clutch INFINITI FX35 2008 Workshop Manual

AT-76
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
43Slips/Will
Not En-
gage No creep at all.
Refer to
AT- 1 7 5 , "
Ve-
hicle Does Not Creep
Backward in "R" Posi-
tion", AT- 1 7 8 , "Vehicle
Does Not Creep For-
ward in "D" Position"
ON vehicle 1. A/T fluid level and state
AT- 4 9
2. Line pressure testAT- 4 9
3. Accelerator pedal position sensorAT- 1 3 0
4. Direct clutch solenoid valveAT- 1 4 7
5. PNP switchAT- 1 0 2
6. CAN communication line AT- 9 4
7. A/T positionAT- 2 0 7
8. Control valve with TCMAT- 2 1 5
OFF vehicle9. Torque converter
AT- 2 6 7
10. Oil pump assemblyAT- 2 8 5
11. 1st one-way clutchAT- 2 9 5
12. Gear systemAT- 2 4 9
13. Reverse brakeAT- 2 6 7
14. Direct clutchAT- 3 0 3
15. Forward one-way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to AT-
16, "Cross-Sectional View (2WD Models)", AT- 1 7 , "Cross-
Sectional View (VQ35DE Models for AWD)" or AT- 1 8 , "Cross-
Sectional View (VK45DE Models for AWD)") AT- 2 6 7
16. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
AT- 1 6 , "
Cross-
Sectional View (2WD Models)", AT- 1 7 , "Cross-Sectional View
(VQ35DE Models for AWD)" or AT- 1 8 , "Cross-Sectional View
(VK45DE Models for AWD)") AT- 2 6 7
44
Vehicle cannot run in
all positions. ON vehicle1. A/T fluid level and state
AT- 4 9
2. Line pressure testAT- 4 9
3. PNP switchAT- 1 0 2
4. A/T positionAT- 2 0 7
5. Control valve with TCMAT- 2 1 5
OFF vehicle6. Oil pump assembly
AT- 2 8 57. Gear systemAT- 2 4 9
8. Output shaftAT- 2 6 7
No. Items Symptom Condition Diagnostic Item Reference
page
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TROUBLE DIAGNOSISAT-77
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
45
Slips/Will
Not En-
gage With selector lever in
“D” position, driving is
not possible. ON vehicle
1. A/T fluid level and state
AT- 4 9
2. Line pressure testAT- 4 9
3. PNP switchAT- 1 0 2
4. A/T positionAT- 2 0 7
5. Control valve with TCMAT- 2 1 5
OFF vehicle6. Torque converter
AT- 2 6 7
7. Oil pump assemblyAT- 2 8 5
8. 1st one-way clutchAT- 2 9 5
9. Gear systemAT- 2 4 9
10. Reverse brakeAT- 2 6 7
11. Forward one-way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to AT-
16, "Cross-Sectional View (2WD Models)", AT- 1 7 , "Cross-
Sectional View (VQ35DE Models for AWD)" or AT- 1 8 , "Cross-
Sectional View (VK45DE Models for AWD)") AT- 2 6 7
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
AT- 1 6 , "
Cross-
Sectional View (2WD Models)", AT- 1 7 , "Cross-Sectional View
(VQ35DE Models for AWD)" or AT- 1 8 , "Cross-Sectional View
(VK45DE Models for AWD)") AT- 2 6 7
46
With selector lever in
“R” position, driving is
not possible. ON vehicle
1. A/T fluid level and state
AT- 4 9
2. Line pressure testAT- 4 9
3. PNP switchAT- 1 0 2
4. A/T positionAT- 2 0 7
5. Control valve with TCMAT- 2 1 5
OFF vehicle6. Gear system
AT- 2 4 97. Output shaftAT- 2 6 7
8. Reverse brakeAT- 2 6 7
47Does Not
Change Does not change M5
→
M4.
Refer to AT- 1 9 6 , "A/T
Does Not Shift: 5th
Gear → 4th Gear".ON vehicle 1. PNP switch
AT- 1 0 2
2. A/T fluid level and state AT- 4 9
3. A/T positionAT- 2 0 7
4. Manual mode switchAT- 1 5 5
5. CAN communication line AT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle 7. Front brake (brake band) AT- 2 6 7
No. Items Symptom Condition Diagnostic Item Reference
page
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AT-78
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
48Does Not
Change Does not change M4
→
M3.
Refer to AT- 1 9 7 , "A/T
Does Not Shift: 4th
Gear → 3rd Gear".ON vehicle 1. PNP switch
AT- 1 0 2
2. A/T fluid level and state AT- 4 9
3. A/T positionAT- 2 0 7
4. Manual mode switchAT- 1 5 5
5. CAN communication line AT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Front brake (brake band)
AT- 2 6 78. Input clutchAT- 2 8 9
49Does not change M3
→
M2.
Refer to AT- 1 9 9 , "A/T
Does Not Shift: 3rd
Gear → 2nd Gear".ON vehicle
1. PNP switch
AT- 1 0 2
2. A/T fluid level and state AT- 4 9
3. A/T positionAT- 2 0 7
4. Manual mode switchAT- 1 5 5
5. CAN communication line AT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Front brake (brake band)
AT- 2 6 78. Input clutchAT- 2 8 9
9. High and low reverse clutchAT- 3 0 1
50Does not change M2
→
M1.
Refer to AT- 2 0 1 , "A/T
Does Not Shift: 2nd
Gear → 1st Gear".ON vehicle
1. PNP switch
AT- 1 0 2
2. A/T fluid level and state AT- 4 9
3. A/T positionAT- 2 0 7
4. Manual mode switchAT- 1 5 5
5. CAN communication line AT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Input clutch
AT- 2 8 98. High and low reverse clutchAT- 3 0 1
9. Direct clutchAT- 3 0 3
51Cannot be changed to
manual mode.
Refer to
AT- 1 9 5 , "Can-
not Be Changed to
Manual Mode". ON vehicle 1. Manual mode switch
AT- 1 5 5
2. Turbine revolution sensorAT- 1 0 6
3. CAN communication line AT- 9 4
52 OthersShift point is high in
“D” position.
ON vehicle1. Vehicle speed sensor A/T and vehicle speed sensor MTR
AT- 1 0 8
,
AT- 1 3 7
2. Accelerator pedal position sensor AT- 1 3 0
3. CAN communication line AT- 9 4
4. ATF temperature sensorAT- 1 3 2
5. Control valve with TCMAT- 2 1 5
No. Items Symptom Condition Diagnostic Item Reference
page
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TROUBLE DIAGNOSISAT-79
< SERVICE INFORMATION >
DE
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M A
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AT
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53
Others Shift point is low in “D”
position.
ON vehicle1. Vehicle speed sensor A/T and vehicle speed sensor MTR
AT- 1 0 8
,
AT- 1 3 7
2. Accelerator pedal position sensor AT- 1 3 0
3. CAN communication line AT- 9 4
4. Control valve with TCMAT- 2 1 5
54Judder occurs during
lock-up. ON vehicle1. A/T fluid level and state
AT- 4 9
2. Engine speed signalAT- 11 2
3. Turbine revolution sensorAT- 1 0 6
4. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 8,
AT- 1 3 7
5. Accelerator pedal position sensor AT- 1 3 0
6. CAN communication line AT- 9 4
7. Torque converter clutch solenoid valveAT- 1 2 4
8. Control valve with TCMAT- 2 1 5
OFF vehicle 9. Torque converter AT- 2 6 7
55Strange noise in “R”
position. ON vehicle
1. A/T fluid level and state
AT- 4 9
2. Engine speed signalAT- 11 2
3. CAN communication line AT- 9 4
4. Control valve with TCMAT- 2 1 5
OFF vehicle5. Torque converter
AT- 2 6 7
6. Oil pump assemblyAT- 2 8 5
7. Gear systemAT- 2 4 9
8. High and low reverse clutchAT- 3 0 1
9. Reverse brakeAT- 2 6 7
56Strange noise in “N”
position. ON vehicle
1. A/T fluid level and state
AT- 4 9
2. Engine speed signalAT- 11 2
3. CAN communication line AT- 9 4
4. Control valve with TCMAT- 2 1 5
OFF vehicle5. Torque converter
AT- 2 6 76. Oil pump assemblyAT- 2 8 5
7. Gear systemAT- 2 4 9
No. Items Symptom Condition Diagnostic Item Reference
page
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AT-80
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
57Others Strange noise in “D”
position.
ON vehicle
1. A/T fluid level and state
AT- 4 9
2. Engine speed signalAT- 11 2
3. CAN communication line AT- 9 4
4. Control valve with TCMAT- 2 1 5
OFF vehicle5. Torque converter
AT- 2 6 7
6. Oil pump assemblyAT- 2 8 5
7. Gear systemAT- 2 4 9
8. Forward brake (Parts behind drum support is impossible to
perform inspection by disassembly. Refer to AT- 1 6 , "
Cross-
Sectional View (2WD Models)", AT- 1 7 , "Cross-Sectional View
(VQ35DE Models for AWD)" or AT- 1 8 , "Cross-Sectional View
(VK45DE Models for AWD)") AT- 2 6 7
58Vehicle does not de-
celerate by engine
brake.
Refer to
AT- 2 0 2 , "Ve-
hicle Does Not Decel-
erate by Engine
Brake". ON vehicle
1. PNP switch
AT- 1 0 2
2. A/T fluid level and state AT- 4 9
3. A/T positionAT- 2 0 7
4. Manual mode switchAT- 1 5 5
5. CAN communication line AT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Input clutch
AT- 2 8 98. High and low reverse clutchAT- 3 0 1
9. Direct clutchAT- 3 0 3
59Engine brake does not
work M5
→ M4. ON vehicle 1. PNP switch
AT- 1 0 2
2. A/T fluid level and state AT- 4 9
3. A/T positionAT- 2 0 7
4. Manual mode switchAT- 1 5 5
5. CAN communication line AT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle 7. Front brake (brake band) AT- 2 6 7
60Engine brake does not
work M4
→ M3. ON vehicle 1. PNP switch
AT- 1 0 2
2. A/T fluid level and state AT- 4 9
3. A/T positionAT- 2 0 7
4. Manual mode switchAT- 1 5 5
5. CAN communication line AT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Front brake (brake band)
AT- 2 6 78. Input clutchAT- 2 8 9
No. Items Symptom Condition Diagnostic Item Reference
page
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TROUBLE DIAGNOSISAT-81
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P61
Others Engine brake does not
work M3
→ M2. ON vehicle 1. PNP switch
AT- 1 0 2
2. A/T fluid level and state AT- 4 9
3. A/T positionAT- 2 0 7
4. Manual mode switchAT- 1 5 5
5. CAN communication line AT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Front brake (brake band)
AT- 2 6 78. Input clutchAT- 2 8 9
9. High and low reverse clutchAT- 3 0 1
62Engine brake does not
work M2
→ M1. ON vehicle 1. PNP switch
AT- 1 0 2
2. A/T fluid level and state AT- 4 9
3. A/T positionAT- 2 0 7
4. Manual mode switchAT- 1 5 5
5. CAN communication line AT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Input clutch
AT- 2 8 98. High and low reverse clutchAT- 3 0 1
9. Direct clutchAT- 3 0 3
63 Maximum speed low.ON vehicle
1. A/T fluid level and state
AT- 4 9
2. Line pressure testAT- 4 9
3. Accelerator pedal position sensorAT- 1 3 0
4. CAN communication line AT- 9 4
5. Direct clutch solenoid valveAT- 1 4 7
6. Control valve with TCMAT- 2 1 5
OFF vehicle7. Torque converter
AT- 2 6 7
8. Oil pump assemblyAT- 2 8 5
9. Input clutchAT- 2 8 9
10. Gear systemAT- 2 4 9
11. High and low reverse clutchAT- 3 0 1
12. Direct clutchAT- 3 0 3
13. Forward one-way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to AT-
16, "Cross-Sectional View (2WD Models)", AT- 1 7 , "Cross-
Sectional View (VQ35DE Models for AWD)" or AT- 1 8 , "Cross-
Sectional View (VK45DE Models for AWD)") AT- 2 6 7
14. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
AT- 1 6 , "
Cross-
Sectional View (2WD Models)", AT- 1 7 , "Cross-Sectional View
(VQ35DE Models for AWD)" or AT- 1 8 , "Cross-Sectional View
(VK45DE Models for AWD)") AT- 2 6 7
No. Items Symptom Condition Diagnostic Item
Reference
page
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AT-82
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
64Others Extremely large creep.
ON vehicle1. Engine idle speed EC-84
(for
VQ35DE)
or EC-661

(for
VK45DE)
2. CAN communication line AT- 9 4
OFF vehicle 3. Torque converter AT- 2 6 7
65With selector lever in
“P” position, vehicle
does not enter parking
condition or, with se-
lector lever in another
position, parking con-
dition is not cancelled.
Refer to
AT- 1 7 1 , "
In
"P" Position, Vehicle
Moves When
Pushed". ON vehicle
1. PNP switch
AT- 1 0 2
2. A/T positionAT- 2 0 7
OFF vehicle 3. Parking pawl components AT-
226(2WD
models) or AT- 2 6 7

(AWD
models)
66 Vehicle runs with A/T
in “P” position. ON vehicle
1. PNP switch
AT- 1 0 2
2. A/T fluid level and state AT- 4 9
3. A/T positionAT- 2 0 7
4. Control valve with TCMAT- 2 1 5
OFF vehicle5. Parking pawl components AT-
226(2WD
models) or AT- 2 6 7

(AWD
models)
6. Gear system AT- 2 4 9
67Vehicle runs with A/T
in “N” position.
Refer to
AT- 1 7 2 , "In
"N" Position, Vehicle
Moves". ON vehicle
1. PNP switch
AT- 1 0 2
2. A/T fluid level and state AT- 4 9
3. A/T positionAT- 2 0 7
4. Control valve with TCMAT- 2 1 5
OFF vehicle5. Input clutch
AT- 2 8 9
6. Gear systemAT- 2 4 9
7. Direct clutchAT- 3 0 3
8. Reverse brakeAT- 2 6 7
9. Forward one-way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to AT-
16, "Cross-Sectional View (2WD Models)", AT- 1 7 , "Cross-
Sectional View (VQ35DE Models for AWD)" or AT- 1 8 , "Cross-
Sectional View (VK45DE Models for AWD)") AT- 2 6 7
10. Low coast brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
AT- 1 6 , "
Cross-
Sectional View (2WD Models)", AT- 1 7 , "Cross-Sectional View
(VQ35DE Models for AWD)" or AT- 1 8 , "Cross-Sectional View
(VK45DE Models for AWD)") AT- 2 6 7
No. Items Symptom Condition Diagnostic Item
Reference
page
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TROUBLE DIAGNOSISAT-83
< SERVICE INFORMATION >
DE
F
G H
I
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M A
B
AT
N
O P
TCM Input/Output Signal Reference ValueINFOID:0000000001327162
A/T ASSEMBLY HARNESS CONNECTOR TERMINAL LAYOUT
TCM INSPECTION TABLE
68
Others Engine does not start
in “N” or “P” position.
Refer to
AT- 1 7 0 , "En-
gine Cannot Be Start-
ed in "P" or "N"
Position". ON vehicle
1. Ignition switch and starter
PG-3
,
SC-
8
2. A/T position AT- 2 0 7
3. PNP switchAT- 1 0 2
69Engine starts in posi-
tions other than “N” or
“P”. ON vehicle1. Ignition switch and starter
PG-3
,
SC-
8
2. A/T position AT- 2 0 7
3. PNP switchAT- 1 0 2
70 Engine stall.ON vehicle1. A/T fluid level and state
AT- 4 9
2. Engine speed signalAT- 11 2
3. Turbine revolution sensorAT- 1 0 6
4. Torque converter clutch solenoid valveAT- 1 2 4
5. CAN communication line AT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle 7. Torque converter AT- 2 6 7
71Engine stalls when se-
lector lever shifted “N”
→
“D”, “R”. ON vehicle1. A/T fluid level and state
AT- 4 9
2. Engine speed signalAT- 11 2
3. Turbine revolution sensorAT- 1 0 6
4. Torque converter clutch solenoid valveAT- 1 2 4
5. CAN communication line AT- 9 4
6. Control valve with TCMAT- 2 1 5
OFF vehicle 7. Torque converter AT- 2 6 7
72Engine speed does
not return to idle.
Refer to
AT- 1 9 4 , "En-
gine Speed Does Not
Return to Idle". ON vehicle 1. A/T fluid level and state
AT- 4 9
2. Direct clutch solenoid valveAT- 1 4 7
3. Front brake solenoid valve AT- 1 4 5
4. Accelerator pedal position sensorAT- 1 3 0
5. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 3 7
6. CAN communication line AT- 9 4
7. Control valve with TCMAT- 2 1 5
OFF vehicle8. Front brake (brake band)
AT- 2 6 79. Direct clutchAT- 3 0 3
No. Items Symptom Condition Diagnostic Item Reference
page
SCIA1658E
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TROUBLE DIAGNOSISAT-85
< SERVICE INFORMATION >
DE
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G H
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M A
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AT
N
O P
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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TROUBLE DIAGNOSISAT-91
< SERVICE INFORMATION >
DE
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G H
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AT
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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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