2007 INFINITI M35 torque

TROUBLE DIAGNOSIS
AT-85
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AT
Revision: 2007 April2007 M35/M45
57
OthersStrange noise in “D”
position.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Engine speed signalAT-124
3. CAN communication lineAT-105
4. Control valve with TCMAT-236
OFF vehicle5. Torque converterAT-301
6. Oil pump assemblyAT-322
7. Gear systemAT-281
8. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (VQ35DE Models for 2WD)" , AT- 1 8 ,
"Cross-Sectional View (VK45DE Models for 2WD)" o r AT- 1 9 ,
"Cross-Sectional View (AWD Models)" .)AT-301
58Vehicle dose not
decelerate by engine
brake.
Refer to AT-220,
"Vehicle Does Not
Decelerate by Engine
Brake" .ON vehicle1. PNP switchAT- 11 3
2. A/T fluid level and stateAT- 5 3
3. A/T positionAT-227
4. Manual mode switchAT-167
5. ATF pressure switch 5AT-176
6. CAN communication lineAT-105
7. Control valve with TCMAT-236
OFF vehicle8. Input clutchAT-3279. High and low reverse clutchAT-339
10. Direct clutchAT-341
59Engine brake does
not work M5 → M4.ON vehicle1. PNP switchAT- 11 3
2. A/T fluid level and stateAT- 5 3
3. A/T positionAT-227
4. Manual mode switchAT-167
5. ATF pressure switch 1AT-172
6. CAN communication lineAT-105
7. Control valve with TCMAT-236
OFF vehicle 8. Front brake (brake band) AT-301
60Engine brake does
not work M4 → M3.ON vehicle1. PNP switchAT- 11 3
2. A/T fluid level and stateAT- 5 3
3. A/T positionAT-227
4. Manual mode switchAT-167
5. ATF pressure switch 1 and ATF pressure switch 3AT-172,
AT-174
6. CAN communication lineAT-105
7. Control valve with TCMAT-236
OFF vehicle8. Front brake (brake band)AT-3019. Input clutchAT-327
No. Item Symptom Condition Diagnostic ItemReference
page

AT-86
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
61
OthersEngine brake does
not work M3 → M2.ON vehicle1. PNP switchAT- 11 3
2. A/T fluid level and stateAT- 5 3
3. A/T positionAT- 2 2 7
4. Manual mode switchAT- 1 6 7
5. ATF pressure switch 6AT- 1 7 8
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 3 6
OFF vehicle8. Front brake (brake band)AT- 3 0 19. Input clutchAT- 3 2 7
10. High and low reverse clutchAT- 3 3 9
62Engine brake does
not work M2 → M1.ON vehicle1. PNP switchAT- 11 3
2. A/T fluid level and stateAT- 5 3
3. A/T positionAT- 2 2 7
4. Manual mode switchAT- 1 6 7
5. ATF pressure switch 5AT- 1 7 6
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 3 6
OFF vehicle8. Input clutchAT- 3 2 79. High and low reverse clutchAT- 3 3 9
10. Direct clutchAT- 3 4 1
63 Maximum speed low.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Line pressure testAT- 5 5
3. Accelerator pedal position sensorAT- 1 3 2
4. CAN communication lineAT- 1 0 5
5. Direct clutch solenoid valveAT- 1 5 5
6. Control valve with TCMAT- 2 3 6
OFF vehicle7. Torque converter AT- 3 0 1
8. Oil pump assemblyAT- 3 2 2
9. Input clutchAT- 3 2 7
10. Gear systemAT- 2 8 1
11. High and low reverse clutchAT- 3 3 9
12. Direct clutchAT- 3 4 1
13. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-17, "
Cross-Sectional View (VQ35DE Models for 2WD)" ,
AT-18, "
Cross-Sectional View (VK45DE Models for 2WD)" or
AT-19, "
Cross-Sectional View (AWD Models)" .)AT- 3 0 1
14. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (VQ35DE Models for 2WD)" , AT-18,
"Cross-Sectional View (VK45DE Models for 2WD)" o r AT-19,
"Cross-Sectional View (AWD Models)" .)AT- 3 0 1
No. Item Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
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Revision: 2007 April2007 M35/M4564
OthersExtremely large
creep.ON vehicle1. Engine idle speed EC-83
(for
VQ35DE
engine),
EC-785

(for
VK45DE
engine)
2. CAN communication lineAT-105
3. ATF pressure switch 5AT-176
OFF vehicle 4. Torque converterAT-301
65With selector lever in
“P” position, vehicle
does not enter parking
condition or, with
selector lever in
another position, park-
ing condition is not
cancelled.
Refer to AT-191, "
In
“P” Position, Vehicle
Moves When Pushed"
.ON vehicle1. PNP switchAT- 11 3
2. A/T positionAT-227
OFF vehicle 3. Parking componentsAT-250

(2WD
models) or
AT-301

(AWD
models)
66Vehicle runs with A/T
in “P” position.ON vehicle1. PNP switchAT- 11 3
2. A/T fluid level and stateAT- 5 3
3. A/T positionAT-227
4. Control valve with TCMAT-236
OFF vehicle5. Parking componentsAT-250

(2WD
models) or
AT-301

(AWD
models)
6. Gear systemAT-281
67Vehicle runs with A/T
in “N” position.
Refer to AT-192, "In
“N” Position, Vehicle
Moves" .ON vehicle1. PNP switchAT- 11 3
2. A/T fluid level and stateAT- 5 3
3. A/T positionAT-227
4. Control valve with TCMAT-236
OFF vehicle5. Input clutchAT-327
6. Gear systemAT-281
7. Direct clutchAT-341
8. Reverse brakeAT-301
9. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT- 1 7 , "
Cross-Sectional View (VQ35DE Models for 2WD)" ,
AT- 1 8 , "
Cross-Sectional View (VK45DE Models for 2WD)" or
AT- 1 9 , "
Cross-Sectional View (AWD Models)" .)AT-301
10. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-17,
"Cross-Sectional View (VQ35DE Models for 2WD)" , AT- 1 8 ,
"Cross-Sectional View (VK45DE Models for 2WD)" o r AT- 1 9 ,
"Cross-Sectional View (AWD Models)" .)AT-301
No. Item Symptom Condition Diagnostic ItemReference
page

AT-88
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
68
OthersEngine does not start
in “N” or “P” position.
Refer to AT-190, "Engine Cannot Be
Started in “P” or “N”
Position" .ON vehicle1. Push-button ignition switch and starterPG-3
, SC-
8
2. A/T positionAT- 2 2 7
3. PNP switchAT- 11 3
69Engine starts in posi-
tions other than “N” or
“P”.ON vehicle1. Push-button ignition switch and starterPG-3
, SC-
8
2. A/T positionAT- 2 2 7
3. PNP switchAT- 11 3
70 Engine stall.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Engine speed signalAT- 1 2 4
3. Turbine revolution sensorAT- 11 7
4. Torque converter clutch solenoid valveAT- 1 2 6
5. CAN communication lineAT- 1 0 5
6. Control valve with TCMAT- 2 3 6
OFF vehicle 7. Torque converterAT- 3 0 1
71Engine stalls when
selector lever shifted
“N” → “D”or “R”.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Engine speed signalAT- 1 2 4
3. Turbine revolution sensorAT- 11 7
4. Torque converter clutch solenoid valveAT- 1 2 6
5. CAN communication lineAT- 1 0 5
6. Control valve with TCMAT- 2 3 6
OFF vehicle 7. Torque converterAT- 3 0 1
72Engine speed does
not return to idle.
Refer to AT-212,
"Engine Speed Does
Not Return to Idle" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. ATF pressure switch 5 and direct clutch solenoid valveAT- 1 7 6,
AT- 1 5 5

3. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 2
,
AT- 1 5 1
4. Accelerator pedal position sensorAT- 1 3 2
5. Vehicle speed sensor·A/T and vehicle speed sensor·MTRAT- 11 9,
AT- 1 4 0
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 3 6
OFF vehicle8. Front brake (brake band)AT- 3 0 19. Direct clutchAT- 3 4 1
No. Item Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-97
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Revision: 2007 April2007 M35/M45
GEAR — XGear position recognized by the TCM updated
after gear-shifting.
ENGINE SPEED (rpm) X X
TURBINE REV (rpm) X X
OUTPUT REV (rpm) X X
GEAR RATIO — X
TC SLIP SPEED (rpm) — XDifference between engine speed and torque
converter input shaft speed.
F SUN GR REV (rpm) — —
F CARR GR REV (rpm) — —
ATF TEMP SE 1 (V) X —
ATF TEMP SE 2 (V) X —
AT F T E M P 1 (°C) — X
AT F T E M P 2 (°C) — X
BATTERY VOLT (V) X —
ATF PRES SW 1 (ON/OFF) X X (for FR/B solenoid)
ATF PRES SW 2 (ON/OFF) X X (for LC/B solenoid)
ATF PRES SW 3 (ON/OFF) X X (for I/C solenoid)
ATF PRES SW 5 (ON/OFF) X X (for D/C solenoid)
ATF PRES SW 6 (ON/OFF) X X (for HLR/C solenoid)
PNP SW 1 (ON/OFF) X —
PNP SW 2 (ON/OFF) X —
PNP SW 3 (ON/OFF) X —
PNP SW 4 (ON/OFF) X —
1 POSITION SW (ON/OFF) X —
SLCT LVR POSI — XSelector lever position is recognized by the
TCM.
For fail-safe operation, the specific value used
for control is displayed.
OD CONT SW (ON/OFF) X —
Not mounted but displayed. POWERSHIFT SW (ON/OFF) X —
HOLD SW (ON/OFF) X —
MANU MODE SW (ON/OFF) X —
NON M-MODE SW (ON/OFF) X —
UP SW LEVER (ON/OFF) X —
DOWN SW LEVER (ON/OFF) X —Monitored item (Unit)Monitor Item Selection
Remarks ECU
INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION
FROM
MENU

AT-104
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
Judgement Self-diagnosis Code
If there is a malfunction, the lamp lights up for the time corresponding to the suspect circuit.
Erase Self-diagnosis

In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is
stored into the control unit as necessary during use by the user. This memory is not erased no matter how
many times the ignition switch is turned ON and OFF.

However, this information is erased by turning ignition switch OFF after performing self-diagnostics or by
erasing the memory using the CONSULT-II.
No. Malfunctioning item No. Malfunctioning item
1 Revolution sensor AT- 11 9
10 A/T fluid temperature sensor AT-135
2 Direct clutch solenoid valve AT- 1 5 5 , AT- 1 5 711 Turbine revolution sensor AT- 11 7
3Torque converter clutch solenoid valve AT- 1 2 6 , AT-
12812 A/T interlock AT-142
4 Line pressure solenoid valve AT- 1 3 013 A/T 1st engine braking AT- 1 4 5
5 Input clutch solenoid valve AT-147 , AT-14914 Start signal AT-108
6 Front brake solenoid valve AT-151 , AT-15315 Accelerator pedal position sensor AT-132
7 Low coast brake solenoid valve AT-163 , AT-16516 Engine speed signal AT-124
8High and low reverse clutch solenoid valve AT-159 ,
AT- 1 6 117 CAN communication line AT-105
9 PNP switch AT- 11 3
SCIA5767E

AT-126
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
Revision: 2007 April2007 M35/M45
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVEPFP:31940
DescriptionNCS001LR

The torque converter clutch solenoid valve is activated, with the gear in D3 , D4 , D5 , M4 and M5 by the
TCM in response to signals sent from the vehicle speed sensor and accelerator pedal position sensor
(throttle position sensor). Torque converter clutch piston operation will then be controlled.

Lock-up operation, however, is prohibited when A/T fluid temperature is too low.

When the accelerator pedal is depressed (less than 1/8) in lock-up condition, the engine speed should not
change abruptly. If there is a big jump in engine speed, there is no lock-up.
CONSULT-II Reference ValueNCS001LS
On Board Diagnosis LogicNCS001LT

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0740 TCC SOLENOID/CIRC” with CONSULT-II or 3rd judgement flicker with-
out CONSULT-II is detected under the following conditions.
–When TCM detects an improper voltage drop when it tries to operate the solenoid valve.
–When TCM detects as irregular by comparing target value with monitor value.
Possible CauseNCS001LU

Torque converter clutch solenoid valve

Harness or connectors
(Solenoid circuit is open or shorted.)
DTC Confirmation ProcedureNCS001LV
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “A/T” with CONSULT-II and check monitor “VHCL/S SE-A/T”,
“ACCELE POSI” and “SLCT LVR POSI ”. .
3. Touch “START”.
4. Start engine and maintain the following conditions for at least 5
consecutive seconds.
VHCL/S SE-A/T: 80 km/h (50 MPH) or more
ACCELE POSI: 0.5/8 - 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
5. If DTC is detected go to AT- 1 2 7 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value (Approx.)
TCC SOLENOID Lock-up is active 0.4 - 0.6 A
BCIA0030E

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-127
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Revision: 2007 April2007 M35/M45
Diagnostic ProcedureNCS001LW
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch ON.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T”
with CONSULT-II.
3. Start engine.
4. Read out the value of “TCC SOLENOID” while driving.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to AT- 1 8 0 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. DETECT MALFUNCTIONING ITEM
Check the following.

The A/T assembly harness connector pin terminals for damage or loose connection with harness connec-
tor.
OK or NG
OK >> Replace the control valve with TCM. Refer to AT- 2 3 6 , "Control Valve With TCM and A/T Fluid
Temperature Sensor 2" .
NG >> Repair or replace damaged parts.
4. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT- 1 2 6 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
Item name Condition Display value (Approx.)
TCC SOLENOID Lock-up is active 0.4 - 0.6 A
SCIA4793E