(Approx.) (+)
(–)
Door mirror RH
connectorTe r m i n a l
D107 1 GroundON Battery voltage
OFF 0
ALLIA0181ZZ
Door mirror RH connector Terminal
GroundContinuity
D107 2 Yes
ALLIA0184ZZ