CO.pdf

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ENGINE
SECTION
ENGINE COOLING SYSTEM
CO
A
CO
C
D
CONTENTS
MR16DDT
PRECAUTION ..............................................
4
.
PRECAUTIONS ..................................................
4
.
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ..................................................................
4
.
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect ....................................
4
.
E
REMOVAL AND INSTALLATION ..............
17
.
RADIATOR ........................................................
17
Exploded View ........................................................
17
.
Removal and Installation ........................................
17
.
Inspection ...............................................................
19
.
F
G
COOLING FAN ..................................................
20
Exploded View ........................................................
20
.
Removal and Installation ........................................
20
.
Disassembly and Assembly ....................................
20
.
Inspection ...............................................................
21
.
H
PREPARATION ...........................................
6
.
PREPARATION ..................................................
6
.
Commercial Service Tools ......................................
6
.
I
WATER PUMP ..................................................
22
Exploded View ........................................................
22
.
Removal and Installation ........................................
22
.
Inspection ...............................................................
22
.
J
SYSTEM DESCRIPTION .............................
7
.
DESCRIPTION ...................................................
7
.
Engine Cooling System ............................................
7
.
Engine Cooling System Schematic ..........................
8
.
THERMOSTAT ..................................................
24
Exploded View ........................................................
24
.
Removal and Installation ........................................
24
.
Inspection ...............................................................
25
.
K
L
SYMPTOM DIAGNOSIS ..............................
9
.
OVERHEATING CAUSE ANALYSIS .................
9
.
Troubleshooting Chart ..............................................
9
.
WATER OUTLET ..............................................
26
Exploded View ........................................................
26
.
Removal and Installation ........................................
26
.
Inspection ...............................................................
27
.
M
PERIODIC MAINTENANCE ........................
11
.
ENGINE COOLANT ..........................................
11
.
Inspection ...............................................................
11
.
Draining ..................................................................
11
.
Refilling ..................................................................
12
.
Flushing ..................................................................
13
.
SERVICE DATA AND SPECIFICATIONS
(SDS) ...........................................................
29
.
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
29
Periodical Maintenance Specification .....................
29
.
Radiator ..................................................................
29
.
Thermostat .............................................................
29
.
Water Control Valve ...............................................
29
.
N
O
RADIATOR ........................................................
15
.
RADIATOR CAP .......................................................
15
.
RADIATOR CAP : Inspection .................................
15
.
RADIATOR ...............................................................
15
.
RADIATOR : Inspection .........................................
15
.
P
HR16DE
PRECAUTION .............................................
30
.
PRECAUTIONS .................................................
30
CO-1
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ................................................................
30
.
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect .................................
30
.
Removal and Installation ........................................
52
.
Inspection ...............................................................
52
.
SERVICE DATA AND SPECIFICATIONS
(SDS) ..........................................................
54
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
54
.
Periodical Maintenance Specification ....................
54
.
Radiator .................................................................
54
.
Thermostat .............................................................
54
.
Heater Thermostat (CVT models) ..........................
54
.
Water Control Valve ...............................................
54
.
PREPARATION ..........................................
32
.
PREPARATION ................................................
32
.
Commercial Service Tools ...................................
32
.
SYSTEM DESCRIPTION ...........................
33
.
DESCRIPTION ..................................................
33
.
Engine Cooling System .........................................
33
.
Engine Cooling System Schematic .......................
34
.
K9K
PRECAUTION ............................................
55
PRECAUTIONS ................................................
55
.
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ................................................................
55
.
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect ..................................
55
.
Precaution for Liquid Gasket ..................................
56
.
SYMPTOM DIAGNOSIS ............................
35
.
OVERHEATING CAUSE ANALYSIS ...............
35
.
Troubleshooting Chart ...........................................
35
.
PERIODIC MAINTENANCE .......................
37
.
ENGINE COOLANT ..........................................
37
.
Inspection ..............................................................
37
.
Draining .................................................................
37
.
Refilling ..................................................................
38
.
Flushing .................................................................
39
.
PREPARATION ..........................................
57
PREPARATION ................................................
57
.
Special Service Tool ..............................................
57
.
RADIATOR .......................................................
40
.
RADIATOR CAP ......................................................
40
.
RADIATOR CAP : Inspection ................................
40
.
RADIATOR ...............................................................
40
.
RADIATOR : Inspection .........................................
40
.
SYSTEM DESCRIPTION ...........................
58
COOLING SYSTEM ..........................................
58
.
Cooling Circuit ........................................................
58
.
BASIC INSPECTION ..................................
59
RADIATOR .......................................................
59
.
Inspection ...............................................................
59
.
REMOVAL AND INSTALLATION ..............
42
.
RADIATOR .......................................................
42
.
Exploded View .......................................................
42
.
Removal and Installation .......................................
42
.
Inspection ..............................................................
45
.
SYMPTOM DIAGNOSIS ............................
60
OVERHEATING CAUSE ANALYSIS ...............
60
.
Troubleshooting Chart ...........................................
60
.
COOLING FAN .................................................
46
.
Exploded View .......................................................
46
.
Removal and Installation .......................................
46
.
Disassembly and Assembly ...................................
47
.
Inspection ..............................................................
47
.
PERIODIC MAINTENANCE .......................
62
ENGINE COOLANT ..........................................
62
.
Inspection ...............................................................
62
.
Draining ..................................................................
62
.
Refilling ..................................................................
63
.
Flushing .................................................................
63
.
WATER PUMP ..................................................
48
.
Exploded View .......................................................
48
.
Removal and Installation .......................................
48
.
Inspection ..............................................................
49
.
RESERVOIR TANK CAP .................................
65
.
Inspection ...............................................................
65
.
THERMOSTAT .................................................
50
.
Exploded View .......................................................
50
.
Removal and Installation .......................................
50
.
Inspection ..............................................................
51
.
REMOVAL AND INSTALLATION ..............
66
RADIATOR .......................................................
66
.
Exploded View .......................................................
66
.
Removal and Installation ........................................
66
.
WATER OUTLET ..............................................
52
.
Exploded View .......................................................
52
.
CO-2
COOLING FAN ..................................................
68
.
Exploded View .......................................................
68
.
Removal and Installation ........................................
68
.
WATER OUTLET ..............................................
75
Exploded View ........................................................
75
.
Removal and Installation ........................................
75
.
A
WATER PUMP ..................................................
70
.
Exploded View .......................................................
70
.
Removal and Installation ........................................
70
.
Inspection ...............................................................
70
.
SERVICE DATA AND SPECIFICATIONS
CO
(SDS) ...........................................................
76
.
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
76
Periodical Maintenance Specification .....................
76
.
Radiator ..................................................................
76
.
Thermostat .............................................................
76
.
C
THERMO PLUNGER UNIT ...............................
72
.
Exploded View .......................................................
72
.
Removal and Installation ........................................
72
.
D
THERMOSTAT ..................................................
74
.
Inspection ...............................................................
74
.
E
F
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CO-3
PRECAUTIONS
< PRECAUTION >
[MR16DDT ]
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006628091
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.
The vehicle may be equipped with a passenger air bag deactivation switch. Because no rear seat exists where
a rear-facing child restraint can be placed, the switch is designed to turn off the passenger air bag so that a
rear-facing child restraint can be used in the front passenger seat. The switch is located in the center of the
instrument panel, near the ashtray. When the switch is turned to the ON position, the passenger air bag is
enabled and could inflate for certain types of collision. When the switch is turned to the OFF position, the pas-
senger air bag is disabled and will not inflate. A passenger air bag OFF indicator on the instrument panel lights
up when the passenger air bag is switched OFF. The driver air bag always remains enabled and is not affected
by the passenger air bag deactivation switch.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
• The vehicle may be equipped with a passenger air bag deactivation switch which can be operated by
the customer. When the passenger air bag is switched OFF, the passenger air bag is disabled and
will not inflate. When the passenger air bag is switched ON, the passenger air bag is enabled and
could inflate for certain types of collision. After SRS maintenance or repair, make sure the passenger
air bag deactivation switch is in the same position (ON or OFF) as when the vehicle arrived for ser-
vice.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation after Battery Disconnect
INFOID:0000000006628096
NOTE:
• Before removing and installing any control units, first turn the ignition switch to the LOCK position, then dis-
connect both battery cables.
• After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.
For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.
CO-4
PRECAUTIONS
[MR16DDT ]
< PRECAUTION >
OPERATION PROCEDURE
A
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
CO
2. Turn the ignition switch to ACC position.
(At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.
C
4. Perform the necessary repair operation.
5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the ignition switch from ACC position to ON position, then to LOCK position. (The steering wheel will lock
D
when the ignition switch is turned to LOCK position.)
6. Perform self-diagnosis check of all control units using CONSULT-III.
E
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CO-5

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