Infiniti G37 Coupe. Manual — part 1338
SYSTEM SYMPTOM
TM-205
< SYMPTOM DIAGNOSIS >
[5AT: RE5R05A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
52
Others
Shift point is high in
“D” position.
ON vehicle
1. Vehicle speed sensor A/T and vehicle speed sensor MTR
,
2. Accelerator pedal position sensor
3. CAN communication line
4. A/T fluid temperature sensor
5. Control valve with TCM
53
Shift point is low in “D”
position.
ON vehicle
1. Vehicle speed sensor A/T and vehicle speed sensor MTR
,
2. Accelerator pedal position sensor
3. CAN communication line
4. Control valve with TCM
54
Judder occurs during
lock-up.
ON vehicle
1. A/T fluid level and state
2. Engine speed signal
3. Turbine revolution sensor
4. Vehicle speed sensor A/T and vehicle speed sensor MTR
,
5. Accelerator pedal position sensor
6. CAN communication line
7. Torque converter clutch solenoid valve
8. Control valve with TCM
OFF vehicle
9. Torque converter
55
Strange noise in “R”
position.
ON vehicle
1. A/T fluid level and state
2. Engine speed signal
3. CAN communication line
4. Control valve with TCM
OFF vehicle
5. Torque converter
6. Oil pump assembly
7. Gear system
8. High and low reverse clutch
9. Reverse brake
56
Strange noise in “N”
position.
ON vehicle
1. A/T fluid level and state
2. Engine speed signal
3. CAN communication line
4. Control valve with TCM
OFF vehicle
5. Torque converter
6. Oil pump assembly
7. Gear system
No.
Item
Symptom
Condition
Diagnostic item
Reference
page
TM-206
< SYMPTOM DIAGNOSIS >
[5AT: RE5R05A]
SYSTEM SYMPTOM
57
Others
Strange noise in “D”
position.
ON vehicle
1. A/T fluid level and state
2. Engine speed signal
3. CAN communication line
4. Control valve with TCM
OFF vehicle
5. Torque converter
6. Oil pump assembly
7. Gear system
8. Forward brake (Parts behind drum support is impossible to
perform inspection by disassembly. Refer to
58
Vehicle does not de-
celerate by engine
brake.
ON vehicle
1. PNP switch
2. A/T fluid level and state
3. A/T position
4. Manual mode switch
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. Input clutch
8. High and low reverse clutch
9. Direct clutch
59
Engine brake does not
work M5
→
M4.
ON vehicle
1. PNP switch
2. A/T fluid level and state
3. A/T position
4. Manual mode switch
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. Front brake (brake band)
60
Engine brake does not
work M4
→
M3.
ON vehicle
1. PNP switch
2. A/T fluid level and state
3. A/T position
4. Manual mode switch
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. Front brake (brake band)
8. Input clutch
No.
Item
Symptom
Condition
Diagnostic item
Reference
page
SYSTEM SYMPTOM
TM-207
< SYMPTOM DIAGNOSIS >
[5AT: RE5R05A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
61
Others
Engine brake does not
work M3
→
M2.
ON vehicle
1. PNP switch
2. A/T fluid level and state
3. A/T position
4. Manual mode switch
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. Front brake (brake band)
8. Input clutch
9. High and low reverse clutch
62
Engine brake does not
work M2
→
M1.
ON vehicle
1. PNP switch
2. A/T fluid level and state
3. A/T position
4. Manual mode switch
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. Input clutch
8. High and low reverse clutch
9. Direct clutch
63
Maximum speed low.
ON vehicle
1. A/T fluid level and state
2. Line pressure test
3. Accelerator pedal position sensor
4. CAN communication line
5. Direct clutch solenoid valve
6. Control valve with TCM
OFF vehicle
7. Torque converter
8. Oil pump assembly
9. Input clutch
10. Gear system
11. High and low reverse clutch
12. Direct clutch
13. Forward one-way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to
.)
14. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
64
Extremely large creep.
ON vehicle
1. Engine idle speed
2. CAN communication line
OFF vehicle
3. Torque converter
No.
Item
Symptom
Condition
Diagnostic item
Reference
page
TM-208
< SYMPTOM DIAGNOSIS >
[5AT: RE5R05A]
SYSTEM SYMPTOM
65
Others
With 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.
ON vehicle
1. PNP switch
2. A/T position
OFF vehicle
3. Parking components
66
Vehicle runs with A/T
in “P” position.
ON vehicle
1. PNP switch
2. A/T fluid level and state
3. A/T position
4. Control valve with TCM
OFF vehicle
5. Parking components
6. Gear system
67
Vehicle runs with A/T
in “N” position.
ON vehicle
1. PNP switch
2. A/T fluid level and state
3. A/T position
4. Control valve with TCM
OFF vehicle
5. Input clutch
6. Gear system
7. Direct clutch
8. Reverse brake
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
68
Engine does not start
in “N” or “P” position.
ON vehicle
1. Push-button ignition switch and starter
,
2. A/T position
3. PNP switch
69
Engine starts in posi-
tions other than “N” or
“P”.
ON vehicle
1. Push-button ignition switch and starter
,
2. A/T position
3. PNP switch
70
Engine stall.
ON vehicle
1. A/T fluid level and state
2. Engine speed signal
3. Turbine revolution sensor
4. Torque converter clutch solenoid valve
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. Torque converter
No.
Item
Symptom
Condition
Diagnostic item
Reference
page
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