Infiniti G37 Coupe. Manual — part 1335
SYSTEM SYMPTOM
TM-193
< SYMPTOM DIAGNOSIS >
[5AT: RE5R05A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
18
Slips/Will
Not En-
gage
When “D” or “M” posi-
tion, remains in 1st
gear.
ON vehicle
1. A/T fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
,
3. Direct clutch solenoid valve
4. Line pressure test
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. 3rd one-way clutch
8. 1st one-way clutch
9. Gear system
10. Reverse brake
11. Forward one-way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to
.)
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
19
When “D” or “M” posi-
tion, remains in 2nd
gear.
ON vehicle
1. A/T fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
,
3. Low coast brake solenoid valve
4. Line pressure test
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. 3rd one-way clutch
8. Gear system
9. Direct clutch
10. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
No.
Item
Symptom
Condition
Diagnostic item
Reference
page
TM-194
< SYMPTOM DIAGNOSIS >
[5AT: RE5R05A]
SYSTEM SYMPTOM
20
Slips/Will
Not En-
gage
When “D” or “M” posi-
tion, remains in 3rd
gear.
ON vehicle
1. A/T fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
3. Line pressure test
4. CAN communication line
5. Control valve with TCM
OFF vehicle
6. 3rd one-way clutch
7. Gear system
8. High and low reverse clutch
9. Forward one-way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to
10. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
21
When “D” or “M” posi-
tion, remains in 4th
gear.
ON vehicle
1. A/T fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
3. Input clutch solenoid valve
4. Direct clutch solenoid valve
5. High and low reverse clutch solenoid valve
6. Low coast brake solenoid valve
7. Front brake solenoid valve
8. Line pressure test
9. CAN communication line
10. Control valve with TCM
OFF vehicle
11. Input clutch
12. Gear system
13. High and low reverse clutch
14. Direct clutch
22
When “D” or “M” posi-
tion, remains in 5th
gear.
ON vehicle
1. A/T fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
3. Front brake solenoid valve
4. Line pressure test
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. Front brake (brake band)
8. Input clutch
9. Gear system
10. High and low reverse clutch
No.
Item
Symptom
Condition
Diagnostic item
Reference
page
SYSTEM SYMPTOM
TM-195
< SYMPTOM DIAGNOSIS >
[5AT: RE5R05A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
23
Slips/Will
Not En-
gage
Vehicle cannot take off
from D
1
.
ON vehicle
1. A/T fluid level and state
2. Accelerator pedal position sensor
3. Line pressure test
4. CAN communication line
5. Control valve with TCM
OFF vehicle
6. Torque converter
7. Oil pump assembly
8. 3rd one-way clutch
9. 1st one-way clutch
10. Gear system
11. Reverse brake
12. Forward one-way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to
.)
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
24
Does not lock-up.
ON vehicle
1. A/T fluid level and state
2. Line pressure test
3. Engine speed signal
4. Turbine revolution sensor
5. Torque converter clutch solenoid valve
6. CAN communication line
7. Control valve with TCM
OFF vehicle
8. Torque converter
9. Oil pump assembly
25
Does not hold lock-up
condition.
ON vehicle
1. A/T fluid level and state
2. Line pressure test
3. Engine speed signal
4. Turbine revolution sensor
5. Torque converter clutch solenoid valve
6. CAN communication line
7. Control valve with TCM
OFF vehicle
8. Torque converter
9. Oil pump assembly
26
Lock-up is not re-
leased.
ON vehicle
1. A/T fluid level and state
2. Line pressure test
3. Engine speed signal
4. Turbine revolution sensor
5. Torque converter clutch solenoid valve
6. CAN communication line
7. Control valve with TCM
OFF vehicle
8. Torque converter
9. Oil pump assembly
No.
Item
Symptom
Condition
Diagnostic item
Reference
page
TM-196
< SYMPTOM DIAGNOSIS >
[5AT: RE5R05A]
SYSTEM SYMPTOM
27
Slips/Will
Not En-
gage
No shock at all or the
clutch slips when vehi-
cle changes speed D
1
→
D
2
or M1
→
M2.
ON vehicle
1. A/T fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
3. Direct clutch solenoid valve
4. CAN communication line
5. Line pressure test
6. Control valve with TCM
OFF vehicle
7. Torque converter
8. Oil pump assembly
9. 3rd one-way clutch
10. Gear system
11. Direct clutch
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
28
No shock at all or the
clutch slips when vehi-
cle changes speed D
2
→
D
3
or M2
→
M3.
ON vehicle
1. A/T fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
3. High and low reverse clutch solenoid valve
4. CAN communication line
5. Line pressure test
6. Control valve with TCM
OFF vehicle
7. Torque converter
8. Oil pump assembly
9. 3rd one-way clutch
10. Gear system
11. High and low reverse clutch
12. Forward one-way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
29
No shock at all or the
clutch slips when vehi-
cle changes speed D
3
→
D
4
or M3
→
M4.
ON vehicle
1. A/T fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
3. Input clutch solenoid valve
4. Front brake solenoid valve
5. CAN communication line
6. Line pressure test
7. Control valve with TCM
OFF vehicle
8. Torque converter
9. Oil pump assembly
10. Input clutch
11. Gear system
12. High and low reverse clutch
13. Direct clutch
No.
Item
Symptom
Condition
Diagnostic item
Reference
page
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