Nissan Pathfinder (2005 year). Instruction — part 11
TROUBLE DIAGNOSIS
AT-59
D
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AT
2005 Pathfinder
2.
CHECK SHIFT-DOWN
During D
4
driving, move gear selector from D
→
3
→
2
→
1.
With CONSULT-II
Read the gear position.
Is downshifting correctly performed?
YES
>> GO TO 3.
NO
>> Enter a check mark at “A/T does not shift” at the corresponding position (4th
→
3rd, 3rd
→
2nd,
2nd
→
1st) on the diagnostics worksheet, then continue the road test.
3.
CHECK ENGINE BRAKE
Does engine braking effectively reduce speed in 1
1
position?
YES
>> 1. Stop the vehicle.
2. Carry out the self-diagnostics. Refer to
AT-87, "SELF-DIAGNOSTIC RESULT MODE"
.
NO
>> Enter a check mark at “Vehicle Does Not Decelerate By Engine Brake” on the diagnostics work-
sheet, then continue trouble diagnosis.
AT-60
TROUBLE DIAGNOSIS
2005 Pathfinder
Vehicle Speed at Which Gear Shifting Occurs
UCS00323
2WD MODELS
●
At half throttle, the accelerator opening is 4/8 of the full opening.
4WD MODELS
●
At half throttle, the accelerator opening is 4/8 of the full opening.
Vehicle Speed at Which Lock-up Occurs/Releases
UCS00324
2WD MODELS
●
At closed throttle, the accelerator opening is less than 1/8 condition. (Closed throttle position signal: OFF)
●
At half throttle, the accelerator opening is 4/8 of the full opening.
4WD MODELS
●
At closed throttle, the accelerator opening is less than 1/8 condition. (Closed throttle position signal: OFF)
●
At half throttle, the accelerator opening is 4/8 of the full opening.
Final
gear
ratio
Throttle position
Vehicle speed km/h (MPH)
D
1
→
D
2
D
2
→
D
3
D
3
→
D
4
D
4
→
D
5
D
5
→
D
4
D
4
→
D
3
D
3
→
D
2
D
2
→
D
1
3.133
Full throttle
60 - 74
(37 - 46)
99 - 119
(62 - 74)
153 - 183
(95 - 114)
234 - 267
(145 - 166)
230 - 264
(143 - 164)
142 - 171
(88 - 106)
87 - 104
(54 - 65)
41 - 48
(25 - 30)
Half throttle
49 - 59
(30 - 37)
80 - 96
(50 - 60)
123 - 149
(76 - 93)
152 - 178
(94 - 111)
115 - 138
(71 - 86)
71 - 86
(44 - 53)
51 - 61
(32 - 38)
12 - 14
(7 - 9)
Full throttle
60 - 68
(37 - 42)
99 - 110
(62 - 68)
153 - 170
(95 - 106)
234 - 259
(145 - 161)
230 - 255
(143 - 158)
142 - 158
(88 - 98)
87 - 97
(54 - 60)
41 - 47
(25 - 30)
Half throttle
49 - 55
(30 - 34)
80 - 90
(50 - 56)
123 - 137
(76 - 85)
152 - 168
(94 - 104)
115 - 128
(71 - 80)
71 - 79
(44 - 49)
51 - 57
(32 - 35)
12 - 14
(7 - 9)
Final
gear
ratio
Throttle position
Vehicle speed km/h (MPH)
D
1
→
D
2
D
2
→
D
3
D
3
→
D
4
D
4
→
D
5
D
5
→
D
4
D
4
→
D
3
D
3
→
D
2
D
2
→
D
1
3.357
Full throttle
58 - 65
(36 - 40)
94 - 104
(60 - 65)
144 - 160
(89 - 90)
221 - 245
(137 - 152)
218 - 241
(135 - 150)
135 - 150
(84 - 93)
82 - 92
(51 - 57)
40 - 45
(25 - 28)
Half throttle
46 - 52
(29 - 32)
76 - 84
(47 - 52)
117 - 130
(73 - 81)
143 - 159
(89 - 99)
109 - 121
(68 - 75)
67 - 75
(42 - 47)
48 - 54
(30 - 34)
12 - 14
(7 - 9)
Full throttle
60 - 68
(37 - 42)
99 - 110
(62 - 68)
153 - 170
(95 - 106)
234 - 259
(145 - 161)
230 - 255
(143 - 158)
142 - 158
(88 - 98)
87 - 97
(54 - 60)
41 - 47
(25 - 29)
Half throttle
49 - 55
(30 - 34)
80 - 90
(50 - 56)
123 - 137
(76 - 85)
152 - 168
(94 - 104)
115 - 128
(71 - 80)
71 - 79
(44 - 49)
51 - 57
(32 - 35)
12 - 14
(7 - 9)
Final
gear
ratio
Throttle position
Vehicle speed km/h (MPH)
Lock-up “ON”
Lock-up “OFF”
3.133
Closed throttle
78 - 93 (48 - 58)
68 - 82 (42 - 51)
Half throttle
188 - 218 (117 - 135)
147 - 175 (91 - 109)
Closed throttle
78 - 87 (48 - 54)
68 - 76 (42 - 47)
Half throttle
188 - 208 (117 - 129)
147 - 163 (91 - 101)
Final
gear
ratio
Throttle position
Vehicle speed km/h (MPH)
Lock-up “ON”
Lock-up “OFF”
3.357
Closed throttle
73 - 81 (45 - 50)
64 - 72 (40 - 45)
Half throttle
179 - 198 (111 - 123)
140 - 155 (87 - 96)
Closed throttle
78 - 87 (48 - 54)
68 - 76 (42 - 47)
Half throttle
188 - 208 (117 - 129)
147 - 163 (91 - 101)
TROUBLE DIAGNOSIS
AT-61
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AT
2005 Pathfinder
Symptom Chart
UCS00326
●
The diagnostics item numbers show the sequence for inspection. Inspect in order from item 1.
●
Overhaul and inspect inside the A/T only if A/T fluid condition is NG. Refer to
.
No.
Items
Symptom
Condition
Diagnostic Item
Reference
page
1
Shift
Shock
Large shock. (“N”
→
“
D” position)
Refer to
"Large Shock (“N” to
“D” Position)"
.
ON vehicle
1. Engine idle speed
2. Engine speed signal
3. Accelerator pedal position sensor
4. Control cable adjustment
5. ATF temperature sensor
6. ATF pressure switch 1 and front brake solenoid valve
7. CAN communication line
8. Fluid level and state
9. Line pressure test
10. Control valve with TCM
OFF vehicle
11. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
.)
2
Shock is too large
when changing D
1
→
D
2
.
ON vehicle
1. Accelerator pedal position sensor
2. Control cable adjustment
3. ATF pressure switch 5 and direct 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. Fluid level and state
9. Control valve with TCM
OFF vehicle
10. Direct clutch
3
Shock is too large
when changing D
2
→
D
3
.
ON vehicle
1. Accelerator pedal position sensor
2. Control cable adjustment
3. ATF pressure switch 6, high and low reverse clutch sole-
noid 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. Fluid level and state
9. Control valve with TCM
OFF vehicle
10. High and low reverse clutch
AT-62
TROUBLE DIAGNOSIS
2005 Pathfinder
4
Shift
Shock
Shock is too large
when changing D
3
→
D
4
.
ON vehicle
1. Accelerator pedal position sensor
2. Control cable adjustment
3. ATF pressure switch 3 and 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. 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
.
ON vehicle
1. Accelerator pedal position sensor
2. Control cable adjustment
3. ATF pressure switch 1 and 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. Fluid level and state
9. Control valve with TCM
OFF vehicle
10. Front brake (brake band)
11. Input clutch
6
Shock is too large for
downshift when accel-
erator pedal is
pressed.
ON vehicle
1. Accelerator pedal position sensor
2. Control cable adjustment
3. CAN communication line
4. Engine speed signal
5. Turbine revolution sensor
6. Vehicle speed sensor A/T and vehicle speed sensor MTR
7. 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
No.
Items
Symptom
Condition
Diagnostic Item
Reference
page
TROUBLE DIAGNOSIS
AT-63
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AT
2005 Pathfinder
7
Shift
Shock
Shock is too large for
upshift when acceler-
ator pedal is released.
ON vehicle
1. Accelerator pedal position sensor
2. Control cable adjustment
3. Engine speed signal
4. CAN communication line
5. Turbine revolution sensor
6. Vehicle speed sensor A/T and vehicle speed sensor MTR
,
7. 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. Control cable adjustment
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. Fluid level and state
9. Control valve with TCM
OFF vehicle
10. Torque converter
9
Shock is too large
during engine brake.
ON vehicle
1. Accelerator pedal position sensor
2. Control cable adjustment
3. CAN communication line
4. 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
No.
Items
Symptom
Condition
Diagnostic Item
Reference
page
AT-64
TROUBLE DIAGNOSIS
2005 Pathfinder
10
No Up
Shift
Gear does not change
from D
1
→
D
2
.
Refer to
.
ON vehicle
1. Fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
3. ATF pressure switch 5 and 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
.
Refer to
.
ON vehicle
1. Fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
3. ATF pressure switch 6, high and low reverse clutch sole-
noid 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
.
Refer to
.
ON vehicle
1. Fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
3. ATF pressure switch 3 and input clutch solenoid valve
,
4. ATF pressure switch 1 and front brake solenoid valve
,
5. Line pressure test
6. CAN communication line
7. Control valve with TCM
OFF vehicle
8. Input clutch
13
Gear does not change
from D
4
→
D
5
.
Refer to
.
ON vehicle
1. Fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
3. ATF pressure switch 1 and front brake solenoid valve
,
4. ATF pressure switch 5 and 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.
Items
Symptom
Condition
Diagnostic Item
Reference
page
TROUBLE DIAGNOSIS
AT-65
D
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A
B
AT
2005 Pathfinder
14
No Down
Shift
In “D” range, does not
downshift to 4th gear.
Refer to
.
ON vehicle
1. Fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
,
3. ATF pressure switch 1 and front brake solenoid valve
4. ATF pressure switch 5 and 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
3rd gear.
Refer to
.
ON vehicle
1. Fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
,
3. ATF pressure switch 3 and input clutch solenoid valve
4. ATF pressure switch 1 and 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
2nd gear.
Refer to
.
ON vehicle
1. Fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
,
3. ATF pressure switch 6, high and low reverse clutch sole-
noid 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
1st gear.
Refer to
.
ON vehicle
1. Fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
,
3. ATF pressure switch 5 and 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
AT-66
TROUBLE DIAGNOSIS
2005 Pathfinder
18
Slips/Will
Not
engage
When “D” position,
remains in 1st gear.
ON vehicle
1. 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
impossible 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,
remains in 2nd gear.
ON vehicle
1. 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.
Items
Symptom
Condition
Diagnostic Item
Reference
page
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