Pressure switch NISSAN TIIDA 2009 Service Repair Manual

ENGINE MAINTENANCE (MR18DE)
MA-31
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2. Insert oil level gauge and make sure the engine oil level is within
the range (A) as shown.
3. If it is out of range, adjust it.
ENGINE OIL APPEARANCE • Check engine oil for white milky or excessive contamination.
• If engine oil becomes white, it is highly probable t hat it is contaminated with engine coolant. Repair or
replace damaged parts.
ENGINE OIL LEAKAGE Check for engine oil leakage around the following areas:
• Oil pan (upper and lower)
• Oil pan drain plug
• Oil pressure switch
• Oil filter
• Intake valve timing control solenoid valve
• Front cover
• Mating surface between cylinder block and cylinder head
• Mating surface between cylinder head and rocker cover
• Crankshaft oil seals (front and rear)
• Oil filter (for intake valve timing control)
OIL PRESSURE CHECK WARNING:
• Be careful not to burn yoursel f, as engine oil may be hot.
• For engine oil pressure check the transaxle should be in “ Park position” (A/T models) and (CVT
models) or “Neutral position” (M/T mode ls), and apply the parking brake securely.
1. Check engine oil level.
2. Remove undercover using power tool.
3. Disconnect harness connector at oil pressure switch (1), and remove oil pressure switch using a suitable tool.
• Oil pan (lower) (2)
• ⇐ Front
CAUTION:
Do not drop or shock oil pressure switch. WBIA0776E
PBIC3310E

MA-32< SERVICE INFORMATION >
ENGINE MAINTENANCE (MR18DE)
4. Install oil pressure gauge and hose.
5. Start engine and warm it up to normal operating temperature.
6. Check oil pressure with engine running under no-load. Refer to LU-22, " Standard and Limit " .
If difference is extreme, check oil passage and oil pump for oil leaks.
NOTE:
When engine oil temperature is low, engine oil pressure becomes high.
7. After the inspections, install oil pressure switch as follows:
a. Remove old liquid gasket adhering to oil pressure switch and engine.
b. Apply liquid gasket and tighten oil pressure switch to specification. Use Genuine Silicone RTV Sealant or equivalent. Refer to GI-42, " Recommended Chemical Product
and Sealant " .
c. Check engine oil level.
d. After warming up engine, make sure there are no leaks of engine oil with running engine.
ENGINE OIL : Changing Engine Oil INFOID:0000000004683695
WARNING:
• Be careful not to burn yoursel f, as engine oil may be hot.
• Prolonged and repeated contact with used engine oil may cause ski n cancer. Try to avoid direct skin
contact with used engine oil. If skin contact is made, wash thoroughly with soap or hand cleaner as
soon as possible.
1. Warm up the engine, park vehicle on a level surface and check for engine oil leakage from engine compo- nents. Refer to MA-30, " ENGINE OIL : Inspection " .
2. Stop the engine and wait for 10 minutes. Tool number : ST25051001 (J-25695-1)
: ST25052000 (J-25695-2) WBIA0571E
Oil pressure switch : 14.7 N·m (1.5 kg-m, 11 ft-lb)

MTC-4< SERVICE INFORMATION >
PRECAUTIONS
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of a ll control units using CONSULT-III.
Precaution for Procedure without Cowl Top Cover INFOID:0000000004307042
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precaution for Working with HFC-134a (R-134a) INFOID:0000000004307043
WARNING:
• CFC-12 (R-12) refrigerant and HFC-134a (R-134a) re frigerant are not compatible. These refrigerants
must never be mixed, even in the smallest amounts. If the refrigerants are mixed a compressor mal-
function is likely to occur.
• Use only specified oil for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) components. If
oil other than that specifi ed is used, compressor malf unction is likely to occur.
• The specified HFC-134a (R-134a) oi l rapidly absorbs moisture from the atmosphere. The following
handling precautions must be observed:
- When removing refrigerant components from a vehicle, immediately cap (seal) the component to
minimize the entry of moisture from the atmosphere.
- When installing refrigerant co mponents to a vehicle, do not remove the caps (unseal) until just
before connecting the components . Connect all refrigerant loop components as quickly as possible
to minimize the entry of moisture into system.
- Only use the specified oil from a sealed container. Immediately reseal containers of oil. Without
proper sealing, oil will become moisture saturat ed and should not be used.
- Avoid breathing A/C refrigerant and oil vapor or mist. Exposure may irritate eyes, nose and throat.
Use only approved recovery/recycling equipment to discharge HFC-134a (R-134a) refrigerant. If acci-
dental system discharge occurs, ventilate work area before resuming service. Additional health and
safety information may be obtained fr om refrigerant and oil manufacturers.
- Do not allow A/C oil to come in contact with styrofoam parts. Damage may result.
General Refrigerant Precaution INFOID:0000000004307044
WARNING:
• Avoid breathing A/C refrigerant and oil vapor or mist. Exposure may irritate eyes, nose and throat.
Use only approved recovery/recycling equipment to discharge HFC-134a (R-134a) refrigerant. If acci-
dental system discharge occurs, ventilate work area before resuming service. Additional health and
safety information may be obtained fr om refrigerant and oil manufacturers.
• Do not release refrigerant into th e air. Use approved recovery/recycling equipment to capture the
refrigerant every time an air conditioning system is discharged.
• Always wear eye and hand protection (goggles and gloves) when working with any refrigerant or air
conditioning system.
• Do not store or heat refrigerant containers above 52 °C (126 ° F).
• Do not heat a refrigerant container with an open flame; if container warming is required, place the
bottom of the container in a warm pail of water.
• Do not intentionally drop, puncture, or incinerate refrigerant containers.
• Keep refrigerant away from open flames: poisonou s gas will be produced if refrigerant burns.
• Refrigerant will displace oxygen, therefore be certa in to work in well ventilated areas to prevent suf-
focation.
• Do not pressure test or leak test HFC-134a (R-134a) service equipment and/or vehicle air condition-
ing systems with compressed air during repair. Some mixtures of air and HFC-134a (R-134a) have PIIB3706J

Maintenance of Oil Quantity in Compressor " .
• Keep friction surfaces between clut ch and pulley clean. If the surface is contaminated, with oil, wipe
it off by using a clean waste cloth moistened with thinner.
• After compressor service operation, turn the compresso r shaft by hand more than five turns in both
directions. This will equally dist ribute oil inside the compressor. After the compressor is installed,
let the engine idle and operat e the compressor for one hour.
• After replacing the compressor magnet clutch, ap ply voltage to the new one and check for usual
operation.
Precaution for Service Equipment INFOID:0000000004307048
RECOVERY/RECYCLING EQUIPMENT
Be certain to follow the manufacturer’s instructions for machine operation and machine maintenance. Never
introduce any refrigerant other than that specified into the machine.
ELECTRONIC LEAK DETECTOR
Be certain to follow the manufacturer’s instruct ions for tester operation and tester maintenance.
VACUUM PUMP
The oil contained inside the vacuum pump is not compatible with the
specified oil for HFC-134a (R-134a) A/C systems. The vent side of
the vacuum pump is exposed to atmospheric pressure. So the vac-
uum pump oil may migrate out of the pump into the service hose.
This is possible when the pump is switched off after evacuation (vac-
uuming) and hose is connected to it.
To prevent this migration, use a manual valve placed near the hose-
to-pump connection, as follows.
• Usually vacuum pumps have a manual isolator valve as part of the pump. Close this valve to isolat e the service hose from the pump.
• For pumps without an isolator, use a hose equipped with a manual
shut-off valve near the pump end. Close the valve to isolate the
hose from the pump.
• If the hose has an automatic shut -off valve, disconnect the hose
from the pump. As long as the hose is connected, the valve is open
and lubricating oil may migrate.
Some one-way valves open when vacuum is applied and close
under a no vacuum condition. Such valves may restrict the pump’s
ability to pull a deep vacuum and are not recommended.
MANIFOLD GAUGE SET
Be certain that the gauge face indicates HFC-134a or R-134a. Be
sure the gauge set has 1/2 ″-16 ACME threaded connections for ser-
vice hoses. Confirm the set has been used only with refrigerant
HFC-134a (R-134a) and specified oils.
SERVICE HOSES SHA533D

REFRIGERANT LINES
MTC-87
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Moving the electronic leak detector probe slower
and closer to the suspected leak area will improve
the chances of finding a leak.
Checking System for Leaks Using the Fluorescent Leak Detector INFOID:0000000004307101
1. Check A/C system for leaks using the UV lamp and safety goggles J-42220 in a low sunlight area (area
without windows preferable). Illuminate all components, fittings and lines. The dye will appear as a bright
green/yellow area at the point of leakage. Fluoresc ent dye observed at the evaporator drain opening indi-
cates an evaporator core assembly (tubes , core or expansion valve) leak.
2. If the suspected area is difficult to see, use an adjustable mirror or wipe the area with a clean shop rag or
cloth, with the UV lamp for dye residue.
3. After the leak is repaired, remove any residual dye using dye cleaner J-43872 to prevent future misdiag- nosis.
4. Perform a system performance check and verify the leak repair with an approved electronic refrigerant leak detector.
NOTE:
Other gases in the work area or substances on the A/C components, for example, anti-freeze, windshield
washer fluid, solvents and oils, may falsely trigger the l eak detector. Make sure the surfaces to be checked are
clean.
Clean with a dry cloth or blow off with shop air.
Do not allow the sensor tip of the detector to contact with any substance. This can also cause false readings
and may damage the detector.
Dye Injection INFOID:0000000004307102
(This procedure is only necessary when recharging t he system or when the compressor has seized and was
replaced.)
1. Check A/C system static (at rest) pressure. Pres sure must be at least 345 kPa (3.45 bar, 3.52 kg/cm2
, 50
psi).
2. Pour one bottle (1/4 ounce / 7.4 cc) of the A/C refrigerant dye into the injector tool J-41459.
3. Connect the injector tool to the A/C low-pressure side service fitting.
4. Start engine and switch A/C ON.
5. When the A/C operating (compressor running), inject one bottle (1/4 ounce / 7.4 cc) of fluorescent dye
through the low-pressure service valve using dye inje ctor tool J-41459 (refer to the manufacture’s operat-
ing instructions).
6. With the engine still running, disconnect the injector tool from the service fitting.
CAUTION:
Be careful the A/C system or replacing a componen t, pour the dye directly into the open system
connection and proceed wi th the service procedures.
7. Operate the A/C system for a minimum of 20 minutes to mix the dye with the system oil. Depending on the
leak size, operating conditions and location of the leak , it may take from minutes to days for the dye to
penetrate a leak and become visible.
Electronic Refrigerant Leak Detector INFOID:0000000004307103
PRECAUTIONS FOR HANDLING LEAK DETECTOR When performing a refrigerant leak c heck, use an A/C electrical leak
detector (SST) or equivalent. Ensure that the instrument is calibrated
and set properly per the operating instructions.
The leak detector is a delicate device. In order to use the leak detec-
tor properly, read the operating instructions and perform any speci-
fied maintenance. AHA281A

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Check all around the service valves. Ensure service valve caps are secured on the service valves (to
prevent leaks).
NOTE:
After removing A/C manifold gauge set from service va lves, wipe any residue from valves to prevent any
false readings by leak detector.
• Cooling unit (Evaporator)
With engine OFF, turn blower fan on “High” for at least 15 seconds to dissipate any refrigerant trace in
the cooling unit. Wait a minimum of 10 minutes ac cumulation time (refer to the manufacturer’s recom-
mended procedure for actual wait time) before inserting the leak detector probe into the drain hose.
Keep the probe inserted for at least 10 seconds. Use c aution not to contaminate the probe tip with water
or dirt that may be in the drain hose.
5. If a leak detector detects a leak, verify at least once by blowing compressed air into area of suspected
leak, then repeat check as outlined above.
6. Do not stop when one leak is found. Continue to check for additional leaks at all system components.
If no leaks are found, perform steps 7-10.
7. Start engine.
8. Set the heater A/C control as follows;
a. A/C switch: ON
b. Mode control dial position: VENT (Ventilation)
c. Intake door lever position: Recirculation
d. Max. cold temperature
e. Fan speed: High
9. Run engine at 1,500 rpm for at least 2 minutes.
10. Turn engine off and perform leak check again following steps 4 through 6 above.
Refrigerant leaks should be chec ked immediately after stopping
the engine. Begin with the leak detector at the compressor. The
pressure on the high-pressure side will gradually drop after
refrigerant circulation stops and pressure on the low-pressure
side will gradually rise, as shown in the graph. Some leaks are
more easily detected when pressure is high.
11. Before connecting recovery/recycling equipment to vehicle, check recovery/recycling equipment gauges. No refrigerant
pressure should be displayed. If pressure is displayed, recover
refrigerant from equipment lines.
12. Discharge A/C system using approved refrigerant reco very/recycling equipment. Repair the leaking fitting
or component if necessary.
13. Evacuate and recharge A/C system and perform the l eak test to confirm no refrigerant leaks.
14. Perform A/C performance test to ensure system works properly.

Item name
CONSULT-III
screen display Display or unit Monitor item selection
Description
ALL
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
Motor fan request MOTOR FAN
REQ 1/2/3/4 X X X Signal status input from ECM
Compressor re-
quest AC COMP REQ ON/OFF X X X Signal status input from ECM
Parking, license,
and tail lamp re-
quest TAIL & CLR REQ ON/OFF X X X Signal status input from BCM
Headlamp low
beam request HL LO REQ ON/OFF X X X Signal status input from BCM
Headlamp high
beam request HL HI REQ ON/OFF X X X Signal
status input from BCM
Front fog request FR FOG REQ ON/OFF X X X Signal status input from BCM
FR wiper request FR WIP REQ STOP/1LO/LO/HI X X X Signal status input from BCM
Wiper auto stop WIP AUTO
STOP ACT P/STOP P X X X Output status of IPDM E/R
Wiper protection WIP PROT OFF/LS/HS/Block X X X Control status of IPDM E/R
Starter request ST RLY REQ ON/OFF X X Status of input signal (*1)
Ignition relay
status IGN RLY ON/OFF X X X Ignition relay status monitored
with IPDM E/R
Rear defogger re-
quest RR DEF REQ ON/OFF X X X Signal status input from BCM
Oil pressure
switch OIL P SW OPEN/CLOSE X X
Signal status input from IPDM
E/R
Hood switch HOOD SW (*2) OFF X X Signal status input from IPDM
E/R

Door Switch Check (Hatchback) " when the auto active test cannot be
performed.
INSPECTION IN AUTO ACTIVE TEST MODE
When auto active test mode is actuated, t he following six steps are repeated three times.
(A): Oil pressure warning lamp is blin king when the auto active test is operating.

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24 Y Cooling fan relay-3 Output —
Conditions correct for cooling
fan high operation Battery voltage
Conditions not correct for
cooling fan high operation 0V
26 O Tail lamp relay (park-
ing lamps) Output — Lighting switch in 2nd position Battery voltage
27 BR Tail lamp relay (park-
ing lamps) Output — Lighting switch in 2nd position Battery voltage
28 GR Tail lamp relay (park-
ing lamps) Output — Lighting switch in 2nd position Battery voltage
29 P Tail lamp relay (park-
ing lamps) Output — Lighting switch in 2nd position Battery voltage
30
(A/T
only) R Fuse 54 Output — Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
31 O Fuse 55 Output — Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
32 L Wiper high speed sig-
nal OutputON or
START Wiper switch OFF, LO, INT 0V
HI Battery voltage
33 Y Wiper low speed sig-
nal OutputON or
START Wiper switch OFF 0V
LO or INT Battery voltage
35 BR Starter relay (inhibit
switch) InputON or
START Selector lever in "P" or "N"
(CVT or A/T) or clutch pedal
depressed (M/T) Battery voltage
Selector lever any other posi-
tion (CVT or A/T) or clutch
pedal released (M/T) 0V
36 BR Fuel pump relay Output — Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
37 G Oil pressure switch Input ON or
START Engine running and oil pres-
sure within specification Battery voltage
Engine not running or oil pres-
sure below specification 0V
38 R Wiper auto stop signal Input ON or
START Wipers not in park position Battery voltage
Wipers in park position 0V
39 B Ground Input — — 0V
40 P CAN-L — ON — —
41 L CAN-H — ON — —
45 R Horn relay control Input — Horn switch PUSHED, alarm
switch activated or door lock/
unlock is confirmed when op-
erating lock system via the
keyfob 0V
Horn switch released, alarm
not active, keyfob not active Battery voltage
46 Y Throttle control motor
relay control Input —Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
47 GR Fuel pump relay con-
trol Input —Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
Terminal
Wire
color Signal name Signal
input/
output Measuring condition
Reference value
(Approx.)
Ignition
switch Operation or condition

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BODY HARNESS (HATCHBACK) B5 F3 B/1 : A/C compressor F5 F25 B/10 : Park/n
eutral position (PNP) switch (with A/T)
B4 F4 — : Generator C3 F26 W/2 : Condenser-2
A4 F5 — : Generator ground C5 F27 — : Starter motor
E3 F6 GR/2 : Engine coolant temperature sensor C5 F28 — : Starter motor
D2 F7 B/6 : Electric throttle control actuator F5 F30 B/8 : Terminal cord assembly
G4 F8 SMJ : To E8 F2 F31 B/6 : Mass air flow sensor
B4 F9 — : Engine ground C5 F32 GR/1 : Oil pressure switch
G2 F10 GR/32 : ECM F5 F33 GR/6 : To E19
G2 F11 BR/48 : ECM C3 F34 GR/3 : Ignition coil No. 1 (with power transistor)
D3 F12 GR/4 : Air fuel ratio (A/F) sensor 1 C3 F35 GR/3 : Ignition coil No. 2 (with power transistor)
E2 F13 B/4 : Heated oxygen sensor 2 C3 F36 GR/3 : Ignition coil No. 3 (with power transistor)
C4 F14 B/2 : Knock sensor C3 F37 GR/3 : Ignition coil No. 4 (with power transistor)
D3 F15 B/3 : Crankshaft position sensor (POS) E5 F38 BR/3 : Revolution sensor
C4 F16 — : Engine ground E4 F39 — : Fusible link box (battery)
B4 F17 GR/2 : Fuel injector No. 1 E4 F40 — : Fusible link box (battery)
C4 F18 GR/2 : Fuel injector No. 2 E2 F41 GR/2 : Vehicle speed sensor
C4 F19 GR/2 : Fuel injector No. 3 F5 F45 GR/3 : Turbine revolution sensor
D4 F20 GR/2 : Fuel injector No. 4 E5 F46 GR/22 : CVT unit
D4 F21 B/3 : Camshaft position sensor (PHASE) E5 F4 7 B/3 : Powertrain revolution sensor (with A/T)
C3 F22 GR/2 : EVAP canister purge volume control
solenoid valve E3 F48 B/3 : Secondary speed sensor (with M/T)