Infiniti G37 Coupe. Manual — part 1334
SYSTEM SYMPTOM
TM-189
< SYMPTOM DIAGNOSIS >
[5AT: RE5R05A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
3
Shift
Shock
Shock is too large
when changing D
2
→
D
3
or M2
→
M3.
ON vehicle
1. Accelerator pedal position sensor
2. A/T position
3. High and low reverse clutch solenoid valve
4. CAN communication line
5. Engine speed signal
6. Turbine revolution sensor
7. Vehicle speed sensor A/T and vehicle speed sensor MTR
,
8. A/T fluid level and state
9. Control valve with TCM
OFF vehicle
10. High and low reverse clutch
4
Shock is too large
when changing D
3
→
D
4
or M3
→
M4.
ON vehicle
1. Accelerator pedal position sensor
2. A/T position
3. Input clutch solenoid valve
4. CAN communication line
5. Engine speed signal
6. Turbine revolution sensor
7. Vehicle speed sensor A/T and vehicle speed sensor MTR
,
8. A/T fluid level and state
9. Control valve with TCM
OFF vehicle
10. Input clutch
5
Shock is too large
when changing D
4
→
D
5
orM4
→
M5.
ON vehicle
1. Accelerator pedal position sensor
2. A/T position
3. Front brake solenoid valve
4. CAN communication line
5. Engine speed signal
6. Turbine revolution sensor
7. Vehicle speed sensor A/T and vehicle speed sensor MTR
,
8. A/T fluid level and state
9. Control valve with TCM
OFF vehicle
10. Front brake (brake band)
11. Input clutch
No.
Item
Symptom
Condition
Diagnostic item
Reference
page
TM-190
< SYMPTOM DIAGNOSIS >
[5AT: RE5R05A]
SYSTEM SYMPTOM
6
Shift
Shock
Shock is too large for
downshift when accel-
erator pedal is de-
pressed.
ON vehicle
1. Accelerator pedal position sensor
2. A/T position
3. CAN communication line
4. Engine speed signal
5. Turbine revolution sensor
6. Vehicle speed sensor A/T and vehicle speed sensor MTR
7. A/T fluid level and state
8. Control valve with TCM
OFF vehicle
9. Front brake (brake band)
10. Input clutch
11. High and low reverse clutch
12. Direct clutch
7
Shock is too large for
upshift when accelera-
tor pedal is released.
ON vehicle
1. Accelerator pedal position sensor
2. A/T position
3. Engine speed signal
4. CAN communication line
5. Turbine revolution sensor
6. Vehicle speed sensor A/T and vehicle speed sensor MTR
7. A/T fluid level and state
8. Control valve with TCM
OFF vehicle
9. Front brake (brake band)
10. Input clutch
11. High and low reverse clutch
12. Direct clutch
8
Shock is too large for
lock-up.
ON vehicle
1. Accelerator pedal position sensor
2. A/T position
3. Engine speed signal
4. CAN communication line
5. Turbine revolution sensor
6. Vehicle speed sensor A/T and vehicle speed sensor MTR
7. Torque converter clutch solenoid valve
8. A/T fluid level and state
9. Control valve with TCM
OFF vehicle
10. Torque converter
No.
Item
Symptom
Condition
Diagnostic item
Reference
page
SYSTEM SYMPTOM
TM-191
< SYMPTOM DIAGNOSIS >
[5AT: RE5R05A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
9
Shift
Shock
Shock is too large dur-
ing engine brake.
ON vehicle
1. Accelerator pedal position sensor
2. A/T position
3. CAN communication line
4. A/T fluid level and state
5. Control valve with TCM
OFF vehicle
6. Front brake (brake band)
7. Input clutch
8. High and low reverse clutch
9. Direct clutch
10
No Up
Shift
Gear does not change
from D
1
→
D
2
or from
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. Line pressure test
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. Direct clutch
11
Gear does not change
from D
2
→
D
3
or from
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. Line pressure test
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. High and low reverse clutch
12
Gear does not change
from D
3
→
D
4
or from
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. Line pressure test
6. CAN communication line
7. Control valve with TCM
OFF vehicle
8. Input clutch
13
No Up
Shift
Gear does not change
from D
4
→
D
5
or from
M4
→
M5.
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. Direct clutch solenoid valve
5. Turbine revolution sensor
6. Line pressure test
7. CAN communication line
8. Control valve with TCM
OFF vehicle
9. Front brake (brake band)
10. Input clutch
No.
Item
Symptom
Condition
Diagnostic item
Reference
page
TM-192
< SYMPTOM DIAGNOSIS >
[5AT: RE5R05A]
SYSTEM SYMPTOM
14
No Down
Shift
In “D” or “M” position,
does not downshift to
4th 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. Direct clutch solenoid valve
5. CAN communication line
6. Line pressure test
7. Control valve with TCM
OFF vehicle
8. Front brake (brake band)
9. Input clutch
15
In “D” or “M” position,
does not downshift to
3rd 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. Front brake solenoid valve
5. CAN communication line
6. Line pressure test
7. Control valve with TCM
OFF vehicle
8. Input clutch
16
In “D” or “M” position,
does not downshift to
2nd gear.
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. High and low reverse clutch
17
No Down
Shift
In “D” or “M” position,
does not downshift to
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. CAN communication line
5. Line pressure test
6. Control valve with TCM
OFF vehicle
7. Direct clutch
No.
Item
Symptom
Condition
Diagnostic item
Reference
page
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