2003 NISSAN X-TRAIL check engine

ATC-102
TROUBLE DIAGNOSIS
1.CHECK INTAKE SENSOR CIRCUIT BETWEEN INTAKE SENSOR AND BODY GROUND
Disconnect intake sensor harness connector.
Ye s o r N o
Yes >>GOTO2.
No >> GO TO 4.
2.CHECK INTAKE SENSOR CIRCUIT BETWEEN INTAKE SENSOR AND AUTO AMP. (LCU)
Disconnect auto amp. (LCU) harness connector.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
Engine modelTe r m i n a l s
Vo l ta g e (+)
(-)
ConnectorTe r m i n a l ( W i r e
color)
With gasoline
engineM68 1 (BR/Y)
Ground Approx. 5V
With diesel engine M69 1 (BR/Y)
RJIA0568E
Engine modelTe r m i n a l s
Continuity Intake sensor Auto amp.
ConnectorTerminal (Wire
color)ConnectorTerminal (Wire
color)
With gasoline
engineM68 2 (B/Y)
M5324 (B/Y)
Ye s
With diesel engine M69 2 (B/Y) 24 (B/Y)
RJIA0569E

TROUBLE DIAGNOSIS
ATC-103
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3.CHECK INTAKE SENSOR
Refer toATC-101, "
Intake Sensor"
OK or NG
OK >> 1. Replace auto amp.
2. Go to self-diagnosis step-by-stepAT C - 4 3 , "
PROCEDURE"and perform self-diagnosis STEP-
2.Confirm that code No. 20 is displayed.
NG >> 1. Replace intake sensor.
2. Go to self-diagnosis step-by-stepAT C - 4 3 , "
PROCEDURE"and perform self-diagnosis STEP-
2.Confirm that code No. 20 is displayed.
4.CHECK INTAKE SENSOR CIRCUIT BETWEEN AMBIENT SENSOR AND AUTO AMP. (LCU)
Disconnect auto amp. (LCU) harness connector.
OK or NG
OK >> 1. Replace auto amp.
2. Go to self-diagnosis step-by-stepAT C - 4 3 , "
PROCEDURE"and perform self-diagnosis STEP-
2.Confirm that code No. 20 is displayed.
NG >> Repair harness or connector.
Engine modelTerminals
Continuity Intake sensor Auto amp.
ConnectorTerminal (Wire
colorConnectorTerminal (Wire
color)
With gasoline
engineM68 1 (BR/Y)
M5325 (BR/Y)
Ye s
With diesel engine M69 1 (BR/Y) 25 (BR/Y)
RJIA0570E

ATC-132
REFRIGERANT LINES
10. Remove the field coil harness clip using a screwdriver.
11. Then remove the three field coil fixing screws and remove the
field coil.
Inspection
Clutch disc
If the contact surface shows signs of damage due to excessive heat,
replace clutch disc and pulley.
Pulley
Check the appearance of the pulley assembly. If the contact surface
of pulley sows signs of excessive grooving, replace clutch disc and
pulley. The contact surfaces of the pulley assembly should be
cleaned with a suitable solvent before reinstallation.
Coil
Check coil for loose connection or cracked insulation.
INSTALLATION
With Gasoline Engine (CWV-615M Compressor)
1. Install the field coil.
Be sure to align the coil's pin with the hole in the compressor's
front head.
2. Install the field coil harness clip using a screwdriver.
RHA074C
RJIA0582E
RJIA0583E
RHA142E

ATC-134
REFRIGERANT LINES
With Diesel Engine (DKV-11G Compressor)
1. Install the field coil.
Be sure to align the coil's pin with the hole in the compressor's
front head.
2. Install the field coil harness clip using a screwdriver.
3. Install the pulley assembly using the installer and a hand press,
and then install the snap ring using snap ring pliers.
4. Install the drive plate on the drive shaft, together with the original
shim(s). Press the clutch disc down by hand.
5. Using the holder to prevent clutch disc rotation.
After tightening the bolt, check that the pulley rotates smoothly.
RHA076C
ZHA094H
RHA078C
Tightening torque : 12 - 15 N-m (1.2 - 1.5 kg-m)
SHA101EA

ATC-138
REFRIGERANT LINES
Removal and Installation for Dual-pressure Switch
EJS001F6
1. Remove the condenser.
2. Remove the dual-pressure switch from the condenser.
CAUTION:
lWhen working, be careful not to damage the compressor
fan.
lApply compressor oil to the O-ring of the refrigerant pres-
sure sensor when installing it.
Removal and Installation for CondenserEJS000VF
REMOVAL
1. Using the recycling and recovery equipment (for HFC134a), dis-
charge the refrigerant from A/C system.
2. Disconnect the high-pressure flexible hose and the high-pres-
sure pipe from the condenser.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
3. Remove the front grille and radiator mounting bracket.
4. Remove the mounting nuts from the condenser.
5. Remove the radiator from the lower mount, move it to the engine
side, then remove the condenser between the radiator and the
radiator core support.
CAUTION:
Be careful not to damage the core surface of the condenser
and the radiator.
INSTALLATION
CAUTION:
lReplace the O-rings of the high-pressure pipe and the high-pressure flexible hose with new ones,
then apply compressor oil to them after installing them.
lWhen pouring refrigerant, check for leaks.Tightening torque :9.8 - 11.7 N-m (1.0 - 1.2kg-m)
RJIA0585E
RJIA0080E
RJIA0081E
High-pressure flexible hose mounting bolts
Tightening torque :7.8 - 19.6 N-m (0.8 - 2.0 kg-m)
High-pressure pipe mounting bolts
Tightening torque :2.9 - 5.9 N-m (0.29 - 0.6 kg-m)
Condenser mounting bolts
Tightening torque :3.82 - 4.51 N-m (0.39 - 0.46 kg-m)

REFRIGERANT LINES
ATC-141
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CAUTION:
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 DetectorEJS000VK
1. Check A/C system for leaks using the UV lamp and safety glasses (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. Fluorescent dye observed at the evaporator drain opening indi-
cates an evaporator core assembly (tubes, core or TXV) 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 lubricants, may falsely trigger the leak 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 InjectionEJS000VL
(This procedure is only necessary when recharging the system or when the compressor has seized and was
replaced.)
1. Check A/C system static (at rest) pressure. Pressure must be at least 345 kPa (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 injector 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 component, pour the dye directly into the open system con-
nection and proceed with 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 DetectorEJS000VM
PRECAUTIONS FOR HANDLING LEAK DETECTOR
When performing a refrigerant leak check, use an A/C leak detector
or equivalent. Ensure that the instrument is calibrated and set prop-
erly 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.
SHA705EB

ATC-142
REFRIGERANT LINES
1. Position probe approximately 5 mm (3/16 in) away from point to
be checked.
2. When testing, circle each fitting completely with probe.
3. Move probe along component approximately 25 to 50 mm (1 to
2 in)/sec.
CHECKING PROCEDURE
To prevent inaccurate or false readings, make sure there is no refrigerant vapor, shop chemicals, or cigarette
smoke in the vicinity of the vehicle. Perform the leak test in calm area (low air/wind movement) so that the
leaking refrigerant is not dispersed.
1. Turn engine OFF.
2. Connect a suitable A/C manifold gauge set to the A/C service ports.
3. Check if the A/C refrigerant pressure is at least 345 kPa (3.52 kg/cm
2,50psi)above16°C(61°F).Ifless
than specification, recover/evacuate and recharge the system with the specified amount of refrigerant.
NOTE:
At temperatures below 16°C(61°F), leaks may not be detected since the system may not reach 345 kPa (3.54
kg/cm
2,50psi).
4. Conduct the leak test from the high side (compressor discharge a to evaporator inlet f) to the low side
(evaporator drain hose g to shaft seal i). Refer toATC-125
. Perform a leak check for the following areas
carefully. Clean the component to be checked and move the leak detected probe completely around the
connection/component.
Compressor
Check the fitting of high and low pressure hoses, relief valve and shaft seal.
Liquid tank
Check the refrigerant pressure sensor.
Service valves
SHA707EA
SHA706E
SHA839E

REFRIGERANT LINES
ATC-143
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AT C
Check all around the service valves. Ensure service valve caps are secured on the service valves (to pre-
vent leaks).
NOTE:
After removing A/C manifold gauge set from service valves, 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 accumulation time (refer to the manufacturer's recommended
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 caution 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. Face mode
c. Intake 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 checked immediately after stopping the
engine. Begin with the leak detector at the compressor. The pres-
sure 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 ACR4 to vehicle, check ACR4 gauges. No refrigerant pressure should be displayed. If
pressure is displayed, recover refrigerant from equipment lines and then check refrigerant purity.
12. Discharge A/C system using approved refrigerant recovery equipment. Repair the leaking fitting or com-
ponent as necessary.
13. Evacuate and recharge A/C system and perform the leak test to confirm no refrigerant leaks.
14. Conduct A/C performance test to ensure system works properly.
Service Data and Specifications (SDS)EJS000VN
COMPRESSOR
SHA708EA
ModelWith gasoline engine With diesel engine
CALSONIC KANSEI make V-6 ZEXEL VALEO make DKV-11G
Type V-6 variable displacement Vane rotary