2008 INFINITI FX35 no start

AT-6
< SERVICE INFORMATION >
INDEX FOR DTC
*1: These numbers are prescribed by SAE J2012.
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.DTC
Items
(CONSULT-III screen terms) Reference page
OBD-II Except OBD-II
CONSULT-III GST
(*1)
C O N S U LT- I I I
only “TRANSMIS- SION”
— P0615 STARTER RELAY/CIRC AT- 9 7
P0700 P0700 TCM AT- 1 0 1
P0705 P0705 PNP SW/CIRCAT- 1 0 2
P0710 P1710 ATF TEMP SEN/CIRCAT- 1 3 2
P0717 P0717 TURBINE REV S/CIRCAT- 1 0 6
P0720 P0720 VEH SPD SEN/CIR ATAT- 1 0 8
P0725 P0725 ENGINE SPEED SIG AT- 11 2
P0731 P0731 A/T 1ST GR FNCTNAT- 11 4
P0732 P0732 A/T 2ND GR FNCTNAT- 11 6
P0733 P0733 A/T 3RD GR FNCTNAT- 11 8
P0734 P0734 A/T 4TH GR FNCTNAT- 1 2 0
P0735 P0735 A/T 5TH GR FNCTNAT- 1 2 2
P0740 P0740 TCC SOLENOID/CIRCAT- 1 2 4
P0744(*2)P0744 A/T TCC S/V FNCTNAT- 1 2 6
P0745 P0745 L/PRESS SOL/CIRC AT- 1 2 8
P1705 P1705 TP SEN/CIRC A/TAT- 1 3 0
— P1721 VEH SPD SE/CIR-MTRAT- 1 3 7
P1730 P1730 A/T INTERLOCK AT- 1 3 9
— P1731 A/T 1ST E/BRAKINGAT- 1 4 1
P1752 P1752 I/C SOLENOID/CIRC AT- 1 4 3
P1757 P1757 FR/B SOLENOID/CIRCAT- 1 4 5
P1762 P1762 D/C SOLENOID/CIRCAT- 1 4 7
P1767 P1767 HLR/C SOL/CIRCAT- 1 4 9
P1772 P1772 LC/B SOLENOID/CIRCAT- 1 5 1
P1774(*2)P1774 LC/B SOLENOID FNCTAT- 1 5 3
— P1815 MANU MODE SW/CIRC AT- 1 5 5
U1000 U1000 CAN COMM CIRCUIT AT- 9 4
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A/T FLUIDAT-11
< SERVICE INFORMATION >
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A/T FLUID
Changing A/T FluidINFOID:0000000001327128
1. Warm up ATF.
2. Stop engine.
3. Loosen the level gauge bolt.
4. Drain ATF from drain plug and refill with new ATF. Always refill same volume with drained ATF.
 To replace the ATF, pour in new ATF at the A/T fluid chargingpipe with the engine idling, at the same time drain the old ATF
from the radiator cooler hose return side.
 When the color of the ATF coming out is almost same as the
color of the new ATF, the replacement is complete. The
amount of new ATF to use should be 30 to 50% increase of
the stipulated amount.
CAUTION:
 Use only Genuine NISSAN Matic J ATF. Do not mix with other ATF.
 Using ATF other than Genuine NISSAN Matic J AT F will cause deterioration in driveability and A/
T durability, and may damage the A/T, which is not covered by the warranty.
 When filling ATF, take care not to scatter heat generating parts such as exhaust.
 Do not reuse drain plug gasket.
5. Run engine at idle speed for 5 minutes.
6. Check A/T fluid level and condition. Refer to AT- 11 , "
Checking A/T Fluid". If ATF is still dirty, repeat step 2.
through 5.
7. Install the removed A/T fluid level gauge into A/T fluid charging pipe.
8. Tighten the level gauge bolt.
Checking A/T FluidINFOID:0000000001327129
1. Warm up engine.
2. Check for A/T fluid leakage.
3. Loosen the level gauge bolt.
4. Before driving, A/T fluid level can be checked at A/T fluid tem- peratures of 30 to 50 °C (86 to 122 °F) using “COLD” range on A/
T fluid level gauge as follows.
a. Park vehicle on level surface and set parking brake.
b. Start engine and move selector lever through each gear posi- tion. Leave selector lever in “P” position.
c. Check A/T fluid level with engine idling.
d. Remove A/T fluid level gauge and wipe clean with lint-free paper.
CAUTION:ATF: Genuine NISSAN Matic J ATF
Fluid capacity: 10.3 (10-7/8 US qt, 9-1/8 lmp qt)
Drain plug:
: 34 N·m (3.5 kg-m, 25 ft-lb)
Level gauge bolt: : 5.1 N·m (0.52 kg-m, 45 in-lb)
SCIA4896E
SCIA7120E
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AT-18
< SERVICE INFORMATION >
A/T CONTROL SYSTEM
Cross-Sectional View (V K45DE Models for AWD)
INFOID:0000000001327133
Shift MechanismINFOID:0000000001327134
The A/T uses compact triple planetary gear systems to improve power transmission efficiency, simplify con-
struction and reduce weight.
It also employs an optimum shift control and super wide gear ratios. They improve starting performance and
acceleration during medium and high-speed operation.
CONSTRUCTION
1. Front planetary gear 2. Mid planetary gear 3. Rear planetary gear
4. Direct clutch 5. High and low reverse clutch 6. Reverse brake
7. Drum support 8. Forward brake 9. Low coast brake
10. Input shaft 11. Torque converter 12. Oil pump
13. Front brake 14. 3rd one-way clutch 15. Input clutch
16. 1st one-way clutch 17. Control valve with TCM 18. Forward one-way clutch
19. Adapter case 20. Output shaft
SCIA5268E
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A/T CONTROL SYSTEMAT-29
< SERVICE INFORMATION >
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TCM FunctionINFOID:0000000001327135
The function of the TCM is to:
 Receive input signals sent from various switches and sensors.
 Determine required line pressure, shifting point, lock-up operation, and engine brake operation.
 Send required output signals to the respective solenoids.
CONTROL SYSTEM OUTLINE
The automatic transmission senses vehicle operating condi tions through various sensors or signals. It always
controls the optimum shift position and reduces shifting and lock-up shocks.
1. Front brake 2. Input clutch 3. Direct clutch
4. High and low reverse clutch 5. Reverse brake 6. Forward brake
7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch
10. 3rd one-way clutch 11. Front sun gear 12. Input shaft
13. Mid internal gear 14. Front internal gear 15. Rear carrier
16. Rear sun gear 17. Mid sun gear 18. Front carrier
19. Mid carrier 20. Rear internal gear 21. Output shaft
22. Parking gear 23. Parking pawl
SCIA1519E
SENSORS (or SIGNALS)
⇒TCM
⇒ACTUATORS
PNP switch
Accelerator pedal position signal
Closed throttle position signal
Wide open throttle position signal
Engine speed signal
A/T fluid temperature sensor
Revolution sensor
Vehicle speed signal
Manual mode switch signal
Stop lamp switch signal
Turbine revolution sensor
ATF pressure switch Shift control
Line pressure control
Lock-up control
Engine brake control
Timing control
Fail-safe control
Self-diagnosis
CONSULT-III co
mmunication
line
Duet-EA control
CAN system Input clutch solenoid valve
Direct clutch solenoid valve
Front brake solenoid valve
High and low reverse clutch sole-
noid valve
Low coast brake solenoid valve
Torque converter clutch solenoid
valve
Line pressure solenoid valve
A/T CHECK indicator lamp
Starter relay
Back-up lamp relay
:

A/T CONTROL SYSTEMAT-31
< SERVICE INFORMATION >
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Input/Output Signal of TCMINFOID:0000000001327137
*1: Spare for vehicle speed sensor·A/T (revolution sensor)
*2: Spare for accelerator pedal position signal
*3: If these input and output signals are different, the TCM triggers the fail-safe function.
*4: Used as a condition for starting self-diagnostics; if self-diagnostics are not started, it is judged that there is some kin d of error.
*5: Input by CAN communications
*6: Output by CAN communications
Line Pressure ControlINFOID:0000000001327138
 When an input torque signal equivalent to the engine drive force is sent from the ECM to the TCM, the TCM
controls the line pressure solenoid.
Control item Line
pressure control Vehicle
speed
control Shift
control Lock-up
control Engine
brake
control Fail-safe
function (*3) Self-diag-
nostics
function
Input Accelerator pedal position signal
(*5)XXXXXXX
Vehicle speed sensor A/T
(revolution sensor) XXXXXXX
Vehicle speed sensor MTR
(*1) (*5)X
Closed throttle position signal
(*5)X (*2) X X X X (*4)
Wide open throttle position signal
(*5)XX (*4)
Turbine revolution sensor 1 X X X X X
Turbine revolution sensor 2
(for 4th speed only) XXXXX
Engine speed signals
(*5)XXXXXXX
Stop lamp switch signal
(*5)XXX X (*4)
A/T fluid temperature sensors 1, 2 X X X X X X
ASCD or
ICC Operation signal
(*5)XXX
Overdrive cancel sig-
nal
(*5)X
Out-
put Direct clutch solenoid X X X X
Input clutch solenoid X X X X
High and low reverse clutch sole-
noid
XX XX
Front brake solenoid X X X X
Low coast brake solenoid (ATF
pressure switch 2) XX XXX
Line pressure solenoid X X X X X X X
TCC solenoid X X X
Self-diagnostics table
(*6)X
Starter relay XX
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AT-40
< SERVICE INFORMATION >
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Malfunction Indicator Lamp (MIL)
INFOID:0000000001327147
DESCRIPTION
The MIL is located on the instrument panel.
1. The MIL will light up when the ignition switch is turned ON with- out the engine running. This is a bulb check.
 If the MIL does not light up, refer to DI-34
, or see EC-591 (for
VQ35DE) or EC-1194
(for VK45DE).
2. When the engine is started, the MIL should go off. If the MIL remains on, the on board diagnostic system has
detected an engine system malfunction.
SEF217U
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TROUBLE DIAGNOSISAT-41
< SERVICE INFORMATION >
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TROUBLE DIAGNOSIS
DTC Inspection Priority ChartINFOID:0000000001327148
If some DTCs are displayed at the same time, per form inspections one by one based on the following priority
chart.
NOTE:
If “DTC U1000” is displayed with other DTCs, fi rst perform the trouble diagnosis for “DTC U1000 CAN
COMMUNICATION”. Refer to AT- 9 4
.
Fail-SafeINFOID:0000000001327149
The TCM has an electrical fail-safe mode. This mode make s it possible to operate even if there is an error in a
main electronic control input/output signal circuit.
In fail-safe mode, even if the selector lever is “D” or “M” mode, the transmission is fixed in 2nd, 4th or 5th
(depending on the breakdown position), so the customer should feel “slipping” or “poor acceleration”.
Even when the electronic circuits are normal, under s pecial conditions (for example, when slamming on the
brake with the wheels spinning drastically and stopping the ti re rotation), the transmission can go into fail-safe
mode. If this happens, switch OFF the ignition switch for 10 seconds, then switch it ON again to return to the
normal shift pattern. Therefore, t he customer's vehicle has returned to normal, so handle according to the
“WORK FLOW” (Refer to AT- 4 2
).
FAIL-SAFE FUNCTION
If any malfunction occurs in a sensor or solenoid, th is function controls the A/T to mark driving possible.
Vehicle Speed Sensor
Signals are input from two systems - from vehicle speed sensor A/T (revolution sensor) installed on the trans-
mission and from combination meter so normal driving is possible even if there is a malfunction in one of the
systems. And if vehicle speed sens or A/T (revolution sensor) has unus ual cases, 5th gear and manual mode
are prohibited.
Accelerator Pedal Position Sensor
If there is a malfunction in one of the systems, the accelerator opening angle is controlled by ECM according
to a pre-determined accelerator angle to make driving po ssible. And if there are malfunctions in tow systems,
the engine speed is fixed by ECM to a pre-determined engine speed to make driving possible.
Throttle Position Sensor
If there is a malfunction in one of the systems, the accelerator opening angle is controlled by ECM according
to a pre-determined accelerator angle to make driving po ssible. And if there are malfunctions in tow systems,
the accelerator opening angle is controlled by the idle signal sent from the ECM which is based on input indi-
cating either idle condition or off-idle condition (pre- determined accelerator opening) in order to make driving
possible.
PNP Switch
In the unlikely event that a malfunction signal enters t he TCM, the position indicator is switched OFF, the
starter relay is switched OFF (starter starting is di sabled), the back-up lamp relay switched OFF (back-up lamp
is OFF) and the position is fixed to the “D” position to make driving possible.
Starter Relay
The starter relay is switched OFF. (Starter starting is disabled.)
A/T Interlock
 If there is an A/T interlock judgment malfunction, t he A/T is fixed in 2nd gear to make driving possible.
NOTE:
When the vehicle is driven fixed in 2nd gear, a turbine revolution sensor malfunction is displayed,
but this is not a turbine r evolution sensor malfunction.
 When the coupling pattern below is detected, the fail- safe action corresponding to the pattern is performed.
A/T 1st Engine Braking
Priority Detected items (DTC)
1 U1000 CAN communication line
2 Except above
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TROUBLE DIAGNOSISAT-43
< SERVICE INFORMATION >
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Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such errors, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “DIAGNOSTIC WORKSHEET” as
shown on the example (Refer to "Diagnostic Worksheet Chart")
should be used.
Start your diagnosis by looking for “conventional” errors first. This will
help troubleshoot driveability errors on an electronically controlled
engine vehicle.
Also check related Service bulletins.
WORK FLOW
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malf unction. It is important to fully understand the symp-
toms or conditions for a customer complaint.
Make good use of the two sheets provided, “Informati on from Customer” and “Diagnostic worksheet chart”, to
perform the best troubleshooting possible.
Work Flow Chart
SEF234G
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