2007 INFINITI FX35 engine

TROUBLE DIAGNOSIS FOR SYMPTOMS AT-209
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Revision: 2006 July 2007 FX35/FX45
3. 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 4.
NG >> Refill ATF.
4. CHECK LINE PRESSURE
Check line pressure at the engine stall point. Refer to AT- 5 4 , "
LINE
PRESSURE TEST" .
OK or NG
OK >> GO TO 7.
NG-1 >> Line pressure high: GO TO 5.
NG-2 >> Line pressure low: GO TO 6.
5. DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to AT- 2 3 9 , "
Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2" .
2. Disassemble A/T. Refer to AT- 2 9 4 , "
DISASSEMBLY" .
3. Check the following.
–Oil pump assembly. Refer to AT- 3 1 2 , "Oil Pump" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
6. DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to AT- 2 3 9 , "
Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2" .
2. Disassemble A/T. Refer to AT- 2 9 4 , "
DISASSEMBLY" .
3. Check the following.
–Oil pump assembly. Refer to AT- 3 1 2 , "Oil Pump" .
–Power train system. Refer to AT- 2 9 4 , "DISASSEMBLY" .
–Transmission case. Refer to AT- 2 9 4 , "DISASSEMBLY" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
SAT638A
SAT494G

TROUBLE DIAGNOSIS FOR SYMPTOMS AT-211
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Revision: 2006 July 2007 FX35/FX45
A/T Does Not Shift: D4 → D5NCS001HU
SYMPTOM:

The vehicle does not shift-up from the D4 to D5 gear at the specified speed.

The vehicle does not shift-up from the D4 to D5 gear unless A/T is warmed up.
DIAGNOSTIC PROCEDURE
1. CONFIRM THE SYMPTOM
Check if vehicle creeps forward in “D” position and vehicle can be started from D
1.
OK or NG
OK >> GO TO 2.
NG >> Refer to AT- 1 9 9 , "
Vehicle Does Not Creep Forward in “D” Position" , AT- 2 0 1 , "Vehicle Cannot Be
Started From D1" .
2. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 2 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 9 2 , "SELF-DIAGNOSTIC RESULT MODE" , AT-
103, "Judgement Self-diagnosis Code" .
NO >> GO TO 3.
3. 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 4.
NG >> Refill ATF.
4. CHECK LINE PRESSURE
Check line pressure at the engine stall point. Refer to AT- 5 4 , "
LINE
PRESSURE TEST" .
OK or NG
OK >> GO TO 7.
NG-1 >> Line pressure high: GO TO 5.
NG-2 >> Line pressure low: GO TO 6.
SAT638A
SAT494G

TROUBLE DIAGNOSIS FOR SYMPTOMS AT-213
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Revision: 2006 July 2007 FX35/FX45
10. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 8 9 , "
TCM Input/Output Signal Reference Values" .
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
11 . DETECT MALFUNCTIONING ITEM
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT- 6 4 ,
"Symptom Chart" (Symptom No.13).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
A/T Does Not Lock-upNCS001HV
SYMPTOM:
A/T does not lock-up at the specified speed.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 2 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 9 2 , "SELF-DIAGNOSTIC RESULT MODE" , AT-
103, "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 LINE PRESSURE
Check line pressure at the engine stall point. Refer to AT- 5 4 , "
LINE
PRESSURE TEST" .
OK or NG
OK >> GO TO 6.
NG-1 >> Line pressure high: GO TO 4.
NG-2 >> Line pressure low: GO TO 5.
SAT638A
SAT494G

TROUBLE DIAGNOSIS FOR SYMPTOMS AT-217
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Revision: 2006 July 2007 FX35/FX45
Lock-up Is Not ReleasedNCS001HX
SYMPTOM:
The lock-up condition cannot be cancelled even after releasing the accelerator pedal.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 2 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 9 2 , "SELF-DIAGNOSTIC RESULT MODE" , AT-
103, "Judgement Self-diagnosis Code" .
NO >> GO TO 2.
2. CHECK SYMPTOM
Check again. Refer to AT- 5 8 , "
Cruise Test - Part 1" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 3.
3. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 8 9 , "
TCM Input/Output Signal Reference Values" .
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Engine Speed Does Not Return to IdleNCS001HY
SYMPTOM:
When a shift-down is performed, the engine speed does not smoothly return to the idling speed.
DIAGNOSTIC PROCEDURE
1. 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 2.
NG >> Refill ATF.
2. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 2 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 2 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 9 2 , "SELF-DIAGNOSTIC RESULT MODE" , AT-
103, "Judgement Self-diagnosis Code" .
NO >> GO TO 3.
SAT638A

TROUBLE DIAGNOSIS FOR SYMPTOMS AT-227
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Revision: 2006 July 2007 FX35/FX45
Vehicle Does Not Decelerate by Engine BrakeNCS001I4
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 2 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 9 2 , "SELF-DIAGNOSTIC RESULT MODE" , AT-
103, "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 the A/T position. Refer to AT- 2 3 1 , "
Checking of A/T Position" .
OK or NG
OK >> GO TO 4.
NG >> Adjust A/T position. Refer to AT- 2 3 1 , "
Adjustment of A/T
Position" .
4. CHECK MANUAL MODE SWITCH
Check the manual mode switch. Refer to AT- 1 6 6 , "
DTC P1815 MANUAL MODE SWITCH" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
SAT638A
SCIA2119E

SHIFT CONTROL SYSTEM AT-231
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Revision: 2006 July 2007 FX35/FX45
REMOVAL
1. Disconnect lower lever of control device and control rod.
2. Remove manual lever from A/T assembly.
3. Remove control rod from vehicle.
INSTALLATION
Install in reverse order of removal. Be careful of the following:

After installation is completed, adjust and check A/T position. Refer to AT- 2 3 1 , "Adjustment of A/T Posi-
tion" and AT- 2 3 1 , "Checking of A/T Position" .
Adjustment of A/T PositionNCS001I7
1. Loosen nut of control rod.
2. Place PNP switch and selector lever in “P” position.
3. While pressing lower lever toward rear of vehicle (in “P” position direction), tighten nut to the specified torque. Refer to AT- 2 3 0 ,
"CONTROL ROD COMPONENTS" .
CAUTION:
Do not push the bracket.
Checking of A/T PositionNCS001I8
1. Place selector lever in “P” position, and turn ignition switch ON.
2. Check selector lever can be shifted to other than “P” position when brake pedal is depressed. Also check selector lever can be shifted from “P” position only when brake pedal is depressed.
3. Move the selector lever and check for excessive effort, sticking, noise or rattle.
4. Check the selector lever stops at each position with the feel of engagement when it is moved through all the positions. Check whether or not the actual position the selector lever is in matches the position shown
by the shift position indicator and the transmission body.
5. The method of operating the lever to individual positions cor- rectly should be as shown in the figure.
6. When selector button is pressed in “P”, “R”, or “N” position with- out applying forward/backward force to selector lever, check but-
ton operation for sticking.
7. Check the back-up lamps illuminate only when lever is placed in the “R” position. Check the back-up lamps does not illuminate
when selector lever is pushed against “R” position in the “P” or
“N” position.
8. Check the engine can only be started with the selector lever in the “P” and “N” positions. (With selector lever in the “P” position,
engine can be started even when selector lever is moved for-
ward and backward.)
9. Check transmission is locked completely in “P” position.
10. When selector lever is set to manual shift gate, check manual mode is displayed on combination meter. Shift selector lever to “+” and “-” sides, and check set shift position changes. (Only while a vehicle is oper-
ating.)
SCIA5736E
SCIA2119E
SCIA7465E

ON-VEHICLE SERVICE AT-251
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Revision: 2006 July 2007 FX35/FX45
REMOVAL
1. Drain ATF through drain plug.
2. Remove exhaust front tube and center muffler with power tool. Refer to EX-3, "
Components" .
3. Remove rear propeller shaft. Refer to PR-9, "
Removal and Installation" .
4. Remove control rod. Refer to AT- 2 3 0 , "
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 6 6 , "
Removal and Installation (2WD
Models)" .
7. Remove engine mounting insulator (rear). Refer to AT- 2 6 6 , "
Removal and Installation (2WD Models)" .
8. Remove tightening bolts for rear extension assembly and trans- mission case.
9. Tap rear extension assembly with soft hammer.
10. Remove rear extension assembly from transmission case. (With needle bearing.)
SCIA6941E
SCIA3432E
SCIA3431E

ON-VEHICLE SERVICE AT-257
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Revision: 2006 July 2007 FX35/FX45
10. Apply recommended sealant (Genuine Anaerobic Liquid Gasket
or equivalent. Refer to GI-48, "
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 mounting bolts to 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 6 6 , "
Removal and Installation (2WD Models)" .
14. Install rear engine mounting member. Refer to AT- 2 6 6 , "
Removal and Installation (2WD Models)" .
15. Install control rod. Refer to AT- 2 3 0 , "
Control Rod Removal and Installation" .
16. Install rear propeller shaft. Refer to PR-9, "
Removal and Installation" .
17. Install exhaust front tube and center muffler. Refer to EX-3, "
Components" .
18. Install drain plug in oil pan, and then tighten drain plug to the specified torque. Refer to AT- 2 3 9 , "
COMPO-
NENTS" .
CAUTION:
Do not reuse drain plug gasket.
19. Pour ATF into A/T assembly. Refer to AT- 1 2 , "
Changing A/T Fluid" .
SCIA8228E
SCIA3431E
SCIA6941E