2007 INFINITI M35 sensor

TROUBLE DIAGNOSIS FOR SYMPTOMS
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Revision: 2007 April2007 M35/M45
A/T Does Not Shift: 3rd Gear → 2nd GearNCS001QI
SYMPTOM:
When shifted from M3 to M2 position in manual mode, does not downshift from 3rd to 2nd 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.49).
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.

TROUBLE DIAGNOSIS FOR SYMPTOMS
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Revision: 2007 April2007 M35/M45
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.50).
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.
8. 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.
9. 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.50).
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

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.

A/T SHIFT LOCK SYSTEM
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Revision: 2007 April2007 M35/M45
3. DETECT MALFUNCTIONING ITEM
Check the following.

Harness for short or open between battery and stop lamp switch harness connector E124 terminal 1

Harness for short or open between stop lamp switch harness connector E124 terminal 2 and shift lock
relay E35 terminal 2

10A fuse [No.20, located in the fuse block (J/B)]

Stop lamp switch
–Check continuity between stop lamp switch harness connector E124 terminals 1 and 2
Check stop lamp switch after adjusting brake pedal — refer to BR-6, "
BRAKE PEDAL" .

ICC brake hold relay. Refer to ACS-69, "ICC Brake Hold Relay" . (With ICC only)

Harness for short or open between battery and ICC brake hold relay E80 terminal 3. Refer to ACS-50,
"DTC 13 STOP LAMP RLY FIX" . (With ICC only)

Harness for short or open between ICC brake hold relay E80 terminal 5 and shift lock relay E35 terminal
2. (With ICC only)

Harness for short or open between ICC sensor integrated unit harness connector E61 terminal 2 and ICC
brake hold relay E80 terminal 2. Refer to ACS-50, "
DTC 13 STOP LAMP RLY FIX" . (With ICC only)

Harness for short or open between ICC brake hold relay E80 terminal 1 and ground. Refer to ACS-50,
"DTC 13 STOP LAMP RLY FIX" . (With ICC only)
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect shift lock relay.
3. Check continuity between shift lock relay E35 terminal 1 and
ground.
CAUTION:
Connect test probe (BLACK) to shift lock relay, and test
probe (RED) to ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
SCIA4990E
Continuity should exist.
SCIA6931E

AT-236
ON-VEHICLE SERVICE
Revision: 2007 April2007 M35/M45
ON-VEHICLE SERVICEPFP:00000
Control Valve With TCM and A/T Fluid Temperature Sensor 2NCS001QT
COMPONENTS
1. A/T 2. Snap ring 3. Sub-harness
4. Control valve with TCM 5. Bracket 6. A/T fluid temperature sensor 2
7. Oil pan gasket 8. Clip 9. Bracket (VK45DE)
10. Bracket (VK45DE) 11. Oil pan mounting bolt 12. Oil pan
13. Magnet 14. Drain plug 15. Drain plug gasket
16. Terminal cord assembly 17. O-ring
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to GI-11, "
Components" .
SCIA8045E

ON-VEHICLE SERVICE
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Revision: 2007 April2007 M35/M45
CONTROL VALVE WITH TCM REMOVAL AND INSTALLATION
Removal
1. Disconnect the battery cable from the negative terminal.
2. Drain ATF through drain plug.
3. Disconnect heated oxygen sensor 2 harness connector.
4. Disconnect A/T assembly harness connector.
5. Remove snap ring from A/T assembly harness connector.
6. Push A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
7. Remove 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. 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)
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AT-238
ON-VEHICLE SERVICE
Revision: 2007 April2007 M35/M45
8. 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" .
9. Remove magnets from oil pan.
10. Disconnect A/T fluid temperature sensor 2 connector.
CAUTION:
Be careful not to damage connector.
11. Straighten terminal clip to free terminal cord assembly A/T fluid
temperature sensor 2 harness.
12. Disconnect revolution sensor connector.
CAUTION:
Be careful not to damage connector.
SCIA5199E
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ON-VEHICLE SERVICE
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Revision: 2007 April2007 M35/M45
13. Straighten terminal clip to free revolution sensor harness.
14. Remove bolts A, B and C from control valve with TCM.
15. 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.
16. Remove A/T fluid temperature sensor 2 with bracket from con-
trol valve with TCM.
17. Remove bracket from A/T fluid temperature sensor 2.
SCIA7525E
Bolt symbol Length mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
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