AT-220
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2007 April2007 M35/M45
Vehicle Does Not Decelerate by Engine BrakeNCS001QK
SYMPTOM:
No engine brake is applied when the gear is shifted from the 2nd to 1st gear.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 3 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Is any malfunction detected by self-diagnostic results?
YES >> Check malfunctioning system. Refer to AT- 9 2 , "SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 4 ,
"Judgement Self-diagnosis Code" .
NO >> GO TO 2.
2. CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to AT- 1 3 , "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 3.
NG >> Refill ATF.
3. CHECK A/T POSITION
Check A/T position. Refer to AT- 2 2 8 , "
Checking of A/T Position" .
OK or NG
OK >> GO TO 4.
NG >> Adjust A/T position. Refer to AT- 2 2 7 , "
Adjustment of A/T Position" .
4. CHECK MANUAL MODE SWITCH
Check manual mode switch. Refer to AT- 1 6 7 , "
DTC P1815 MANUAL MODE SWITCH" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT- 2 3 6 , "
Control Valve With TCM and A/T Fluid Temperature Sensor 2" .
2. Check A/T fluid condition. Refer to AT- 5 3 , "
A/T Fluid Condition Check" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 9.
6. DETECT MALFUNCTIONING ITEM
Check malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT- 6 4 , "
Symp-
tom Chart" (Symptom No.58).
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. CHECK SYMPTOM
Check again. Refer to AT- 6 1 , "
Cruise Test - Part 3" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 8.
AT-250
ON-VEHICLE SERVICE
Revision: 2007 April2007 M35/M45
Parking Components (2WD Models Only)NCS001QU
REMOVAL AND INSTALLATION (VQ35DE MODELS)
Components
Removal
1. Drain ATF through drain plug.
2. Remove exhaust front tube and center muffler with power tool. Refer to EX-5, "
Removal and Installation" .
3. Remove rear propeller shaft. Refer to PR-8, "
Removal and Installation" .
4. Remove control rod. Refer to AT- 2 2 6 , "
Control Rod Removal and Installation" .
5. Support A/T assembly with a transmission jack.
CAUTION:
When setting transmission jack, be careful not to allow it to collide against the drain plug.
6. Remove rear engine mounting member with power tool. Refer to AT- 2 7 4 , "
Removal and Installation (2WD
Models)" .
7. Remove engine mounting insulator (rear). Refer to AT- 2 7 4 , "
Removal and Installation (2WD Models)" .
1. Rear oil seal 2. Rear extension 3. Parking actuator support
4. Return spring 5. Parking pawl 6. Pawl shaft
7. Self-sealing bolt 8. Seal ring 9. Parking gear
10. Output shaft 11. Bearing race 12. Needle bearing
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to GI-11, "
Components" .
However, refer to the following symbols for others.
*:Apply Genuine Anaerobic Liquid Gasket or equivalent. Refer to GI-47, "Recommended Chemical Products and Sealants"
.
SCIA7030E
AT-256
ON-VEHICLE SERVICE
Revision: 2007 April2007 M35/M45
10. Apply recommended sealant (Genuine Anaerobic Liquid Gasket
or equivalent. Refer to GI-47, "
Recommended Chemical Prod-
ucts and Sealants" .) to rear extension assembly as shown in
the figure.
CAUTION:
Completely remove all moisture, oil and old sealant, etc.
from the transmission case and rear extension assembly
mounting surfaces.
11. Install rear extension assembly to transmission case. (With nee-
dle bearing.)
CAUTION:
Insert the tip of parking rod between the parking pawl and
the parking actuator support when assembling the rear
extension assembly.
12. Tighten rear extension assembly bolts to the specified torque.
Refer to AT- 2 5 0 , "
Components" .
CAUTION:
Do not reuse self-sealing bolts.
13. Install engine mounting insulator (rear). Refer to AT- 2 7 4 , "
Removal and Installation (2WD Models)" .
14. Install rear engine mounting member. Refer to AT- 2 7 4 , "
Removal and Installation (2WD Models)" .
15. Install control rod. Refer to AT- 2 2 6 , "
Control Rod Removal and Installation" .
16. Install rear propeller shaft. Refer to PR-8, "
Removal and Installation" .
17. Install exhaust front tube and center muffler. Refer to EX-5, "
Removal and Installation" .
18. Install drain plug to oil pan. Tighten a necessary drain plug with specified torque. Refer to AT- 2 3 6 , "
Control
Valve With TCM and A/T Fluid Temperature Sensor 2" .
CAUTION:
Do not reuse drain plug gasket.
19. Pour ATF into A/T assembly. Refer to AT- 1 2 , "
Changing A/T Fluid" .
SCIA5212E
SCIA3431E
SCIA6941E
ON-VEHICLE SERVICE
AT-261
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7. Install engine mounting insulator (rear). Refer to AT- 2 7 4 , "Removal and Installation (2WD Models)" .
8. Install rear engine mounting member. Refer to AT- 2 7 4 , "
Removal and Installation (2WD Models)" .
9. Install control rod. Refer to AT- 2 2 6 , "
Control Rod Removal and Installation" .
10. Install rear propeller shaft. Refer to PR-8, "
Removal and Installation" .
11. Install exhaust front tube and center muffler. Refer to EX-7, "
Removal and installation" .
12. Install drain plug to oil pan. Tighten a necessary drain plug with specified torque. Refer to AT- 2 3 6 , "
Control
Valve With TCM and A/T Fluid Temperature Sensor 2" .
CAUTION:
Do not reuse drain plug gasket.
13. Pour ATF into A/T assembly. Refer to AT- 1 2 , "
Changing A/T Fluid" .
ON-VEHICLE SERVICE
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i. Remove clips (1).
ii. Remove oil pan (2) and oil pan gasket.
: Front
: Bolt (22)
b. VK45DE models
i. Remove clips (1) and brackets (2).
ii. Remove oil pan (3) and oil pan gasket.
: Front
: Bolt (22)
7. Check foreign materials in oil pan to help determine causes of
malfunction. If the ATF is very dark, smells burned, or contains
foreign particles, the frictional material (clutches, band) may
need replacement. A tacky film that will not wipe clean indicates
varnish build up. Varnish can cause valves, servo, and clutches
to stick and can inhibit pump pressure.
If frictional material is detected, perform A/T fluid cooler
cleaning. Refer to AT- 1 4 , "
A/T Fluid Cooler Cleaning" .
8. Support A/T assembly with a transmission jack.
CAUTION:
When setting transmission jack, place wooden blocks to
prevent from damaging control valve with TCM and trans-
mission case.
9. Remove rear engine mounting member with power tool. Refer to AT- 2 7 4 , "
Removal and Installation (2WD
Models)" .
10. Remove rear extension assembly (VQ35DE models) or output shaft & companion flange complement
(VK45DE models) according to the following procedures.
a.VQ35DE models
i. Remove tightening bolts for rear extension assembly and trans-
mission case.
SCIA8039E
SCIA8035E
SCIA5199E
SCIA6941E
AT-270
ON-VEHICLE SERVICE
Revision: 2007 April2007 M35/M45
iii. Tighten output shaft & companion flange complement bolts (1)
to the specified torque. Refer to AT- 2 6 3 , "
REMOVAL AND
INSTALLATION" .
: Bolt (10)
CAUTION:
Do not reuse self-sealing bolts (2).
Refer to GI section to make sure icons (symbol marks) in the fig-
ure. Refer to GI-11, "
Components" .
5. Install rear engine mounting member. Refer to AT- 2 7 4 , "
Removal and Installation (2WD Models)" .
6. Install oil pan, oil pan gasket and clips (VQ35DE models) or oil pan, oil pan gasket, brackets and clips
(VK45DE models) according to the following procedures.
a. VQ35DE models
i. Install oil pan gasket to oil pan.
CAUTION:
Do not reuse oil pan gasket.
Install it in the direction to align hole positions.
Complete remove all moisture, oil and old gasket, etc. from oil pan gasket mounting surface.
ii. Install oil pan (2) (with oil pan gasket) and clips (1) to transmis-
sion case.
: Front
: Bolt (22)
CAUTION:
Install it so that drain plug comes to the position as
shown in the figure.
Be careful not to pinch harnesses.
Completely remove all moisture, oil and old gasket, etc.
from oil pan mounting surface.
iii. Tighten oil pan mounting bolts to the specified torque in numeri-
cal order shown in the figure after temporarily tightening them.
Tighten oil pan mounting bolts to the specified torque. Refer to
AT- 2 6 3 , "
Components" .
CAUTION:
Do not reuse oil pan mounting bolts.
b. VK45DE models
i. Install oil pan gasket to oil pan.
CAUTION:
Do not reuse oil pan gasket.
Install it in the direction to align hole positions.
Complete remove all moisture, oil and old gasket, etc. from oil pan gasket mounting surface.
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SCIA8039E
SCIA4113E
PRECAUTIONS
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Revision: 2007 April2007 M35/M45
After compressor service operation, turn the compressor shaft by hand more than five turns in
both directions. This will equally distribute lubricant inside the compressor. After the compressor
is installed, let the engine idle and operate the compressor for one hour.
After replacing the compressor magnet clutch, apply voltage to the new one and check for normal
operation.
Precautions for Service EquipmentNJS000FU
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.
ELECTRICAL LEAK DETECTOR
Be certain to follow the manufacturer’s instructions for tester operation and tester maintenance.
VACUUM PUMP
The lubricant contained inside the vacuum pump is not compatible
with the specified lubricant for HFC-134a (R-134a) A/C systems.
The vent side of the vacuum pump is exposed to atmospheric pres-
sure. So the vacuum pump lubricant may migrate out of the pump
into the service hose. This is possible when the pump is switched off
after evacuation (vacuuming) 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 isolate the service hose from the
pump.
For pumps without an isolator, use a hose equipped with a man-
ual 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 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 lubricants.
RHA270DA
SHA533D
ATC-26
LUBRICANT
Revision: 2007 April2007 M35/M45
LUBRICANTPFP:KLG00
Maintenance of Lubricant Quantity in CompressorNJS000G3
The lubricant in the compressor circulates through the system with the refrigerant. Add lubricant to compres-
sor when replacing any component or after a large refrigerant leakage occurred. It is important to maintain the
specified amount.
If lubricant quantity is not maintained properly, the following malfunctions may result:
Lack of lubricant: May lead to a seized compressor.
Excessive lubricant: Inadequate cooling (thermal exchange interference)
LUBRICANT
LUBRICANT RETURN OPERATION
Adjust the lubricant quantity according to the test group shown below.
1. CHECK LUBRICANT RETURN OPERATION
Can lubricant return operation be performed?
A/C system works properly.
There is no evidence of a large amount of lubricant leakage.
CAUTION:
If excessive lubricant leakage is noted, never perform the lubricant return operation.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. PERFORM LUBRICANT RETURN OPERATION, PROCEEDING AS FOLLOWS
1. Start the engine, and set to the following conditions:
–Engine speed: Idling to 1,200 rpm
–A/C switch: ON
–Blower speed: Max. position
–Temp. control: Optional [Set so that intake air temperature is 25 to 30°C (77 to 86°F).]
–Intake position: Recirculation (REC)
2. Perform lubricant return operation for about 10 minutes.
3. Stop the engine.
>> GO TO 3.
3. CHECK REPLACEMENT PART
Should the compressor be replaced?
YES >> GO TO AT C - 2 7 , "LUBRICANT ADJUSTING PROCEDURE FOR COMPRESSOR REPLACE-
MENT" .
NO >> GO TO AT C - 2 7 , "
LUBRICANT ADJUSTING PROCEDURE FOR COMPONENTS REPLACE-
MENT EXCEPT COMPRESSOR" . Name : Nissan A/C System Oil Type S