Nissan Titan. Manual — part 616
SYSTEM SYMPTOM
TM-147
< SYMPTOM DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
14
No Down
Shift
In “D” or "4" range,
does not downshift to
4GR.
ON vehicle
1. Fluid level and state
2. Output speed sensor and vehicle speed signal
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 "3" range,
does not downshift to
3GR.
ON vehicle
1. Fluid level and state
2. Output speed sensor and vehicle speed signal
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 "2" range,
does not downshift to
2GR.
.
ON vehicle
1. Fluid level and state
2. Output speed sensor and vehicle speed signal
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
In “D” or "1" range,
does not downshift to
1GR.
ON vehicle
1. Fluid level and state
2. Output speed sensor and vehicle speed signal
3. Direct clutch solenoid valve
4. CAN communication line
5. Line pressure test
6. Control valve with TCM
OFF vehicle
7. Direct clutch
No.
Items
Symptom
Condition
Diagnostic Item
Reference
page
TM-148
< SYMPTOM DIAGNOSIS >
SYSTEM SYMPTOM
18
Slips/Will
Not en-
gage
When “D” position, re-
mains in 1GR.
ON vehicle
1. Fluid level and state
2. Output speed sensor and vehicle speed signal
,
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” position, re-
mains in 2GR.
ON vehicle
1. Fluid level and state
2. Output speed sensor and vehicle speed signal
,
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.
Items
Symptom
Condition
Diagnostic Item
Reference
page
SYSTEM SYMPTOM
TM-149
< SYMPTOM DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
20
Slips/Will
Not en-
gage
When “D” position, re-
mains in 3GR.
ON vehicle
1. Fluid level and state
2. Output speed sensor and vehicle speed signal
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” position, re-
mains in 4GR.
ON vehicle
1. Fluid level and state
2. Output speed sensor and vehicle speed signal
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
No.
Items
Symptom
Condition
Diagnostic Item
Reference
page
TM-150
< SYMPTOM DIAGNOSIS >
SYSTEM SYMPTOM
22
Slips/Will
Not En-
gage
When “D” position, re-
mains in 5GR.
ON vehicle
1. Fluid level and state
2. Output speed sensor and vehicle speed signal
,
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
23
Vehicle cannot be
started from D
1
.
ON vehicle
1. 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. Fluid level and state
2. Line pressure test
3. Engine speed signal
4. Input speed 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.
Items
Symptom
Condition
Diagnostic Item
Reference
page
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