sensor INFINITI FX35 2004 Service Manual

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-229
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
A/T Does Not Shift: 2nd gear → 1st gearACS007GX
SYMPTOM:
When shifted from M2 to M1 position in manual mode, does not downshift from 2nd to 1st gear.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 4 , "
SELF-DIAGNOSTIC RESULT MODE" .
Do the self-diagnostic results indicate PNP switch, ATF pressure switch 5?
YES >> Check the malfunctioning system. Refer to AT- 11 2 , "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" , AT- 1 8 2 , "DTC P1845 ATF PRESSURE SWITCH 5" .
NO >> GO TO 2.
2. CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to AT- 1 2 , "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 3.
NG >> Refill ATF.
3. CHECK CONTROL LINKAGE
Check the control linkage.

Refer to AT- 2 3 4 , "Checking of A/T Position" .
OK or NG
OK >> GO TO 4.
NG >> Adjust control linkage. Refer to AT- 2 3 4 , "
Adjustment of A/T Position" .
4. MANUAL MODE SWITCH
Check the manual mode switch. Refer to AT- 1 7 2 , "
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 4 2 , "
Control Valve with TCM and A/T Fluid Temperature Sensor 2" .
2. Check A/T fluid condition. Refer to AT- 5 1 , "
Fluid Condition
Check" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 9.
SAT638A
SCIA5199E

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-231
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
Vehicle Does Not Decelerate By Engine BrakeACS007GY
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 4 , "
SELF-DIAGNOSTIC RESULT MODE" .
Do the self-diagnostic results indicate PNP switch, ATF pressure switch 5?
YES >> Check the malfunctioning system. Refer to AT- 11 2 , "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" , AT- 1 8 2 , "DTC P1845 ATF PRESSURE SWITCH 5" .
NO >> GO TO 2.
2. CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to AT- 1 2 , "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 3.
NG >> Refill ATF.
3. CHECK CONTROL LINKAGE
Check the control linkage.

Refer to AT- 2 3 4 , "Checking of A/T Position" .
OK or NG
OK >> GO TO 4.
NG >> Adjust control linkage. Refer to AT- 2 3 4 , "
Adjustment of A/T Position" .
4. MANUAL MODE SWITCH
Check the manual mode switch. Refer to AT- 1 7 2 , "
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 4 2 , "
Control Valve with TCM and A/T Fluid Temperature Sensor 2" .
2. Check A/T fluid condition. Refer to AT- 5 1 , "
Fluid Condition
Check" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 9.
SAT638A
SCIA5199E

AT-242
ON-VEHICLE SERVICE
Revision: 2004 November 2004 FX35/FX45
ON-VEHICLE SERVICEPFP:00000
Control Valve with TCM and A/T Fluid Temperature Sensor 2ACS007GZ
COMPONENTS
CONTROL VALVE WITH TCM REMOVAL AND INSTALLATION
Removal
1. Disconnect the battery cable from the negative terminal.
2. Remove front cross bar. Refer to FSU-8, "
Components" .
3. Disconnect heated oxygen sensor 2 harness connector.
4. Drain ATF through drain plug.
5. Disconnect A/T assembly harness connector.
1. Transmission 2. Control valve with TCM 3. Bracket
4. A/T fluid temperature sensor 2 5. Oil pan gasket 6. Oil pan
7. Magnet 8. Drain plug gasket 9. Drain plug
10. Oil pan mounting bolt 11. Snap ring 12. O-ring
SCIA5137E

AT-244
ON-VEHICLE SERVICE
Revision: 2004 November 2004 FX35/FX45
11. Disconnect A/T fluid temperature sensor 2 connector.
CAUTION:
Be careful not to damage connector.
12. Straighten terminal clip to free A/T fluid temperature sensor 2
harness.
13. Disconnect revolution sensor connector.
CAUTION:
Be careful not to damage connector.
14. Straighten terminal clips to free revolution sensor harness.
15. Remove bolts A, B and C from control valve with TCM.
SCIA5023E
SCIA5146E
SCIA5024E
SCIA3969E
Bolt symbol Length mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
SCIA5139E

ON-VEHICLE SERVICE
AT-245
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
16. Remove control valve with TCM from transmission case.
CAUTION:
When removing, be careful with the manual valve notch and
manual plate height. Remove it vertically.
17. Remove A/T fluid temperature sensor 2 with bracket from con-
trol valve with TCM.
18. Remove bracket from A/T fluid temperature sensor 2.
19. Remove O-ring from A/T assembly harness connector.
SCIA5142E
SCIA5301E
SCIA5264E
SCIA5155E

AT-246
ON-VEHICLE SERVICE
Revision: 2004 November 2004 FX35/FX45
Installation
CAUTION:
After completing installation, check A/T fluid leakage and fluid level. Refer to AT- 1 2 , "
Changing A/T
Fluid" , AT- 1 2 , "Checking A/T Fluid" .
1. Install O-ring in A/T assembly harness connector.
CAUTION:

Do not reuse O-ring.

Apply ATF to O-ring.
2. Install A/T fluid temperature sensor 2 to bracket.
3. Install A/T fluid temperature sensor 2 in control valve with TCM.
(With bracket.)
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
4. Install control valve with TCM in transmission case.
CAUTION:

Make sure that turbine revolution sensor securely installs
turbine revolution sensor hole.

Hang down revolution sensor harness toward outside so
as not to disturb installation of control valve with TCM.

Adjust A/T assembly harness connector of control valve
with TCM to terminal hole of transmission case.
SCIA5155E
SCIA5264E
: 7.9 N·m (0.81 kg-m, 70 in-lb)
SCIA5301E
SCIA5034E

ON-VEHICLE SERVICE
AT-247
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45

Assemble it so that manual valve cutout is engaged with
manual plate projection.
5. Install bolts A, B and C in control valve with TCM.
6. Tighten bolt 1, 2 and 3 temporarily to prevent dislocation. After
that tighten them in order (1 → 2 → 3), and then tighten other
bolts.
7. Connect A/T fluid temperature sensor 2 connector.
8. Securely fasten A/T fluid temperature sensor 2 harness with ter-
minal clip.
SCIA5142E
Bolt symbol Length mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
SCIA5139E
: 7.9 N·m (0.81 kg-m, 70 in-lb)
SCIA5140E
SCIA5023E
SCIA5146E

AT-248
ON-VEHICLE SERVICE
Revision: 2004 November 2004 FX35/FX45
9. Connect revolution sensor connector.
10. Securely fasten revolution sensor harness with terminal clips.
11. Install magnets in oil pan.
12. Install oil pan to transmission case.
a. 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.
b. Install oil pan (with oil pan gasket) to transmission case.
CAUTION:

Install it so that drain plug comes to the position as
shown in the figure.

Be careful not to pinch harnesses.

Complete remove all moisture, oil and old gasket, etc.
from oil pan mounting surface.
SCIA5024E
SCIA3969E
SCIA5200E
SCIA2308E

ON-VEHICLE SERVICE
AT-249
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2004 November 2004 FX35/FX45
c. Tighten oil pan mounting bolts to the specified torque in numeri-
cal order as shown in the figure after temporarily tightening
them.
CAUTION:
Do not reuse oil pan mounting bolts.
13. Install drain plug to oil pan.
CAUTION:
Do not reuse drain plug gasket.
14. Pull up A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
15. Install snap ring to A/T assembly harness connector.
16. Connect A/T assembly harness connector.
17. Connect heated oxygen sensor 2 harness connector.
18. Install front cross bar. Refer to FSU-8, "
Components" .
19. Pour ATF into transmission assembly. Refer to AT- 1 2 , "
Chang-
ing A/T Fluid" .
20. Connect the battery cable to the negative terminal.
A/T FLUID TEMPERATURE SENSOR 2 REMOVAL AND INSTALLATION
Removal
1. Disconnect the battery cable from the negative terminal.
2. Remove front cross bar. Refer to FSU-8, "
Components" .
3. Disconnect heated oxygen sensor 2 harness connector.
4. Drain ATF through drain plug.
5. Remove oil pan and oil pan gasket.: 7.9 N·m (0.81 kg-m, 70 in-lb)
: 34 N·m (3.5 kg-m, 25 ft-lb)
SCIA2492E
SCIA5038E
SCIA5039E
SCIA2308E

AT-250
ON-VEHICLE SERVICE
Revision: 2004 November 2004 FX35/FX45
6. Check foreign materials in oil pan to help determine causes of
malfunction. If the fluid 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" .
7. Disconnect A/T fluid temperature sensor 2 connector.
CAUTION:
Be careful not to damage connector.
8. Straighten terminal clip to free A/T fluid temperature sensor 2
harness.
9. Remove A/T fluid temperature sensor 2 with bracket from con-
trol valve with TCM.
10. Remove bracket from A/T fluid temperature sensor 2.
SCIA5199E
SCIA5023E
SCIA5146E
SCIA5302E
SCIA5264E