2005 NISSAN NAVARA brake

TROUBLE DIAGNOSIS
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4. Securely engage the parking brake so that the tires do not turn.
5. Start the engine, then measure the line pressure at both idle and
the stall speed.
CAUTION:
lKeep the brake pedal pressed all the way down during
measurement.
lWhen measuring the line pressure at the stall speed.
Refer toAT-43, "
STALL TEST".
6. After the measurements are complete, install the oil pressure
detection plug and tighten to the specified torque. Refer toAT-
251, "Components".
CAUTION:
lDo not reuse O-ring.
lApply ATF to O-ring.
Line Pressure
Judgement of Line Pressure Test
SAT513G
SAT493G
Engine speedLine pressure [kPa (bar, kg/cm
2,psi)]
“R” position “D” position
At idle speed 425 - 465 (4.3 - 4.6, 4.3 - 4.7, 62 - 67) 379 - 428 (3.8 - 4.3, 3.9 - 4.4, 55 - 62)
At stall speed 1,605 - 1,950 (16.0 - 19.5, 16.4 - 19.9, 233 - 283) 1,310 - 1,500 (13.1 - 15.0, 13.4 - 15.3, 190 - 218)
Judgement Possible cause
Idle speedLow for all positions
(“P”, “R”, “N” and “D”)Possible causes include malfunctions in the pressure supply system and low oil pump output.
For example
lOil pump wear
lPressure regulator valve or plug sticking or spring fatigue
lOil strainer
oil pump
pressure regulator valve passage oil leak
lEngine idle speed too low
Only low for a specific
positionPossible causes include an oil pressure leak in a passage or device related to the position
after the pressure is distributed by the manual valve.
HighPossible causes include a sensor malfunction or malfunction in the line pressure adjustment
function.
For example
lAccelerator pedal position signal malfunction
lA/T fluid temperature sensor malfunction
lLine pressure solenoid malfunction (sticking in OFF state, filter clog, cut line)
lPressure regulator valve or plug sticking

TROUBLE DIAGNOSIS
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Check at IdleECS00FX2
1.CHECK STARTING THE ENGINE
1. Park vehicle on level surface.
2. Move selector lever to “P” or “N” position.
3. Turn ignition switch OFF.
4. Start engine.
Does the engine start?
YES >> GO TO 2.
NO >> Stop the road test and go toAT- 1 7 7 , "
Engine Cannot Be Started in“P”or“N”Position".
2.CHECK STARTING THE ENGINE
1. Turn ignition switch ON.
2. Move selector lever in “D”, “3”, “2”, “1” or “R” position.
3. Start engine.
Does the engine start in any positions?
YES >> Stop the road test and go toAT- 1 7 7 , "Engine Cannot Be Started in“P”or“N”Position".
NO >> GO TO 3.
3.CHECK “P” POSITION FUNCTIONS
1. Move selector lever to “P” position.
2. Turn ignition switch OFF.
3. Release the parking brake.
4. Push the vehicle forward or backward.
5. Engage the parking brake.
When you push the vehicle with the parking brake released, does it move?
YES >> Enter a check mark at “In “P” Position Vehicle Moves When Pushed” onAT-38, "DIAGNOSTIC
WORKSHEET", then continue the road test.
NO >> GO TO 4.
4.CHECK “N” POSITION FUNCTIONS
1. Start engine.
2. Move selector lever to “N” position.
3. Release the parking brake.
Does vehicle move forward or backward?
YES >> Enter a check mark at “In “N” Position Vehicle Moves” onAT-38, "DIAGNOSTIC WORKSHEET",
then continue the road test.
NO >> GO TO 5.
5.CHECK SHIFT SHOCK
1. Engage the brake.
2. Move selector lever to “D” position.
When the A/T is shifted from
“N”to“D”, is there an excessive shock?
YES >> Enter a check mark at “Large Shock (“N” to “D” Position)” onAT-38, "DIAGNOSTIC WORK-
SHEET"the diagnosis worksheet, then continue the road test.
NO >> GO TO 6.

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
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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
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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
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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