Nissan Pathfinder (2012 year). Manual — part 132
WATER PUMP
CO-53
< REMOVAL AND INSTALLATION >
[VK56DE]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
Handle water pump vane so that it does not contact any other parts.
INSPECTION AFTER REMOVAL
• Visually check that there is no significant dirt or rust on the water
pump body and vane.
• Check that the vane shaft is not loose and turns smoothly when
rotated by hand.
• Replace the water pump, if necessary.
INSTALLATION
Installation is in the reverse order of removal.
• After installation bleed the air from the cooling system. Refer to
CO-42, "Changing Engine Coolant"
.
INSPECTION AFTER INSTALLATION
• Check for coolant leaks. Refer to
.
• Start and warm up engine. Visually check for coolant leaks. Repair as necessary.
KBIA2552E
August 2012
2012 Pathfinder
CO-54
< REMOVAL AND INSTALLATION >
[VK56DE]
THERMOSTAT AND WATER PIPING
THERMOSTAT AND WATER PIPING
Exploded View
INFOID:0000000007357939
Removal and Installation
INFOID:0000000007357940
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter
of a turn to release built-up pressure. Carefully remove radiator cap by turning it all the way.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
Removal of Thermostat
1. Remove engine under cover. Refer to
EXT-15, "Removal and Installation"
.
2. Partially drain engine coolant from the radiator. Refer to
CO-42, "Changing Engine Coolant"
.
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on drive belts.
3. Remove the engine room cover (if equipped). Refer to
EM-163, "Removal and Installation"
.
4. Remove the air duct and resonator assembly. Refer to
EM-164, "Removal and Installation"
KBIA2501E
1.
Heater pipe
2.
Gasket
3.
Water outlet
4.
Gasket
5.
O-ring
6.
O-ring
7.
Thermostat housing
8.
Rubber ring
9.
Thermostat
10.
Water inlet
11.
Water suction hose
12. Water suction pipe
13.
Gasket
14. Heater pipe
August 2012
2012 Pathfinder
THERMOSTAT AND WATER PIPING
CO-55
< REMOVAL AND INSTALLATION >
[VK56DE]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
5. Disconnect the water suction hose from the water inlet.
6. Remove the water inlet and thermostat.
Removal of Thermostat Housing, Water Outlet and Heater Pipe
1. Remove the intake manifold. Refer to
EM-165, "Removal and Installation"
2. Remove the thermostat. Refer to
3. Remove upper radiator hose.
4. Remove the thermostat housing, water outlet and heater pipe.
INSPECTION AFTER REMOVAL
1. Check valve seating condition at room temperature. It should seat tightly.
2. Check valve operation.
• Place a thread so that it is caught in the valve of the thermo-
stat. Immerse fully in a container 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 lift amount.
NOTE:
The full-open lift amount standard temperature is the reference
value.
• After checking the full-open lift amount, lower the water tem-
perature and check the valve closing temperature.
If valve seating at measured values are out of standard range, replace water inlet and thermostat assembly.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Do not spill engine coolant in engine room. Use a shop cloth to absorb engine coolant.
Installation of Thermostat
• Install the thermostat with the whole circumference of each flange
part fit securely inside the rubber ring as shown.
• Install the thermostat with the jiggle valve facing upwards.
Installation of Water Outlet Pipe and Heater Pipe
Apply mild soap to the O-ring before inserting water pipe or heater pipes.
CAUTION:
Do not reuse O-rings.
INSPECTION AFTER INSTALLATION
• Check for coolant leaks. Refer to
.
• Start and warm up the engine. Visually check for coolant leaks. Repair as necessary.
SLC252B
Thermostat
Standard
Valve opening temperature
Refer to
Full-open lift amount
Refer to
Valve closing temperature
Refer to
KBIA2502E
August 2012
2012 Pathfinder
CO-56
< SERVICE DATA AND SPECIFICATIONS (SDS)
[VK56DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and Limit
INFOID:0000000007357941
ENGINE COOLANT CAPACITY (APPROXIMATE)
Unit: (US qt, Imp qt)
RADIATOR
Unit: kPa (kg/cm
2
, psi)
THERMOSTAT
Engine coolant capacity (With reservoir tank at "MAX" level)
13.4 (14-1/8, 11-3/4)
Reservoir cap relief pressure
Standard
98 - 118 (1.0- 1.2, 14 - 17)
Test pressure
137 (1.4, 20)
Valve opening temperature
80 - 84
°
C (176 - 183
°
F)
Full-open lift amount
More than 10 mm/95
°
C (0.39 in/203
°
F)
Valve closing temperature
77
°
C (171
°
F) or higher
August 2012
2012 Pathfinder
DEF-1
DRIVER CONTROLS
C
D
E
F
G
H
I
J
K
M
SECTION
DEF
A
B
DEF
N
O
P
CONTENTS
DEFOGGER
BASIC INSPECTION . . . . . . . . .
DIAGNOSIS AND REPAIR WORKFLOW . . ..
Repair Work Flow . . . . . . . . . . . . . ..
SYSTEM DESCRIPTION . . . . . . . ..
REAR WINDOW DEFOGGER SYSTEM . . . .
System Diagram . . . . . . . . . . . . . ....
System Description . . . . . . . . . . . . ...
Component Parts Location . . . . . . . . . ....
Component Description . . . . . . . . . . .....
DIAGNOSIS SYSTEM (BCM) . . . . . . . .
COMMON ITEM . . . . . . . . . . . . . . ...
COMMON ITEM : CONSULT Function (BCM -
COMMON ITEM) . . . . . . . . . . . . . ...
REAR WINDOW DEFOGGER . . . . . . . . .....
REAR WINDOW DEFOGGER : CONSULT Func-
tion (BCM - REAR DEFOGGER) . . . . . . . ..
DTC/CIRCUIT DIAGNOSIS . . . . . . ..
REAR WINDOW DEFOGGER SWITCH . . . .
Description . . . . . . . . . . . . . . . ....
Component Function Check . . . . . . . . . ..
Diagnosis Procedure A/C and AV Switch Assem-
bly . . . . . . . . . . . . . . . . . . . ..
Diagnosis Procedure Front Air Control . . . . .....
REAR WINDOW DEFOGGER RELAY . . . ..
Description . . . . . . . . . . . . . . . ..
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
REAR WINDOW DEFOGGER POWER SUP-
PLY AND GROUND CIRCUIT . . . . . . .
Description . . . . . . . . . . . . . . . ..
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Component Inspection . . . . . . . . . . .
DOOR MIRROR DEFOGGER LH . . . . . .
Description . . . . . . . . . . . . . . . ...
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Component Inspection . . . . . . . . . . . .
DOOR MIRROR DEFOGGER RH . . . . . .
Description . . . . . . . . . . . . . . . ...
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Component Inspection . . . . . . . . . . . .
ECU DIAGNOSIS INFORMATION . . . ..
BCM (BODY CONTROL MODULE) . . . . .
Reference Value . . . . . . . . . . . . . ..
Terminal Layout . . . . . . . . . . . . . ...
Physical Values . . . . . . . . . . . . . ...
WIRING DIAGRAM . . . . . . . . . ..
REAR WINDOW DEFOGGER . . . . . . ..
Wiring Diagram . . . . . . . . . . . . . .
SYMPTOM DIAGNOSIS . . . . . . . ..
REAR WINDOW DEFOGGER AND DOOR
MIRROR DEFOGGER DO NOT OPERATE. .
Diagnosis Procedure . . . . . . . . . . . ...
REAR WINDOW DEFOGGER DOES NOT
OPERATE BUT BOTH OF DOOR MIRROR
DEFOGGER OPERATE. . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
DRIVER SIDE DOOR MIRROR DEFOGGER
DOES NOT OPERATE. . . . . . . . . . .
August 2012
2012 Pathfinder
DEF-2
Diagnosis Procedure . . . . . . . . . . . ..
PASSENGER SIDE DOOR MIRROR DEFOG-
GER DOES NOT OPERATE. . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ..
PRECAUTION . . . . . . . . . . . .
PRECAUTIONS . . . . . . . . . . . . .
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect . . . . . . . . ..
Handling for Adhesive and Primer . . . . . . ..
REMOVAL AND INSTALLATION . . . ..
REAR WINDOW DEFOGGER . . . . . . ...
Filament Check . . . . . . . . . . . . . ...
Filament Repair . . . . . . . . . . . . . ...
August 2012
2012 Pathfinder
DIAGNOSIS AND REPAIR WORKFLOW
DEF-3
< BASIC INSPECTION >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Repair Work Flow
INFOID:0000000007355311
DETAILED FLOW
1.
LISTEN TO CUSTOMER COMPLAINT
Listen to customer complaint. Get detailed information about the conditions and environment when the symp-
tom occurs.
>> GO TO 2
2.
VERIFY THE SYMPTOM WITH OPERATIONAL CHECK
Verify the symptom with operational check.
>> GO TO 3
3.
GO TO APPROPRIATE TROUBLE DIAGNOSIS
Go to appropriate trouble diagnosis.
>> GO TO 4
4.
REPAIR OR REPLACE
Repair or replace the specific parts.
>> GO TO 5
5.
FINAL CHECK
Final check.
Is inspection result normal?
YES
>> Inspection End
NO
>> Refer to
GI-37, "Intermittent Incident"
.
August 2012
2012 Pathfinder
DEF-4
< SYSTEM DESCRIPTION >
REAR WINDOW DEFOGGER SYSTEM
SYSTEM DESCRIPTION
REAR WINDOW DEFOGGER SYSTEM
System Diagram
INFOID:0000000007355312
System Description
INFOID:0000000007355313
Operation Description
• When rear window defogger switch is turned ON while ignition switch is ON, the A/C and AV switch assem-
bly (with auto A/C) or front air control (without auto A/C) transmits rear window defogger switch signal to
BCM.
• BCM transmits rear window defogger control signal to IPDM E/R and display unit (with auto A/C only) via
CAN communication when rear window defogger operates.
• IPDM E/R turns rear window defogger relay and heated mirror relay (if equipped) ON when rear window
defogger switch signal is received.
• Rear window defogger and door mirror defogger (if equipped) are supplied with power and operate when
rear window defogger relay and heated mirror relay (if equipped) turn ON.
• Rear window defogger ON is displayed when signal is received.
Timer function
• BCM turns rear window defogger relay and heated mirror relay (if equipped) ON for approximately 15 min-
utes when rear window defogger switch is turned ON while ignition switch is ON. It makes rear window
defogger and door mirror defogger (if equipped) operate.
• Timer is canceled after pressing rear window defogger switch again during timer operation. Then BCM turns
rear window defogger relay and heated mirror relay (if equipped) OFF. The same reaction also occurs during
timer operation, if the ignition switch is turned OFF.
INPUT/OUTPUT SIGNAL CHART
ALLIA1046GB
Switch
Input signal to BCM
BCM function
Actuator
Rear window defogger switch
Defogger switch signal
Rear window defogger & door mirror
defogger (if equipped) control
Rear window defogger
Door mirror defogger (if
equipped)
Ignition switch
Ignition signal
August 2012
2012 Pathfinder
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст