2003 NISSAN ALMERA N16 TEMP GAUGE

DTC P1217 ENGINE OVER TEMPERATURE
EC-333
[QG (WITH EURO-OBD)]
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7.CHECK COOLING FAN MOTORS
Refer to EC-334, "
Component Inspection" .
OK or NG
OK >> GO TO 8.
NG >> Replace cooling fan motors.
8.CHECK SMART ENTRANCE CONTROL UNIT
Refer to EL-368.
OK or NG
OK >> GO TO 9.
NG >> Replace smart entrance control unit.
9.CHECK INTERMITTENT INCIDENT
Perform EC-109, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Main 12 Causes of OverheatingEBS00KBI
*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes. Engine Step Inspection item Equipment Standard Reference page
OFF 1
●Blocked radiator
●Blocked condenser
●Blocked radiator grille
●Blocked bumper
●Visual No blocking —
2
●Coolant mixture●Coolant tester 50 - 50% coolant mixture See MA-19.
3
●Coolant level●Visual Coolant up to MAX level
in reservoir tank and radi-
ator filler neckSee MA-7.
4
●Radiator cap●Pressure tester 59 - 98 kPa
(0.59 - 0.98 bar, 0.6 - 1.0
kg/cm
2 , 9 - 14 psi) (Limit)See LC-12.
ON*
25●Coolant leaks●Visual No leaks See LC-11.
ON*
26●Thermostat●Touch the upper and
lower radiator hosesBoth hoses should be hot See LC-15, and LC-16.
ON*
17●Cooling fan●CONSULT-II Operating See trouble diagnosis for
DTC P1217 (EC-324
).
OFF 8
●Combustion gas leak●Color checker chemical
tester 4 Gas analyzerNegative —
ON*
39●Coolant temperature
gauge●Visual Gauge less than 3/4
when driving—
●Coolant overflow to
reservoir tank●Visual No overflow during driving
and idlingSee MA-7.
OFF*
410●Coolant return from
reservoir tank to radia-
tor●Visual Should be initial level in
reservoir tankSee MA-7.
OFF 11
●Cylinder head●Straight gauge feeler
gauge0.1 mm (0.004 in) Maxi-
mum distortion (warping)SeeEM-57, "CYLINDER
HEAD" .
12
●Cylinder block and pis-
tons●Visual No scuffing on cylinder
walls or pistonSeeEM-70, "CYLINDER
BLOCK" .

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-435
[QG (WITHOUT EURO-OBD)]
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EC
To check the heated oxygen sensor 1 function, start engine in the Diagnostic Test Mode II and warm it up until
engine coolant temperature indicator points to the middle of the gauge.
Next run engine at about 2,000 rpm for about 2 minutes under no-load conditions. Then make sure that the MI
comes ON more than 5 times within 10 seconds with engine running at 2,000 rpm under no-load.

TROUBLE DIAGNOSIS
EC-443
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Basic InspectionEBS00KEU
1.INSPECTION START
1. Check service records for any recent repairs that may indicate a related malfunction, or a current need for
scheduled maintenance.
2. Open engine hood and check the following:
–Harness connectors for improper connections
–Wiring harness for improper connections, pinches and cut
–Vacuum hoses for splits, kinks and improper connections
–Hoses and ducts for leaks
–Air cleaner clogging
–Gasket
3. Confirm that electrical or mechanical loads are not applied.
–Headlamp switch is OFF.
–Air conditioner switch is OFF.
–Rear window defogger switch is OFF.
–Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature
indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.
5. Run engine at about 2,000 rpm for about 2 minutes under no-
load.
6. Make sure that no DTC is displayed with CONSULT-II or ECM.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2.REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding “Diagnostic Procedure”.
>> GO TO 3.
SEF983U
SEF976U
SEF977U

DTC P1217 ENGINE OVER TEMPERATURE
EC-605
[QG (WITHOUT EURO-OBD)]
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7.CHECK COOLING FAN MOTORS
Refer to EC-606, "
Component Inspection" .
OK or NG
OK >> GO TO 8.
NG >> Replace cooling fan motors.
8.CHECK SMART ENTRANCE CONTROL UNIT
Refer to EL-368.
OK or NG
OK >> GO TO 9.
NG >> Replace cooling fan motors.
9.CHECK INTERMITTENT INCIDENT
Perform EC-485, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Main 12 Causes of OverheatingEBS00KJ7
*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes. Engine Step Inspection item Equipment Standard Reference page
OFF 1
●Blocked radiator
●Blocked condenser
●Blocked radiator grille
●Blocked bumper
●Visual No blocking —
2
●Coolant mixture●Coolant tester 50 - 50% coolant mixture See MA-19.
3
●Coolant level●Visual Coolant up to MAX level
in reservoir tank and radi-
ator filler neckSee MA-7.
4
●Radiator cap●Pressure tester 59 - 98 kPa
(0.59 - 0.98 bar, 0.6 - 1.0
kg/cm
2 , 9 - 14 psi) (Limit)See LC-12.
ON*
25●Coolant leaks●Visual No leaks See LC-11.
ON*
26●Thermostat●Touch the upper and
lower radiator hosesBoth hoses should be hot See LC-15, and LC-16.
ON*
17●Cooling fan●CONSULT-II Operating See trouble diagnosis for
DTC P1217 (EC-596
).
OFF 8
●Combustion gas leak●Color checker chemical
tester 4 Gas analyzerNegative —
ON*
39●Coolant temperature
gauge●Visual Gauge less than 3/4
when driving—
●Coolant overflow to
reservoir tank●Visual No overflow during driving
and idlingSee MA-7.
OFF*
410●Coolant return from
reservoir tank to radia-
tor●Visual Should be initial level in
reservoir tankSee MA-7.
OFF 11
●Cylinder head●Straight gauge feeler
gauge0.1 mm (0.004 in) Maxi-
mum distortion (warping)SeeEM-57, "CYLINDER
HEAD" .
12
●Cylinder block and pis-
tons●Visual No scuffing on cylinder
walls or pistonSeeEM-70, "CYLINDER
BLOCK" .

9 CHECK INTERMITTENT INCIDENT
1. Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-71.
INSPECTION END
Main 12 Causes of OverheatingNJEC0667
Engine Step Inspection item Equipment Condition Reference page
OFF 1 Blocked radiator
Blocked radiator grille
Blocked bumperVisual No blocking —
2 Coolant mixture Coolant tester 50 - 50% coolant mixture See MA-19, “RECOM-
MENDED FLUIDS AND
LUBRICANTS”.
3 Coolant level Visual Coolant up to MAX level
in reservoir tank and
radiator filler neckSee LC-17, “Changing
Engine Coolant”.
4 Radiator cap Pressure tester 78 - 98 kPa
(0.78 - 0.98 bar, 0.8 - 1.0
kg/cm
2, 11 - 14 psi)See LC-37, “System
Check”.
ON*
25 Coolant leaks Visual No leaks See LC-37, “System
Check”.
ON*
26 Thermostat Touch the upper and
lower radiator hosesBoth hoses should be
hotSee LC-40, “Thermostat”
and “Radiator”.
ON*
17 Cooling fan CONSULT-II Operating See Trouble Diagnosis
for DTC P1217, EC-130.
OFF 8 Combustion gas leak Color checker chemi-
cal tester 4 Gas ana-
lyzerNegative —
ON*
39 Coolant temperature
gaugeVisual Gauge less than 3/4
when driving—
Coolant overflow to
reservoir tankVisual No overflow during driv-
ing and idlingSee LC-43, “Changing
Engine Coolant”.
OFF*
410 Coolant return from
reservoir tank to radia-
torVisual Should be initial level in
reservoir tankSee LC-43, “REFILLING
ENGINE COOLANT”.
OFF 11 Cylinder head Straight gauge feeler
gauge0.1mm (0.004 in) Maxi-
mum distortion (warping)See EM-48, “Inspection”.
12 Cylinder block and pis-
tonsVisual No scuffing on cylinder
walls or pistonSee EM-70, “Inspection”.
*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more information, refer to LC-46, “OVERHEATING CAUSE ANALYSIS”.
DTC P1217 OVER HEATYD
Diagnostic Procedure (Cont’d)
EC-144

TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-67
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Line Pressure TestECS007NY
LINE PRESSURE TEST PORTS
Location of line pressure test ports are shown in the illustration.
●Always replace pressure plugs as they are self-sealing
bolts.
LINE PRESSURE TEST PROCEDURE
1. Check A/T fluid and engine oil levels. If necessary, add fluid or
oil.
2. Drive vehicle for approx. 10 minutes or until engine oil and AT F
reach operating temperature.
3. Install pressure gauge to corresponding line pressure port.
4. Set parking brake and block wheels.
●Continue to depress brake pedal fully while line pressure test is being performed at stall speed.
5. Start engine and measure line pressure at idle and stall speed.
●When measuring line pressure at stall speed, follow the
stall test procedure.
Line pressure: Refer to AT- 5 1 5 , "
SERVICE DATA AND SPECIFI-
CATIONS (SDS)" .
SAT561J
ATF operating temperature: 50 - 80°C (122 -176°F)
SAT647B
UAT008
SAT493G

TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-265
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Line Pressure TestECS007QT
LINE PRESSURE TEST PORTS
Location of line pressure test ports are shown in the illustration.
●Always replace pressure plugs as they are self-sealing
bolts.
LINE PRESSURE TEST PROCEDURE
1. Check A/T fluid and engine oil levels. If necessary, add fluid or
oil.
2. Drive vehicle for approx. 10 minutes or until engine oil and AT F
reach operating temperature.
3. Install pressure gauge to corresponding line pressure port.
4. Set parking brake and block wheels.
●Continue to depress brake pedal fully while line pressure test is being performed at stall speed.
5. Start engine and measure line pressure at idle and stall speed.
●When measuring line pressure at stall speed, follow the
stall test procedure.
Line pressure: Refer to AT- 5 1 5 , "
SERVICE DATA AND SPECIFI-
CATIONS (SDS)" .
SAT561J
ATF operating temperature: 50 - 80°C (122 -176°F)
SAT647B
UAT008
SAT493G

ATC-1
AUTOMATIC AIR CONDITIONER
J AIR CONDITIONER
CONTENTS
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SECTION
A
B
AT C
AUTOMATIC AIR CONDITIONER
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions for Working with HFC-134a (R-134a) ..... 4
General Refrigerant Precautions .............................. 4
Lubricant Precautions .............................................. 5
Precautions for Refrigerant Connection ................... 5
FEATURES OF NEW TYPE REFRIGERANT
CONNECTION ...................................................... 5
O-RING AND REFRIGERANT CONNECTION ..... 6
Precautions for Servicing Compressor ..................... 7
Precautions for Service Equipment .......................... 7
RECOVERY/RECYCLING EQUIPMENT .............. 7
ELECTRONIC LEAK DETECTOR ........................ 8
VACUUM PUMP ................................................... 8
MANIFOLD GAUGE SET ...................................... 8
SERVICE HOSES ................................................. 8
SERVICE COUPLERS .......................................... 9
REFRIGERANT WEIGHT SCALE ........................ 9
CALIBRATING ACR4 WEIGHT SCALE ................ 9
CHARGING CYLINDER ........................................ 9
Precautions for Leak Detection Dye ......................... 9
IDENTIFICATION ................................................ 10
IDENTIFICATION LABEL FOR VEHICLE ........... 10
Wiring Diagrams and Trouble Diagnosis ................ 10
PREPARATION ..........................................................11
Special Service Tools .............................................. 11
HFC-134a (R-134a) Service Tools and Equipment .... 11
REFRIGERATION SYSTEM ..................................... 15
Refrigerant Cycle ................................................... 15
REFRIGERANT FLOW ....................................... 15
FREEZE PROTECTION ..................................... 15
Refrigerant System Protection ............................... 15
REFRIGERANT PRESSURE SENSOR (WITH
GASOLINE ENGINE) .......................................... 15
DUAL-PRESSURE SWITCH (WITH DIESEL
ENGINE) ............................................................. 15
PRESSURE RELIEF VALVE ............................... 15
CSV613 Variable Displacement Compressor ......... 16GENERAL INFORMATION ................................. 16
DESCRIPTION .................................................... 16
Component Layout ................................................. 19
LUBRICANT .............................................................. 20
Maintenance of Lubricant Quantity in Compressor ... 20
LUBRICANT ........................................................ 20
LUBRICANT RETURN OPERATION .................. 20
LUBRICANT ADJUSTING PROCEDURE FOR
COMPONENTS REPLACEMENT EXCEPT
COMPRESSOR .................................................. 21
LUBRICANT ADJUSTING PROCEDURE FOR
COMPRESSOR REPLACEMENT ....................... 21
AIR CONDITIONER CONTROL ............................... 22
Overview Air Conditioner LAN Control System ...... 22
System Construction .............................................. 22
OPERATION ........................................................ 22
TRANSMISSION DATA AND TRANSMISSION
ORDER ............................................................... 23
AIR MIX DOOR CONTROL (AUTOMATIC TEM-
PERATURE CONTROL) ..................................... 23
FAN SPEED CONTROL ...................................... 24
INTAKE DOOR CONTROL ................................. 24
OUTLET DOOR CONTROL ................................ 24
MAGNET CLUTCH CONTROL ........................... 24
SELF-DIAGNOSTIC SYSTEM ............................ 24
Overview of Control system .................................... 24
Control Operation ................................................... 25
DISPLAY SCREEN .............................................. 25
AUTO SWITCH ................................................... 25
TEMPERATURE DIAL (POTENTIO TEMPERA-
TURE CONTROL) ............................................... 25
A/C SWITCH ....................................................... 25
DEFROSTER (DEF) SWITCH ............................. 25
MODE SWITCH .................................................. 25
FAN SWITCH ...................................................... 25
OFF SWITCH ...................................................... 25
FRESH (FRE) SWITCH ...................................... 25
RECIRCULATION (REC) SWITCH ..................... 26
REAR WINDOW DEFOGGER SWITCH ............. 26
Fail-safe Function ................................................... 26