2005 NISSAN NAVARA engine

AT-48
TROUBLE DIAGNOSIS
6.CHECK “R” POSITION FUNCTIONS
1. Engage the brake.
2. Move selector lever to “R” position.
3. Release the brake for 4 to 5 seconds.
Does the vehicle creep backward?
YES >> GO TO 7.
NO >> Enter a check mark at “Vehicle Does Not Creep Backward in “R” Position” onAT-38, "
DIAGNOS-
TIC WORKSHEET", then continue the road test.
7.CHECK “D” POSITION FUNCTIONS
Inspect whether the vehicle creep forward when the A/T is put into the “D” position.
Does the vehicle creep forward in
“D”position?
YES >> Go toAT-48, "Cruise Test - Part 1",AT-50, "Cruise Test - Part 2"andAT-51, "Cruise Test - Part 3"
.
NO >> Enter a check mark at “Vehicle Does Not Creep Forward in “D” Position” onAT-38, "
DIAGNOSTIC
WORKSHEET", then continue the road test. Go toAT-48, "Cruise Test - Part 1",AT-50, "Cruise
Te s t - P a r t 2"andAT-51, "Cruise Test - Part 3".
CruiseTest-Part1ECS00FX3
1.CHECK STARTING OUT FROM D1
1. Drive the vehicle for about 10 minutes to warm up the engine oil and ATF.
Appropriate temperature for the ATF: 50 - 80°C (122 - 176°F)
2. Park the vehicle on a level surface.
3. Move selector lever to “P” position.
4. Start engine.
5. Move selector lever to “D” position.
6. Press accelerator pedal about half-way down to accelerate the vehicle.
With CONSULT-II
Read the gear position. Refer toAT-83, "
DATA MONITOR MODE".
Starts from D
1?
YES >> GO TO 2.
NO >> Enter a check mark at “Vehicle Cannot Be Started from D
1”onAT-38, "DIAGNOSTIC WORK-
SHEET", then continue the road test.
2.CHECK SHIFT-UP D1®D2
Press down accelerator pedal about half-way and inspect if the vehicle shifts up (D1®D2) at the appropriate
speed. Refer toAT-52, "
Vehicle Speed at Which Gear Shifting Occurs".
With CONSULT-II
Read the gear position, throttle degree and vehicle speed. Refer toAT-83, "
DATA MONITOR MODE".
Does the A/T shift-up D
1®D2at the correct speed?
YES >> GO TO 3.
NO >> Enter a check mark at “A/T Does Not Shift: D
1®D2”onAT-38, "DIAGNOSTIC WORKSHEET",
then continue the road test.

AT-50
TROUBLE DIAGNOSIS
8.CHECK LOCK-UP RELEASE
Check lock-up cancellation by depressing brake pedal lightly to decelerate.
With CONSULT-II
Select “TCC SOLENOID” with “MAIN SIGNALS” mode for “A/T”. Refer toAT-77, "
CONSULT-II REFERENCE
VA L U E".
Does lock-up cancel?
YES >> GO TO 9.
NO >> Enter a check mark at “Lock-up Is Not Released” onAT-38, "
DIAGNOSTIC WORKSHEET",then
continue the road test.
9.CHECK SHIFT-DOWN D5®D4
Decelerate by pressing lightly on brake pedal.
With CONSULT-II
Read the gear position and engine speed. Refer toAT-83, "
DATA MONITOR MODE".
When the A/T shift-down D
5®D4, does the engine speed drop smoothly back to idle?
YES >> 1. Stop the vehicle.
2. Go toAT-50, "
Cruise Test - Part 2".
NO >> Enter a check mark at “Engine Speed Does Not Return to Idle” onAT-38, "
DIAGNOSTIC WORK-
SHEET", then continue the road test. Go toAT-50, "Cruise Test - Part 2".
CruiseTest-Part2ECS00FX4
1.CHECK STARTING FROM D1
1. Move selector lever to “D” position.
2. Accelerate at half throttle.
With CONSULT-II
Read the gear position. Refer toAT-83, "
DATA MONITOR MODE".
Does it start from D
1?
YES >> GO TO 2.
NO >> Enter a check mark at “Vehicle Cannot Be Started from D
1”onAT-38, "DIAGNOSTIC WORK-
SHEET", then continue the road test.
2.CHECK SHIFT-UP D1®D2
Press accelerator pedal down all the way and inspect whether or not the A/T shifts up (D1®D2)atthecor-
rect speed. Refer toAT-52, "
Vehicle Speed at Which Gear Shifting Occurs".
With CONSULT-II
Read the gear position, throttle degree and vehicle speed. Refer toAT-83, "
DATA MONITOR MODE".
Does the A/T shift-up D
1®D2at the correct speed?
YES >> GO TO 3.
NO >> Enter a check mark at “A/T Does Not Shift: D
1®D2”onAT-38, "DIAGNOSTIC WORKSHEET",
then continue the road test.
3.CHECK SHIFT-UP D2®D3
Press accelerator pedal down all the way and inspect whether or not the A/T shifts up (D2®D3)atthecor-
rect speed. Refer toAT-52, "
Vehicle Speed at Which Gear Shifting Occurs".
With CONSULT-II
Read the gear position, throttle degree and vehicle speed. Refer toAT-83, "
DATA MONITOR MODE".
Does the A/T shift-up D
2®D3at the correct speed?
YES >> GO TO 4.
NO >> Enter a check mark at “A/T Does Not Shift: D
2®D3”onAT-38, "DIAGNOSTIC WORKSHEET",
then continue the road test.

TROUBLE DIAGNOSIS
AT-51
D
E
F
G
H
I
J
K
L
MA
B
AT
4.CHECK SHIFT-UP D3®D4AND ENGINE BRAKE
When the A/T changes speed D
3®D4, return accelerator pedal.
With CONSULT-II
Read the gear position. Refer toAT-83, "
DATA MONITOR MODE".
Does the A/T shift-up D
3®D4and apply the engine brake?
YES >> 1. Stop the vehicle.
2. Go toAT-51, "
Cruise Test - Part 3".
NO >> Enter a check mark at “A/T Does Not Shift: D
3®D4”onAT-38, "DIAGNOSTIC WORKSHEET",
then continue the road test. Go toAT-51, "
Cruise Test - Part 3".
Cruise Test - Part 3ECS00FX5
1.CHECK SHIFT-DOWN
1. Confirm overdrive control switch is ON position.
2. Confirm gear selector lever is in “D” position.
3. Accelerate vehicle using half-throttle to D
5.
4. Release accelerator pedal.
5. Set overdrive control switch to OFF position while driving in D
5.
With CONSULT-II
Read the gear position. Refer toAT-83, "
DATA MONITOR MODE".
Does A/T shift from D
5to D4(OD OFF)?
YES >> GO TO 2.
NO >> Enter a check mark at “A/T does not shift: 5th gear®4th gear” on theAT-38, "
DIAGNOSTIC
WORKSHEET", then continue the road test.
2.CHECK SHIFT-DOWN
During D
4driving, is downshift from “D”®“3”®“2”®“1” performed?
With CONSULT-II
Read the gear position. Refer toAT-83, "
DATA MONITOR MODE".
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 theAT-38, "
DIAGNOSTIC WORKSHEET", then continue the road test.
3.CHECK ENGINE BRAKE
Check engine brake.
Does engine braking effectively reduce speed in 1
1position?
YES >> 1. Stop the vehicle.
2. Perform self-diagnosis. Refer toAT-80, "
SELF-DIAGNOSTIC RESULT MODE",AT-89, "Diag-
nostic Procedure Without CONSULT-II".
NO >> Enter a check mark at “Vehicle Does Not Decelerate by Engine Brake” on theAT-38, "
DIAGNOS-
TIC WORKSHEET", then continue trouble diagnosis.

TROUBLE DIAGNOSIS
AT-53
D
E
F
G
H
I
J
K
L
MA
B
AT
Symptom ChartECS00FX8
lThe diagnostic item numbers show the sequence for inspection. Inspect in order from item 1.
lOverhaul and inspect inside the A/T only if A/T fluid condition is NG. Refer toAT-43, "A/T Fluid Con-
dition Check".
No. Items Symptom Condition Diagnostic ItemReference
page
1
Shift
ShockLarge shock. (“N”®“D”
position)
Refer toAT-180,
"Large Shock (“N”to
“D”Position)".ON vehicle1. Engine idle speedEC-38
2. Engine speed signalAT-108
3. Accelerator pedal position sensorAT- 11 6
4. Control cable adjustmentAT- 2 11
5. A/T fluid temperature sensorAT- 11 8
6. ATF pressure switch 1 and front brake solenoid valveAT-156,
AT-137
7. CAN communication lineAT- 9 1
8. A/T fluid level and stateAT- 4 3
9. Line pressure testAT- 4 4
10. Control valve with TCMAT-218
OFF vehicle11. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer toAT- 1 4 , "Cross-
Sectional View (2WD Models)",AT- 1 5 , "Cross-Sectional View
(4WD Models)".)AT-263
2Shock is too large
when changing D1
®D2.ON vehicle1. Accelerator pedal position sensorAT- 11 6
2. Control cable adjustmentAT- 2 11
3. ATF pressure switch 5 and direct clutch solenoid valveAT-160,
AT-142
4. CAN communication lineAT- 9 1
5. Engine speed signalAT-108
6. Turbine revolution sensorAT-123
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-103,
AT-125
8. A/T fluid level and stateAT- 4 3
9. Control valve with TCMAT-218
OFF vehicle 10. Direct clutchAT-298
3Shock is too large
when changing D2
®D3.ON vehicle1. Accelerator pedal position sensorAT- 11 6
2. Control cable adjustmentAT- 2 11
3. ATF pressure switch 6 and high and low reverse clutch
solenoid valveAT-162,
AT-147
4. CAN communication lineAT- 9 1
5. Engine speed signalAT-108
6. Turbine revolution sensorAT-123
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-103,
AT-125
8. A/T fluid level and stateAT- 4 3
9. Control valve with TCMAT-218
OFF vehicle 10. High and low reverse clutchAT-296

AT-54
TROUBLE DIAGNOSIS
4
Shift
ShockShockistoolarge
when changing D3
®D4.ON vehicle1. Accelerator pedal position sensorAT- 11 6
2. Control cable adjustmentAT- 2 11
3. ATF pressure switch 3 and input clutch solenoid valveAT- 1 5 8,
AT- 1 3 2
4. CAN communication lineAT- 9 1
5. Engine speed signalAT- 1 0 8
6. Turbine revolution sensorAT- 1 2 3
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 3,
AT- 1 2 5
8. A/T fluid level and stateAT- 4 3
9. Control valve with TCMAT- 2 1 8
OFF vehicle 10. Input clutchAT- 2 8 6
5Shockistoolarge
when changing D4
®D5.ON vehicle1. Accelerator pedal position sensorAT- 11 6
2. Control cable adjustmentAT- 2 11
3. ATF pressure switch 1 and front brake solenoid valveAT- 1 5 6,
AT- 1 3 7
4. CAN communication lineAT- 9 1
5. Engine speed signalAT- 1 0 8
6. Turbine revolution sensorAT- 1 2 3
7. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 3,
AT- 1 2 5
8. A/T fluid level and stateAT- 4 3
9. Control valve with TCMAT- 2 1 8
OFF vehicle10. Front brake (brake band)AT- 2 5 111. Input clutchAT- 2 8 6
6Shockistoolargefor
downshift when accel-
erator pedal is
pressed.ON vehicle1. Accelerator pedal position sensorAT- 11 6
2. Control cable adjustmentAT- 2 11
3. CAN communication lineAT- 9 1
4. Engine speed signalAT- 1 0 8
5. Turbine revolution sensorAT- 1 2 3
6. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 3,
AT- 1 2 5
7. A/T fluid level and stateAT- 4 3
8. Control valve with TCMAT- 2 1 8
OFF vehicle9. Front brake (brake band)AT- 2 5 110. Input clutchAT- 2 8 6
11. High and low reverse clutchAT- 2 9 6
12. Direct clutchAT- 2 9 8
No. Items Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-55
D
E
F
G
H
I
J
K
L
MA
B
AT
7
Shift
ShockShock is too large for
upshift when accelera-
tor pedal is released.ON vehicle1. Accelerator pedal position sensorAT- 11 6
2. Control cable adjustmentAT- 2 11
3. Engine speed signalAT-108
4. CAN communication lineAT- 9 1
5. Turbine revolution sensorAT-123
6. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-103,
AT-125
7. A/T fluid level and stateAT- 4 3
8. Control valve with TCMAT-218
OFF vehicle9. Front brake (brake band)AT-25110. Input clutchAT-286
11. High and low reverse clutchAT-296
12. Direct clutchAT-298
8Shock is too large for
lock-up.ON vehicle1. Accelerator pedal position sensorAT- 11 6
2. Control cable adjustmentAT- 2 11
3. Engine speed signalAT-108
4. CAN communication lineAT- 9 1
5. Turbine revolution sensorAT-123
6. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-103,
AT-125
7. Torque converter clutch solenoid valveAT- 11 0
8. A/T fluid level and stateAT- 4 3
9. Control valve with TCMAT-218
OFF vehicle 10. Torque converterAT-263
9Shock is too large dur-
ing engine brake.ON vehicle1. Accelerator pedal position sensorAT- 11 6
2. Control cable adjustmentAT- 2 11
3. CAN communication lineAT- 9 1
4. A/T fluid level and stateAT- 4 3
5. Control valve with TCMAT-218
OFF vehicle6. Front brake (brake band)AT-2517. Input clutchAT-286
8. High and low reverse clutchAT-296
9. Direct clutchAT-298
No. Items Symptom Condition Diagnostic ItemReference
page

AT-60
TROUBLE DIAGNOSIS
22
Slips/Will
Not
EngageWhen “D” position,
remains in 5th gear.ON vehicle1. A/T fluid level and stateAT- 4 3
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT- 1 0 3,
AT- 1 2 5
3. ATF pressure switch 1 and front brake solenoid valveAT- 1 5 6,
AT- 1 3 7
4. Line pressure testAT- 4 4
5. CAN communication lineAT- 9 1
6. Control valve with TCMAT- 2 1 8
OFF vehicle7. Front brake (brake band)AT- 2 6 38. Input clutchAT- 2 8 6
9. Gear systemAT- 2 5 1
10. High and low reverse clutchAT- 2 9 6
23Vehicle cannot be
started from D
1.
Refer toAT-186, "
Vehi-
cle Cannot Be Started
from D1".ON vehicle1. A/T fluid level and stateAT- 4 3
2. Accelerator pedal position sensorAT- 11 6
3. Line pressure testAT- 4 4
4. CAN communication lineAT- 9 1
5. Control valve with TCMAT- 2 1 8
OFF vehicle6. Torque converterAT- 2 6 3
7. Oil pump assemblyAT- 2 8 1
8. 3rd one-way clutchAT- 2 8 4
9. 1st one-way clutchAT- 2 9 1
10. Gear systemAT- 2 5 1
11. Reverse brakeAT- 2 6 3
12. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer toAT-
14, "Cross-Sectional View (2WD Models)",AT- 1 5 , "Cross-
Sectional View (4WD Models)".)AT- 2 6 3
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer toAT-14, "
Cross-
Sectional View (2WD Models)",AT-15, "Cross-Sectional View
(4WD Models)".)AT- 2 6 3
24Does not lock-up.
Refer toAT-196, "A/T
Does Not Perform
Lock-up".ON vehicle1. A/T fluid level and stateAT- 4 3
2. Line pressure testAT- 4 4
3. Engine speed signalAT- 1 0 8
4. Turbine revolution sensorAT- 1 2 3
5. Torque converter clutch solenoid valveAT- 11 0
6. CAN communication lineAT- 9 1
7. Control valve with TCMAT- 2 1 8
OFF vehicle8. Torque converterAT- 2 6 39. Oil pump assemblyAT- 2 8 1
No. Items Symptom Condition Diagnostic ItemReference
page

TROUBLE DIAGNOSIS
AT-61
D
E
F
G
H
I
J
K
L
MA
B
AT25
Slips/Will
Not
EngageDoes not hold lock-up
condition.
Refer toAT-197, "A/T
Does Not Hold Lock-
up Condition".ON vehicle1. A/T fluid level and stateAT- 4 3
2. Line pressure testAT- 4 4
3. Engine speed signalAT-108
4. Turbine revolution sensorAT-123
5. Torque converter clutch solenoid valveAT- 11 0
6. CAN communication lineAT- 9 1
7. Control valve with TCMAT-218
OFF vehicle8. Torque converterAT-2639. Oil pump assemblyAT-281
26Lock-up is not
released.
Refer toAT-199,
"Lock-up Is Not
Released".ON vehicle1. A/T fluid level and stateAT- 4 3
2. Line pressure testAT- 4 4
3. Engine speed signalAT-108
4. Turbine revolution sensorAT-123
5. Torque converter clutch solenoid valveAT- 11 0
6. CAN communication lineAT- 9 1
7. Control valve with TCMAT-218
OFF vehicle8. Torque converterAT-2639. Oil pump assemblyAT-281
27No shock at all or the
clutch slips when vehi-
cle changes speed D1
®D2.ON vehicle1. A/T fluid level and stateAT- 4 3
2. Vehicle speed sensor A/T and vehicle speed sensor MTRAT-103,
AT-125
3. ATF pressure switch 5 and direct clutch solenoid valveAT-160,
AT-142
4. CAN communication lineAT- 9 1
5. Line pressure testAT- 4 4
6. Control valve with TCMAT-218
OFF vehicle7. Torque converterAT-263
8. Oil pump assemblyAT-281
9. 3rd one-way clutchAT-284
10. Gear systemAT-251
11 . D i r e c t c l u t c hAT-298
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer toAT- 1 4 , "
Cross-
Sectional View (2WD Models)",AT- 1 5 , "Cross-Sectional View
(4WD Models)".)AT-263
No. Items Symptom Condition Diagnostic ItemReference
page