2006 INFINITI M35 lock

TROUBLE DIAGNOSIS
AT-67
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 January2006 M35/M45
8
Shift
ShockShock is too large for
lock-up.ON vehicle1. Accelerator pedal position sensorAT-132
2. Control linkage adjustmentAT-227
3. Engine speed signalAT-124
4. CAN communication lineAT-105
5. Turbine revolution sensorAT- 11 7
6. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT-140
7. Torque converter clutch solenoid valveAT-126
8. A/T fluid level and stateAT- 5 3
9. Control valve with TCMAT-236
OFF vehicle 10. Torque converterAT-298
9Shock is too large
during engine brake.ON vehicle1. Accelerator pedal position sensorAT-132
2. Control linkage adjustmentAT-227
3. CAN communication lineAT-105
4. A/T fluid level and stateAT- 5 3
5. Control valve with TCMAT-236
OFF vehicle6. Front brake (brake band)AT-2987. Input clutch AT-323
8. High and low reverse clutchAT-335
9. Direct clutch AT-337
10
No Up
ShiftGear does not change
from D
1 D2 o r f ro m
M
1 M2 .
Refer to AT-201, "
A/T
Does Not Shift: D1
D2" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT-140
3. ATF pressure switch 5 and direct clutch solenoid valveAT-176,
AT-155
4. Line pressure testAT- 5 5
5. CAN communication lineAT-105
6. Control valve with TCMAT-236
OFF vehicle 7. Direct clutchAT-337
11Gear does not change
from D
2 D3 o r f ro m
M
2 M3 .
Refer to AT-203, "
A/T
Does Not Shift: D2
D3" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT-140
3. ATF pressure switch 6, high and low reverse clutch sole-
noid valveAT-178,
AT-159
4. Line pressure testAT- 5 5
5. CAN communication lineAT-105
6. Control valve with TCMAT-236
OFF vehicle 7. High and low reverse clutchAT-335
No. Item Symptom Condition Diagnostic ItemReference
page

AT-72
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
22
Slips/Will
Not
EngageWhen “D” or “M” posi-
tion, remains in 5th
gear.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT- 1 4 0

3. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 2
,
AT- 1 5 1
4. Line pressure testAT- 5 5
5. CAN communication lineAT- 1 0 5
6. Control valve with TCMAT- 2 3 6
OFF vehicle7. Front brake (brake band)AT- 2 9 88. Input clutchAT- 3 2 3
9. Gear systemAT- 2 7 8
10. High and low reverse clutchAT- 3 3 5
23Vehicle cannot be
started from D
1 .
Refer to AT-199,
"Vehicle Cannot Be
Started from D1" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Accelerator pedal position sensorAT- 1 3 2
3. Line pressure testAT- 5 5
4. CAN communication lineAT- 1 0 5
5. Control valve with TCMAT- 2 3 6
OFF vehicle6. Torque converterAT- 2 9 8
7. Oil pump assemblyAT- 3 1 8
8. 3rd one-way clutchAT- 3 2 1
9. 1st one-way clutch AT- 3 2 9
10. Gear systemAT- 2 7 8
11. Reverse brakeAT- 2 9 8
12. 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)" o r
AT-19, "
Cross-Sectional View (AWD Models)" .)AT- 2 9 8
13. 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- 2 9 8
24Does not lock-up.
Refer to AT-209, "A/T
Does Not Lock-Up" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Line pressure testAT- 5 5
3. Engine speed signalAT- 1 2 4
4. Turbine revolution sensorAT- 11 7
5. Torque converter clutch solenoid valveAT- 1 2 6
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 3 6
OFF vehicle8. Torque converterAT- 2 9 89. Oil pump assemblyAT- 3 1 8
No. Item Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-73
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 January2006 M35/M4525
Slips/Will
Not
EngageDoes not hold lock-up
condition.
Refer to AT-210, "A/T
Does Not Hold Lock-
Up Condition" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Line pressure testAT- 5 5
3. Engine speed signalAT-124
4. Turbine revolution sensorAT- 11 7
5. Torque converter clutch solenoid valveAT-126
6. CAN communication lineAT-105
7. Control valve with TCMAT-236
OFF vehicle8. Torque converterAT-2989. Oil pump assemblyAT-318
26Lock-up is not
released.
Refer to AT-212,
"Lock-Up Is Not
Released" .ON vehicle1. A/T fluid level and stateAT- 5 3
2. Line pressure testAT- 5 5
3. Engine speed signalAT-124
4. Turbine revolution sensorAT- 11 7
5. Torque converter clutch solenoid valveAT-126
6. CAN communication lineAT-105
7. Control valve with TCMAT-236
OFF vehicle8. Torque converterAT-2989. Oil pump assemblyAT-318
27No shock at all or the
clutch slips when
vehicle changes
speed D
1 D2 or
M
1 M2 . ON vehicle1. A/T fluid level and stateAT- 5 3
2. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT-140
3. ATF pressure switch 5 and direct clutch solenoid valveAT-176,
AT-155
4. CAN communication lineAT-105
5. Line pressure testAT- 5 5
6. Control valve with TCMAT-236
OFF vehicle7. Torque converterAT-298
8. Oil pump assemblyAT-318
9. 3rd one-way clutchAT-321
10. Gear systemAT-278
11. Direct clutchAT-337
12. 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-298
No. Item Symptom Condition Diagnostic ItemReference
page

AT-80
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
40
Slips/Will
Not
EngageWhile accelerating in
4th, engine races or
slippage occurs.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. ATF pressure switch 3 and input clutch solenoid valveAT- 1 7 4,
AT- 1 4 7
6. Control valve with TCMAT- 2 3 6
OFF vehicle7. Torque converterAT- 2 9 8
8. Oil pump assemblyAT- 3 1 8
9. Input clutchAT- 3 2 3
10. Gear systemAT- 2 7 8
11. High and low reverse clutchAT- 3 3 5
12. Direct clutchAT- 3 3 7
41While accelerating in
5th, engine races or
slippage occurs.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. ATF pressure switch 1 and front brake solenoid valveAT- 1 7 2,
AT- 1 5 1
6. Control valve with TCMAT- 2 3 6
OFF vehicle7. Torque converterAT- 2 9 8
8. Oil pump assembly AT- 3 1 8
9. Front brake (brake band)AT- 2 9 8
10. Input clutchAT- 3 2 3
11. Gear systemAT- 2 7 8
12. High and low reverse clutchAT- 3 3 5
42 Slips at lock-up.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Line pressure testAT- 5 5
3. Engine speed signalAT- 1 2 4
4. Turbine revolution sensorAT- 11 7
5. Torque converter clutch solenoid valveAT- 1 2 6
6. CAN communication lineAT- 1 0 5
7. Control valve with TCMAT- 2 3 6
OFF vehicle8. Torque converterAT- 2 9 89. Oil pump assemblyAT- 3 1 8
No. Item Symptom Condition Diagnostic ItemReference
page

AT-84
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
53
OthersShift point is low in “D”
position.ON vehicle1. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9
,
AT- 1 4 0
2. Accelerator pedal position sensorAT- 1 3 2
3. CAN communication lineAT- 1 0 5
4. Control valve with TCMAT- 2 3 6
54Judder occurs during
lock-up.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Engine speed signalAT- 1 2 4
3. Turbine revolution sensorAT- 11 7
4. Vehicle speed sensorꞏA/T and vehicle speed sensorꞏMTRAT- 11 9,
AT- 1 4 0
5. Accelerator pedal position sensorAT- 1 3 2
6. CAN communication lineAT- 1 0 5
7. Torque converter clutch solenoid valveAT- 1 2 6
8. Control valve with TCMAT- 2 3 6
OFF vehicle 9. Torque converterAT- 2 9 8
55Strange noise in “R”
position.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Engine speed signalAT- 1 2 4
3. CAN communication lineAT- 1 0 5
4. Control valve with TCMAT- 2 3 6
OFF vehicle5. Torque converterAT- 2 9 8
6. Oil pump assemblyAT- 3 1 8
7. Gear systemAT- 2 7 8
8. High and low reverse clutchAT- 3 3 5
9. Reverse brakeAT- 2 9 8
56Strange noise in “N”
position.ON vehicle1. A/T fluid level and stateAT- 5 3
2. Engine speed signalAT- 1 2 4
3. CAN communication lineAT- 1 0 5
4. Control valve with TCMAT- 2 3 6
OFF vehicle5. Torque converterAT- 2 9 86. Oil pump assemblyAT- 3 1 8
7. Gear systemAT- 2 7 8
No. Item Symptom Condition Diagnostic ItemReference
page

AT-90
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
CONSULT-II Function (A/T)NCS001KH
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
FUNCTION
CONSULT-II REFERENCE VALUE
NOTICE:
1. The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each sole-
noid).
Check for time difference between actual shift timing and the CONSULT-II display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:
–Actual shift schedule has more or less tolerance or allowance,
–Shift schedule indicated in Service Manual refers to the point where shifts start, and
–Gear position displayed on CONSULT-II indicates the point where shifts are completed.
3. Display of solenoid valves on CONSULT-II changes at the start of shifting, while gear position is displayed
upon completion of shifting (which is computed by TCM).
Diagnostic test mode Function Reference page
Self-diagnostic results Self-diagnostic results can be read and erased quickly.AT- 9 2
Data monitor Input/Output data in the ECU can be read.AT- 9 6
CAN diagnostic support
monitorThe results of transmit/receive diagnosis of CAN communication can be read.AT- 1 0 0
Function testPerformed by CONSULT-II instead of a technician to determine whether each system
is “OK” or “NG”.—
DTC work support Select the operating condition to confirm Diagnostic Trouble Codes.AT- 1 0 0
ECU part number ECU part number can be read. —
Item name Condition Display value
(Approx.)
VHCL/S SEꞏA/T
During drivingApproximately
matches the speed
meter reading. VHCL/S SEꞏMTR
ACCELE POSIReleased accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8.0/8
CLSD THL POSReleased accelerator pedal. ON
Fully depressed accelerator pedal. OFF
W/O THL POSFully depressed accelerator pedal. ON
Released accelerator pedal. OFF
BRAKE SWDepressed brake pedal. ON
Released brake pedal. OFF
ENGINE SPEED Engine runningClosely matches the
tachometer reading.
TURBINE REV During driving (lock-up ON)Approximately
matches the engine
speed.
ATF TEMP SE 1
0
C (32 F) - 20C (68F) - 80C (176F)3.3 - 2.7 - 0.9V
ATF TEMP SE 23.3 - 2.5 - 0.7V
TCC SOLENOID Lock-up is active 0.4 - 0.6A
LINE PRES SOL During driving 0.2 - 0.6A

AT-92
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
CONSULT-II SETTING PROCEDURE
Refer to GI-39, "CONSULT-II Start Procedure" .
SELF-DIAGNOSTIC RESULT MODE
After performing self-diagnosis, place check marks for results on the AT- 4 8 , "DIAGNOSTIC WORKSHEET" .
Reference pages are provided following the items.
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”
screen.
Display shows malfunction experienced since the last erasing
operation.
Display Items List
X: Applicable, —: Not applicable
BCIA0031E
Items (CONSULT-
II screen terms)Malfunction is detected when...TCM self-
diagnosisOBD-II (DTC)
Reference
page
“A/T” with
CONSULT-IIMIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
CAN COMM CIR-
CUIT
When a malfunction is detected in CAN communications. U1000 U1000AT-105
STARTER RELAY/
CIRC
If 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 malfunction.)P0615 —AT-108
TCMTCM is malfunctioning P0700 P0700AT- 11 2
PNP SW/CIRC
PNP switch 1-4 signals input with impossible pattern.
“P” position is detected from “N” position without any other
position being detected in between.P0705 P0705AT- 11 3
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 P0717AT- 11 7
VEH SPD SEN/
CIR AT
Signal from vehicle speed sensor A/T (revolution sensor)
not input 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 P0720AT- 11 9
ENGINE SPEED
SIGTCM does not receive the CAN communication signal from
the ECM.P0725 P0725*3AT-124
TCC SOLENOID/
CIRCNormal voltage not applied to solenoid due to cut line,
short, or the like.P0740 P0740AT-126
A/T TCC S/V
FNCTNA/T cannot perform lock-up even if electrical circuit is good.
TCM detects as irregular by comparing difference value
with slip rotation.P0744 P0744*2AT-128

TROUBLE DIAGNOSIS
AT-93
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: 2006 January2006 M35/M45L/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 P0745AT- 1 3 0
TP SEN/CIRC A/TTCM does not receive the proper accelerator pedal position
signals (input by CAN communication) from ECM.P1705 P1705*3AT- 1 3 2
ATF TEMP SEN/
CIRC During running, the A/T fluid temperature sensor signal
voltage is excessively high or low.P1710 P0710AT- 1 3 5
VEH SPD SE/
CIRꞏMTRSignal (CAN communication) from vehicle speed sensor
MTR not input due to cut line or the like.
Unexpected signal input during running.P1721 —AT- 1 4 0
A/T INTERLOCK
Except during shift change, the gear position and ATF pres-
sure switch states are monitored and comparative judge-
ment made.P1730 P1730AT- 1 4 2
A/T 1ST E/BRAK-
ING
Each ATF pressure switch and solenoid current is moni-
tored 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 5
I/C SOLENOID/
CIRC
Normal voltage not applied to solenoid due to functional
malfunction, cut line, short, or the like.
TCM detects as irregular by comparing target value with
monitor value.P1752 P1752AT- 1 4 7
I/C SOLENOID
FNCTN
TCM detects that actual gear ratio is irregular, and relation
between gear position and condition of ATF pressure
switch 3 is irregular during depressing accelerator pedal.
(Other than during shift change.)
TCM detects that relation between gear position and condi-
tion of ATF pressure switch 3 is irregular during releasing
accelerator pedal. (Other than during shift change.)P1754 P1754*2AT- 1 4 9
FR/B SOLENOID/
CIRC
Normal voltage not applied to solenoid due to functional
malfunction, cut line, short, or the like.
TCM detects as irregular by comparing target value with
monitor value.P1757 P1757AT- 1 5 1
FR/B SOLENOID
FNCT
TCM detects that actual gear ratio is irregular, and relation
between gear position and condition of ATF pressure
switch 1 is irregular during depressing accelerator pedal.
(Other than during shift change.)
TCM detects that relation between gear position and condi-
tion of ATF pressure switch 1 is irregular during releasing
accelerator pedal. (Other than during shift change.)P1759 P1759*2AT- 1 5 3
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 P1762AT- 1 5 5
Items (CONSULT-
II screen terms)Malfunction is detected when...TCM self-
diagnosisOBD-II (DTC)
Reference
page
“A/T” with
CONSULT-IIMIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST