service INFINITI FX35 2008 Service Manual

TROUBLE DIAGNOSISAT-85
< SERVICE INFORMATION >
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3. Display of solenoid valves on CONSULT-III changes at t he start of shifting, while gear position is displayed
upon completion of shifting (which is computed by TCM).
Item name Condition Display value (Approx.)
ATF TEMP SE 1 0°C (32 °F) − 20 °C (68 °F) − 80 °C (176 °F) 3.3
− 2.7 − 0.9 V
ATF TEMP SE 2 3.3 − 2.5 − 0.7 V
ATF TEMP 1 Ignition switch ON Measured ATF temperature is dis-
played.
TCC SOLENOID Lock-up is active 0.4 − 0.6 A
SLCT LVR POSI Selector lever in “N
” and “P” positions. N/P
Selector lever in “R” position. R
Selector lever in “D” position. D
VHCL/S SE-A/T During driving Approximately matches the speedom-
eter reading.
VEHICLE SPEED During driving Approximately matches the speedom-
eter reading.
ENGINE SPEED Engine running Closely matches the tachometer read-
ing.
LINE PRES SOL During driving 0.2 − 0.6 A
TURBINE REV During driving (lock-up ON) Approximately matches the engine
speed.
VHCL/S SE-MTR During driving Approximately matches the speedom-
eter reading.
ATF PRES SW 2 Low coast brake engaged. Refer to
AT- 1 8
.ON
Low coast brake disengaged. Refer to AT- 1 8
. OFF
I/C SOLENOID Input clutch disengaged. Refer to
AT- 1 8
.0.6 − 0.8 A
Input clutch engaged. Refer to AT- 1 8
.0 − 0.05 A
FR/B SOLENOID Front brake engaged. Refer to
AT- 1 8
.0.6 − 0.8 A
Front brake disengaged. Refer to AT- 1 8
. 0 − 0.05 A
D/C SOLENOID Direct clutch disengaged. Refer to
AT- 1 8
.0.6 − 0.8 A
Direct clutch engaged. Refer to AT- 1 8
.0 − 0.05 A
HLR/C SOL High and low reverse clutch disengaged. Refer to
AT- 1 8
.0.6 − 0.8 A
High and low reverse clutch engaged. Refer to AT- 1 8
.0 − 0.05 A
ON OFF SOL Low coast brake engaged. Refer to
AT- 1 8
.ON
Low coast brake disengaged. Refer to AT- 1 8
.OFF
MANU MODE SW Manual shift gate position (neutral) ON
Other than the above OFF
NON M-MODE SW Manual shift gate position OFF
Other than the above ON
UP SW LEVER Selector lever: + side ON
Other than the above OFF
DOWN SW LEVER Selector lever: - side ON
Other than the above OFF
STARTER RELAY Selector lever in “N
” and “P” positions. ON
Selector lever in other positions. OFF
ACCELE POSI Released accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8.0/8
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AT-86
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
SELF-DIAGNOSTIC RESULT MODE
After performing “SELF-DIAGNOSTIC RESULT MODE”, place check marks for results on the AT-42, "How to
Perform Trouble Diagnosis for Quick and Accurate Repair". Reference pages are provided following the items.
Display Items List
X: Applicable, —: Not applicable
CLSD THL POSReleased accelerator pedal. ON
Fully depressed accelerator pedal. OFF
W/O THL POS Fully depressed accelerator pedal. ON
Released accelerator pedal. OFF
BRAKE SW Depressed brake pedal. ON.
Released brake pedal. OFF
GEAR During driving. 1,2,3,4,5, Item name Condition Display value (Approx.)
Items (CONSULT-
III screen terms) Malfunction is detected when... TCM self-di-
agnosis OBD-II
(DTC)
Reference page
“TRANS-
MISSION”
with CON- SULT-III MIL indica-
tor lamp(*1),
“ENGINE”
with CON-
SULT-III or GST
CAN COMM CIR-
CUIT When TCM is not transmitting or receiving CAN communication sig-
nal for 2 seconds or more.
U1000 U1000
AT- 9 4
STARTER RELAY/
CIRCIf this signal is ON other than in “P” or “N” position, this is judged to
be a malfunction.
(And if it is OFF in “P” or “N” position, this too is judged to be a mal-
function.)
P0615 —
AT- 9 7
TCM TCM is malfunctioning. P0700 P0700 AT- 1 0 1
PNP SW/CIRC PNP switch 1-4 signals input with impossible pattern.
 “P” position is detected from “N” position without any other posi-
tion being detected in between. P0705 P0705
AT- 1 0 2
TURBINE REV S/
CIRC TCM does not receive the proper voltage signal from the sensor.
 TCM detects an irregularity only at position of 4th gear for turbine
revolution sensor 2. P0717 P0717
AT- 1 0 6
VEH SPD SEN/CIR
AT  Signal from vehicle speed sensor A/T (Revolution sensor) not in-
put due to cut line or the like.
 Unexpected signal input during running.
 After ignition switch is turned ON, unexpected signal input from vehicle speed sensor MTR before the vehicle starts moving. P0720 P0720
AT- 1 0 8
ENGINE SPEED
SIGTCM does not receive the CAN communication signal from the
ECM.
P0725 P0725
AT- 11 2
A/T 1ST GR
FNCTNA/T cannot shift to 1st gear. P0731 P0731
AT- 11 4
A/T 2ND GR
FNCTNA/T cannot shift to 2nd gear. P0732 P0732
AT- 11 6
A/T 3RD GR
FNCTNA/T cannot shift to 3rd gear. P0733 P0733
AT- 11 8
A/T 4TH GR
FNCTNA/T cannot shift to 4th gear. P0734 P0734
AT- 1 2 0
A/T 5TH GR
FNCTNA/T cannot shift to 5th gear. P0735 P0735
AT- 1 2 2
TCC SOLENOID/
CIRCNormal voltage not applied to solenoid due to cut line, short, or the
like.
P0740 P0740
AT- 1 2 4
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TROUBLE DIAGNOSISAT-87
< SERVICE INFORMATION >
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*1: Refer to EC-71, "Malfunction Indicator Lamp (MIL)" (for VQ35DE engine) or EC-649, "Malfunction Indicator Lamp (MIL)" (for VK45DE
engine.) A/T TCC S/V
FNCTN
 A/T cannot perform lock-up even if electrical circuit is good.
 TCM detects as irregular by comparing difference value with slip
rotation. P0744
P0744
(*2)AT- 1 2 6
L/PRESS SOL/
CIRC  Normal voltage not applied to solenoid due to cut line, short, or the
like.
 TCM detects as irregular by comparing target value with monitor value. P0745 P0745
AT- 1 2 8
TP SEN/CIRC A/TTCM does not receive the proper accelerator pedal position signals
(input by CAN communication) from ECM. P1705 P1705
AT- 1 3 0
ATF TEMP SEN/
CIRC During running, the A/T fluid temperature sensor signal voltage is
excessively high or low.
P1710 P0710
AT- 1 3 2
VEH SPD SE/CIR-
MTR Signal (CAN communication) from vehicle speed sensor MTR not
input due to cut line or the like.
 Unexpected signal input during running. P1721 —
AT- 1 3 7
A/T INTERLOCKExcept during shift change, the gear position and ATF pressure
switch states are monitored and comparative judgement made.
P1730 P1730
AT- 1 3 9
A/T 1ST E/BRAK-
INGEach ATF pressure switch and solenoid current is monitored and if
a pattern is detected having engine braking 1st gear other than in the
M1 position, a malfunction is detected.
P1731 —
AT- 1 4 1
I/C SOLENOID/
CIRC Normal voltage not applied to solenoid due to functional malfunc-
tion, cut line, short, or the like.
 TCM detects as irregular by comparing target value with monitor value. P1752 P1752
AT- 1 4 3
FR/B SOLENOID/
CIRC Normal voltage not applied to solenoid due to functional malfunc-
tion, cut line, short, or the like.
 TCM detects as irregular by comparing target value with monitor value. P1757 P1757
AT- 1 4 5
D/C SOLENOID/
CIRC Normal voltage not applied to solenoid due to cut line, short, or the
like.
 TCM detects as irregular by comparing target value with monitor value. P1762 P1762
AT- 1 4 7
HLR/C SOL/CIRC Normal voltage not applied to solenoid due to functional malfunc-
tion, cut line, short, or the like.
 TCM detects as irregular by comparing target value with monitor value. P1767 P1767
AT- 1 4 9
LC/B SOLENOID/
CIRCNormal voltage not applied to solenoid due to functional malfunction,
cut line, short, or the like.
P1772 P1772
AT- 1 5 1
LC/B SOLENOID
FNCT TCM detects an improper voltage drop when it tries to operate the
solenoid valve.
 Condition of ATF pressure switch 2 is different from monitor value, and relation between gear position and actual gear ratio is irregu-
lar. P1774
P1774(*2)AT- 1 5 3
MANU MODE SW/
CIRC When an impossible pattern of switch signals is detected, a malfunc-
tion is detected.
P1815 —
AT- 1 5 5
NO DTC IS DE-
TECTED FUR-
THER TESTING
MAY BE RE-
QUIREDNo NG item has been detected. X X —
Items (CONSULT-
III screen terms) Malfunction is detected when... TCM self-di-
agnosis OBD-II
(DTC)
Reference page
“TRANS-
MISSION”
with CON- SULT-III MIL indica-
tor lamp
(*1),
“ENGINE”
with CON-
SULT-III or GST
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AT-88
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.
DATA MONITOR MODE
Display Items List
X: Standard, —: Not applicable, : Option
Monitored item (Unit)Select Monitor Item
Remarks
ECU IN-
PUT SIG- NALS MAIN SIG-
NALS SELEC-
TION
FROM
MENU
VHCL/S SE-A/T (km/h) X X Revolution sensor
VHCL/S SE-MTR (km/h) X —
ACCELE POSI (0.0/8) X — Accelerator pedal position signal
THROTTLE POSI (0.0/8) X X Degree of opening for accelerator recognized by
the TCM
For fail-safe operation, the specific value used
for control is displayed.
CLSD THL POS (ON/OFF) X — Signal input with CAN communications
W/O THL POS (ON/OFF) X —
BRAKE SW (ON/OFF) X — Stop lamp switch
GEAR — X Gear 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) — X Difference 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 —
ATF TEMP 1 ( °C) — X
ATF TEMP 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 —
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TROUBLE DIAGNOSISAT-89
< SERVICE INFORMATION >
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1 POSITION SW (ON/OFF) X —
SLCT LVR POSI — X Selector 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 —
SFT UP ST SW (ON/OFF) — —
Not mounted but displayed.
SFT DWN ST SW (ON/OFF) — —
ASCD-OD CUT (ON/OFF) — —
ASCD-CRUISE (ON/OFF) — —
ABS SIGNAL (ON/OFF) — —
ACC-OD CUT (ON/OFF) — — ICC (intelligent cruise control)
ACC-SIGNAL (ON/OFF) — —
TCS GR/P KEEP (ON/OFF) — —
TCS SIGNAL 2 (ON/OFF) — —
TCS SIGNAL 1 (ON/OFF) — —
TCC SOLENOID (A) — X
LINE PRES SOL (A) — X
I/C SOLENOID (A) — X
FR/B SOLENOID (A) — X
D/C SOLENOID (A) — X
HLR/C SOL (A) — X
ON OFF SOL (ON/OFF) — — LC/B solenoid
TCC SOL MON (A) — —
L/P SOL MON (A) — —
I/C SL MON (A) — —
FR/B SOL MON (A) — —
D/C SOL MON (A) — —
HLR/C SOL MON (A) — —
ON OFF SOL MON (ON/OFF) — — LC/B solenoid
P POSI IND (ON/OFF) — — Monitored item (Unit)
Select Monitor Item
Remarks
ECU IN-
PUT SIG- NALS MAIN SIG-
NALS SELEC-
TION
FROM
MENU
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AT-90
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
R POSI IND (ON/OFF) — —
N POSI IND (ON/OFF) — —
D POSI IND (ON/OFF) — —
4TH POSI IND (ON/OFF) — —
3RD POSI IND (ON/OFF) — —
2ND POSI IND (ON/OFF) — —
1ST POSI IND (ON/OFF) — —
MANU MODE IND (ON/OFF) — —
POWER M LAMP (ON/OFF) — —
F-SAFE IND/L (ON/OFF) — —
ATF WARN LAMP (ON/OFF) — — Not mounted but displayed
BACK-UP LAMP (ON/OFF) — —
STARTER RELAY (ON/OFF) — —
PNP SW3 MON (ON/OFF) — —
C/V CLB ID1 — —
C/V CLB ID2 — —
C/V CLB ID3 — —
UNIT CLB ID1 — —
UNIT CLB ID2 — —
UNIT CLB ID3 — —
TRGT GR RATIO — —
TRGT PRES TCC (kPa) — —
TRGT PRES L/P (kPa) — —
TRGT PRES I/C (kPa) — —
TRGT PRE FR/B (kPa) — —
TRGT PRES D/C (kPa) — —
TRG PRE HLR/C (kPa) — —
SHIFT PATTERN — —
DRV CST JUDGE — —
START RLY MON — —
NEXT GR POSI — —
SHIFT MODE — —
MANU GR POSI — —
VEHICLE SPEED (km/h) — X Vehicle sp eed recognized by the TCM.
Monitored item (Unit)
Select Monitor Item
Remarks
ECU IN-
PUT SIG- NALS MAIN SIG-
NALS SELEC-
TION
FROM
MENU
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TROUBLE DIAGNOSISAT-91
< SERVICE INFORMATION >
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DTC WORK SUPPORT MODE
Display Items List
Diagnosis Procedure without CONSULT-IIIINFOID:0000000001327164
OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)
Refer to EC-125, "Generic Scan Tool (GST) Function" (for VQ35DE) or EC-704, "Generic Scan Tool (GST)
Function" (for VK45DE).
OBD-II SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Refer to EC-71, "Malfunction Indicator Lamp (MIL)" (for VQ35DE) or EC-649, "Malfunction Indicator Lamp
(MIL)" (for VK45DE).
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Description
When the ignition switch is turned ON, the indicator la mp lights up for 2 seconds. As a method for locating the
suspect circuit, when the self-diagnostics start signal is input, the memory for the malfunction location is output
and the A/T CHECK indicator lamp flashes to display the corresponding DTC.
Diagnostic Procedure
Voltage (V) — — Displays the value measured by the voltage
probe.
Frequency (Hz) — —
The value measured by the pulse probe is dis-
played.
DUTY-HI (high) (%) — —
DUTY-LOW (low) (%) — —
PLS WIDTH-HI (ms) — —
PLS WIDTH-LOW (ms) — — Monitored item (Unit)
Select Monitor Item
Remarks
ECU IN-
PUT SIG- NALS MAIN SIG-
NALS SELEC-
TION
FROM
MENU
DTC work support item Description Check item
1ST GR FUNCTN P0731 Following items for “1st gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
 Input clutch solenoid valve
 Front brake solenoid valve
 Direct clutch solenoid valve
 High and low reverse clutch solenoid valve
 Each clutch
 Hydraulic control circuit
2ND GR FUNCTN P0732
Following items for “2nd gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
3RD GR FUNCTN P0733 Following items for “3rd gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
4TH GR FUNCTN P0734 Following items for “4th gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
5TH GR FUNCTN P0735 Following items for “5th gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
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AT-92
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
1.CHECK A/T CHECK INDICATOR LAMP
1. Start the engine with selector lever in “P” pos ition. Warm engine to normal operating temperature.
2. Turn ignition switch ON and OFF at least twice, then leave it in the OFF position.
3. Wait 10 seconds.
4. Turn ignition switch ON. (Do not start engine.)
Does A/T CHECK indicator lamp come on for about 2 seconds?
YES >> GO TO 2.
NO >> Go to AT-170, "
A/T Check Indicator Lamp Does Not Come On".
2.JUDGEMENT PROCEDURE
1. Turn ignition switch OFF.
2. Keep pressing shift lock release button.
3. Move selector lever from “P” to “D” position.
4. Release accelerator pedal. (Set the closed throttle position signal ON.)
5. Depress brake pedal. (Stop lamp switch signal ON.)
6. Turn ignition switch ON. (Do not start engine.)
7. Wait 3 seconds.
8. Move the selector lever to the manual shift gate side. (Manual mode signal ON.)
9. Release brake pedal. (Stop lamp switch signal OFF.)
10. Move the selector lever to “D” position. (Manual mode signal OFF.)
11. Depress brake pedal. (Stop lamp switch signal ON.)
12. Release brake pedal. (Stop lamp switch signal OFF.)
13. Depress accelerator pedal fully and release it.
>> GO TO 3.
3.CHECK SELF-DIAGNOSIS CODE
Check A/T CHECK indicator lamp. Refer to "Judgement Self-diagnosis Code".
If the system does not go into self-diagnostics. Refer to AT-102
, AT-155, AT-164, AT-165.
>> DIAGNOSIS END
Judgement Self-diagnosis Code
If there is a malfunction, the lamp lights up fo r the time corresponding to the suspect circuit.
No. Malfunctioning item No. Malfunctioning item
1 Revolution sensor AT- 1 0 8
12 A/T interlock AT- 1 3 9
2 Direct clutch solenoid valve AT- 1 4 713 A/T 1st engine braking AT-141
3 Torque converter clutch solenoid valve AT- 1 2 4, AT- 1 2 614 Start signal AT- 9 7
4 Line pressure solenoid valve AT- 1 2 815 Accelerator pedal position sensor AT- 1 3 0
5 Input clutch solenoid valve AT- 1 4 316 Engine speed signal AT- 11 2
6 Front brake solenoid valve AT- 1 4 517 CAN communication line AT- 9 4
7 Low coast brake solenoid valve AT- 1 5 1, AT- 1 5 318 1st gear function AT- 11 4
8 High and low reverse clutch solenoid valve AT- 1 4 919 2nd gear function AT- 11 6
9 PNP switch AT- 1 0 220 3rd gear function AT- 11 8
10 A/T fluid temperature sensor AT-13221 4th gear function AT- 1 2 0
11 Turbine revolution sensor AT- 1 0 622 5th gear function AT- 1 2 2
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TROUBLE DIAGNOSISAT-93
< SERVICE INFORMATION >
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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 igni tion switch “OFF” after performing self-diagnostics or by
erasing the memory using the CONSULT-III.
SCIA8153E
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AT-94
< SERVICE INFORMATION >
DTC U1000 CAN COMMUNICATION LINE
DTC U1000 CAN COMMUNICATION LINE
DescriptionINFOID:0000000001327165
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehi cle, and each control unit shares information and links
with other control units during operation (not independent ). In CAN communication, control units are con-
nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/recei ves data but selectively reads required data only.
On Board Diagnosis LogicINFOID:0000000001327166
Diagnostic trouble code “U1000 CAN COMM CIRCUIT” with CONSULT-III or 17th judgement flicker without
CONSULT-III is detected when TCM cannot communicate to other control units.
Possible CauseINFOID:0000000001327167
Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000001327168
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following proc edure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNAL S” in “DATA MONITOR” mode for “TRANSMISSION”
with CONSULT-III.
3. Start engine and wait for at least 6 seconds.
4. If DTC is detected, go to AT-96, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III”.
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