stop start INFINITI FX35 2008 Service Manual

DESCRIPTIONACS-9
< SERVICE INFORMATION > [ICC]
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ACTIVE TEST ITEM LIST
Component DescriptionINFOID:0000000001328807
CAN CommunicationINFOID:0000000001328808
CAN (Controller Area Network) is a serial communication li ne for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tric control units are equipped onto a vehicle, and eac h control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN COMMUNICATION UNIT
Refer to LAN-43, "CAN System Specification Chart".
Output CONSULT-III ICC
[ACTIVE TEST]
Item CAN Description
Combination
meter ICC BUZZER 1
×Able to start ICC warning chime with a driving signal from ICC unit.
METER LAMP ×Able to turn ICC system display ON with a driving signal from ICC unit.
ICC brake hold
relay STOP LAMP Able to start ICC brake hold relay with a driving signal from ICC unit.
Booster sole-
noid BOOSTER SOL/V
3
Able to start booster solenoid with a driving signal from ICC unit.
ComponentVehicle-to-
vehicle
distance
control mode Conventional
(fixed speed)
cruise
control mode Brake assis
(with preview function) Description
ICC unit ××× Operates electric throttle control actuator and brake
booster based on that sensor signals and CAN commu-
nication data, then controls vehicle distance.
ICC sensor ×× Irradiates laser beam, and receives reflected laser beam
to measure distance from preceding vehicle.
ECM ××× Transmits throttle position signal and ICC steering switch
signal to ICC unit through CAN communication.
ABS actuator and electric
unit (control unit) ××× Transmits wheel speed sensor signal to ICC unit through
CAN communication.
Brake pressure sensor ×× Detects fluid pressure in master cylinder.
Brake booster ×× Adjusts brake fluid pressure, based on command from
ICC unit.
BCM × Transmit front wiper request signal to ICC unit through
CAN communication.
TCM ×× Transmits gear position signal and output shaft revolu-
tion signal to ICC unit through CAN communication.
Unified meter and A/C amp. ××× Receives ICC system display signal, ICC warning lamp
signal and buzzer output signal from ICC unit through
CAN communication.
ICC brake switch, stop lamp
switch ××× Transmit operating signal to ICC unit when touching
brake pedal. ICC unit cancels cruise system at driver's
brake operation.
ICC brake hold relay × Receives stop lamp driving signal from ICC unit, and
turns stop lamp ON.
Parking brake switch ×× The cruise system is cancelled when applied.
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ACS-28
< SERVICE INFORMATION >[ICC]
TERMINALS AND REFERENCE VALUE
Terminal and Reference Value for ICC Sensor
INFOID:0000000001328821
19 (B)
20 (B)
46 (B) GroundGround ON — Approx. 0
22 (G/Y) Brake release switch
(normally open) ONDepress the brake pedal Approx. 10
Release the brake pedal Approx. 0
24 (R) Brake pressure sensor signal
ground
—— Approx. 0
29 (SB) ICC brake switch
(normal closed) ONSelector
lever: Not
in “N” or
“P” posi-
tion Depress the brake
pedal
Approx. 0
Release the brake
pedal Approx. 12
30 (Y) DDL-TX — — —
33 (W)
42 (W) Ignition switch ON or START ON — Battery voltage
38 (P/B) Stop lamp switch
(normally open) ONDepress the brake pedal Approx. 12
Release the brake pedal Approx. 0
39
(G/OR) DDL-RX — — —
40
(PU/W)
GroundParking brake signal ON
Depress the parking brake Approx. 0
Release the parking brake Approx. 12
47 (W/R) Stop lamp drive output signal ON Brake operating with ICC sys-
tem
Approx. 12
Brake not operating with ICC
system Approx. 0
Te r m i n a l s
(Wire color) Item Condition
Voltage (V)
+– Ignition
switch Operation
Te r m i n a l s
(Wire color) Item Condition
Voltage (V)
+– Ignition
switch Operation
1 (Y)
Ground ICC sensor power supply ON — Battery voltage
3 (L) CAN-H — — —
4 (B) Ground — — Approx. 0
6 (R) CAN-L — — —
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ACS-32
< SERVICE INFORMATION >[ICC]
TROUBLE DIAGNOSIS —
GENERAL DESCRIPTION
ACTIVE TEST
CAUTION:
 Never perform the active test while driving.
 Active test cannot be started while I CC system warning indicator illuminates.
ICC BUZZER 1
 Touch “ON” and “OFF” to check that ICC warni ng chime operates as in the following chart.
METER LAMP
 Start engine.
 Touch “ON” and “OFF” to check that ICC system display operates as in the following chart.
STOP LAMP
 Touch “ON” and “OFF” to check that stop la mp operates as in the following chart.
BOOSTER SOL/V 3
 Start engine.
 Touch any of “MODE 1”, “MODE 2”, “MODE 3” to che ck that following operation condition is caused by oper-
ating monitor and brake pedal.
 “START” is displayed 10 seconds after operation start. (Active test is completed.)
Self-Diagnostic FunctionINFOID:0000000001328824
WITH CONSULT-III
NP RANGE SW
[On/Off] ×× Indicates PNP switch signal read from ICC unit through CAN
communication (TCM transmits PNP switch signal through CAN
communication).
DISTANCE ×NOTE:
This item is displayed, but cannot monitor.
RELATIVE SPD ×NOTE:
This item is displayed, but cannot monitor.
STP LMP DRIVE
[On/Off] ××
Indicates [On/Off] status of brake hold relay drive output.
TURN SIGNAL ×× NOTE:
This item is displayed, but cannot monitor.
Monitored Item [unit]
ECU INPUT
SIGNALS MAIN
SIGNALS SELECTION
FROM
MENU Description
BUZZER O/P ON OFF
Buzzer sound Beep Not activated
METER LAMP ON OFF
ICC system display Full illumination OFF
STP LMP DRIVE ON OFF
Stop lamp Lamp ON Lamp OFF
PKIA9821E
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TROUBLE DIAGNOSIS — GENERAL DESCRIPTIONACS-33
< SERVICE INFORMATION > [ICC]
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1. Go to operation check after asking the cust omer for symptom information. Refer to ACS-11, "ICC System
Running Test".
2. Stop vehicle, turn ignition swit ch OFF, then connect CONSULT-III.
3. With engine started, check “Self Diagnostic Result” of ICC system.
4. Self-diagnostic result appears on screen. If “NO DTC ·· ·” is shown, check ICC warning lamp. If any mal-
function is indicated, GO TO step 5.
5. According to ACS-35, "
Diagnostic Trouble Code (DTC) Chart", perform appropriate check, and repair or
replace malfunctioning part as necessary.
6. Turn ignition switch OFF.
7. Start the engine and select “Self Diagnosti c Result” of ICC system, and erase DTC.
NOTE:
If the memory does not erase, go to 5.
8. Perform ICC system running test (drive vehicle wi th ICC system ON), and make sure that ICC warning
lamp does not illuminate.
WITHOUT CONSULT-III
1. Go to operation check after asking the cust omer for symptom information. Refer to ACS-11, "ICC System
Running Test".
2. Stop the vehicle to start the self-diagnosis.
3. Turn ignition switch OFF.
4. From 5 seconds through 15 seconds after turning ignition switch ON, press RESUME/ACCELERATE switch 5 times, and SET/
COAST switch 5 times.
NOTE:
 Never start engine.
 Never turn the MAIN switch ON.
 When operation above is not completed from 5 secondsthrough 15 seconds, start again from above go to 3.
 If self-diagnosis mode cannot be started after several
attempts, the ICC unit may have had malfunction. Repair or
replace it. Refer to ACS-59, "
SELF-DIAGNOSIS BY ICC SYS-
TEM DISPLAY WILL NOT RUN".
5. When self-diagnosis mode is started, DTC are shown on set vehicle speed indicator.
NOTE:
 DTC will disappear after 5 minutes.
 When more than one malfunction is detected, a maxi mum of 3 code numbers can be stored; the latest
malfunction will be displayed first.
6. Check ACS-35, "
Diagnostic Trouble Code (DTC) Chart", and repair or replace if necessary.
7. After repair, erase DTC stored in the ICC unit.
PKIA9675E
PKIA9820E
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ACS-34
< SERVICE INFORMATION >[ICC]
TROUBLE DIAGNOSIS —
GENERAL DESCRIPTION
8. DTC 55 will be shown.
9. Turn ignition switch OFF to exit the diagnosis.
10. Perform ICC system running test (drive vehicle wit h ICC system ON), and make sure that ICC warning
lamp (Orange) does not illuminate.
Self-Diagnostic Erasing Method
1. Stop the vehicle and turn the ignition switch OFF.
2. Turn ignition switch ON and start self-diagnosis.
3. During self-diagnosis mode, press CANCEL switch 5 times, and DISTANCE switch 5 times in this order. NOTE:
 Press them within 10 seconds after pressing CANCEL switch at first.
 When operation is not completed within 10 seconds, start again from step 2 above.
4. DTC 55 will be shown. NOTE:
DTC of an existing malfunction will not be erased.
5. Turn ignition switch OFF to exit the diagnosis.
6. Perform ICC system running test (drive vehicle wit h ICC system ON), and make sure that ICC system
warning lamp (Orange) does not illuminate.
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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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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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TROUBLE DIAGNOSISAT-41
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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-53
< SERVICE INFORMATION >
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Road TestINFOID:0000000001425855
DESCRIPTION
 The road test checks overall performance of the A/T and analyzes possible malfunction causes.
 The road test is carried out in the following three stages.
1. Check before engine is started.
2. Check at idle.
3. Cruise test
 Inspect all the items Part 1 to Part 3.
 Before beginning the road test, che ck the procedure and inspection items.
 Test all inspection items until the symptom is uncov ered. Diagnose NG items when all road tests are com-
plete.
CHECK BEFORE ENGINE IS STARTED
1.CHECK A/T CHECK INDICATOR LAMP
1. Park vehicle on level surface.
2. Move selector lever to “P” position.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
Does A/T CHECK indicator lamp light up for about 2 seconds?
YES - 1>> With CONSULT-III
1. Perform self-diagnostics and record all NG items on the “Diagnostic Worksheet Chart”.
2. Go to “CHECK AT IDLE”.
YES - 2>> Without CONSULT-III
1. Perform self-diagnostics and record all NG it ems on the “Diagnostic Worksheet Chart”. Refer
to AT-91, "
Diagnosis Procedure without CONSULT-III".
2. Go to “CHECK AT IDLE”.
NO >> Stop the road test and go to AT-170, "
A/T Check Indicator Lamp Does Not Come On".
CHECK AT IDLE
1.CHECK STARTING THE ENGINE
1. Park vehicle on level surface.
2. Move selector lever to “P” or “N” position.
3. Turn ignition switch OFF.
4. Start engine.
Does the engine start?
YES >> GO TO 2.
NO >> Stop the road test and go to AT-170, "
Engine Cannot Be Started in "P" or "N" Position".
Stall speedLine pressure does
not rise higher than
the line pressure for
idle.
Possible causes include a sensor malfunction or malfunction in the pressure adjustment function.
For example
 Accelerator pedal position signal malfunction
 TCM breakdown
 Line pressure solenoid malfunction (shorting, sticking in ON state)
 Pressure regulator valve or plug sticking
 Pilot valve sticking or pilot filter clogged
The pressure rises,
but does not enter
the standard posi-
tion. Possible causes include malfunctions in the pressure supply system and malfunction in the pres-
sure adjustment function.
For example
 Accelerator pedal position signal malfunction
 Line pressure solenoid malfunction (sticking, filter clog)
 Pressure regulator valve or plug sticking
 Pilot valve sticking or pilot filter clogged
Only low for a spe-
cific position Possible causes include an oil pressure leak in a passage or device related to the position after
the pressure is distributed by the manual valve.
Judgement Possible cause
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