2005 NISSAN NAVARA check engine

AT-46
TROUBLE DIAGNOSIS
ROAD TEST
Description
lThe road test inspects overall performance of A/T and analyzes possible malfunction causes.
lThe road test is perform in the following three stages.
1. Check before engine is started. Refer toAT-46
.
2. Check at idle. Refer toAT-47
.
3. Cruise test.
lInspect all the items from Part 1 to Part 3. Refer toAT-48,AT-50,AT-51.
lBefore beginning the road test, check the test procedure and inspection items.
lTest all inspection items until the symptom is uncovered. Diagnose NG items when all road tests are com-
plete.
CheckBeforeEngineIsStartedECS00FX1
1.CHECK OD OFF INDICATOR LAMP
1. Park vehicle on level surface.
2. Move selector lever to “P” position.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON. (Do not start engine.)
Does OD OFF indicator lamp light up for about 2 seconds?
YES >> 1. Turn ignition switch OFF.
2. Perform self-diagnosis and record all NG items onAT-38, "
DIAGNOSTIC WORKSHEET".
Refer toAT-80, "
SELF-DIAGNOSTIC RESULT MODE",AT-89, "TCM SELF-DIAGNOSTIC
PROCEDURE (WITHOUT CONSULT-II)".
3. Go toAT-47, "
Check at Idle".
NO >> Stop the road test and go toAT- 1 7 7 , "
OD OFF Indicator Lamp Does Not Come On".
Stall speedOil pressure does not
rise higher than the oil
pressure for idle.Possible causes include a sensor malfunction or malfunction in the pressure adjustment
function.
For example
lAccelerator pedal position signal malfunction
lTCM malfunction
lLine pressure solenoid malfunction (shorting, sticking in ON state)
lPressure regulator valve or plug sticking
lPilot valve sticking or pilot filter clogged
The pressure rises, but
does not enter the stan-
dard position.Possible causes include malfunctions in the pressure supply system and malfunction in the
pressure adjustment function.
For example
lAccelerator pedal position signal malfunction
lLine pressure solenoid malfunction (sticking, filter clog)
lPressure regulator valve or plug sticking
lPilot valve sticking or pilot filter clogged
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. Judgement Possible cause

TROUBLE DIAGNOSIS
AT-47
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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
AT-51
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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
AT-53
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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

TROUBLE DIAGNOSIS
AT-77
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CONSULT-II Function (A/T)ECS00FXA
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
FUNCTION
CONSULT-II REFERENCE VALUE
NOTICE:
1. The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each sole-
noid).
Check for time difference between actual shift timing and the CONSULT-II display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:
–Actual shift schedule has more or less tolerance or allowance,
–Shift schedule indicated in Service Manual refers to the point where shifts start, and
–Gear position displayed on CONSULT-II indicates the point where shifts are completed.
3. Display of solenoid valves on CONSULT-II changes at the start of shifting, while gear position is displayed
upon completion of shifting (which is computed by TCM).
Diagnostic test mode Function Reference page
Self-diagnostic results Self-diagnostic results can be read and erased quickly.AT- 8 0
Data monitor Input/Output data in the ECU can be read.AT- 8 3
CAN diagnostic support
monitorThe results of transmit/receive diagnosis of CAN communication can be read.AT- 8 6
Function testConducted by CONSULT-II instead of a technician to determine whether each system
is “OK” or “NG”.—
DTC work support Select the operating condition to confirm Diagnostic Trouble Codes.AT- 8 6
ECU part number ECU part number can be read. —
Item name Condition Display value (Approx.)
VHCL/S SE-A/T
During drivingApproximately matches the speed-
ometer reading.
VHCL/S SE-MTR
ACCELE POSIReleased accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8.0/8
CLSD THL POSReleased accelerator pedal. ON
Fully depressed accelerator pedal. OFF
W/O THL POSFully depressed accelerator pedal. ON
Released accelerator pedal. OFF
BRAKE SWDepressed brake pedal. ON
Released brake pedal. OFF
ENGINE SPEED Engine runningClosely matches the tachometer
reading.
TURBINE REV During driving (lock-up ON)Approximately matches the engine
speed.
ATFTEMPSE1
0°C(32°F)-20°C(68°F)-80°C (176°F)3.3 - 2.7 - 0.9 V
ATFTEMPSE23.3 - 2.5 - 0.7 V
TCC SOLENOID When perform lock-up 0.4 - 0.6 A
LINE PRES SOL During driving 0.2 - 0.6 A
FR/B SOLENOIDFront brake engaged. Refer toAT- 1 7
. 0.6 - 0.8 A
Front brake disengaged. Refer toAT- 1 7
.0-0.05A

AT-80
TROUBLE DIAGNOSIS
SELF-DIAGNOSTIC RESULT MODE
Operation Procedure
After performing self-diagnosis, place check marks for results on theAT-38, "DIAGNOSTIC WORKSHEET".
Reference pages are provided following the items.
1. PerformAT- 7 9 , "
CONSULT-II SETTING PROCEDURE".
2. Touch “SELF-DIAG RESULTS”.
Display shows malfunction experienced since the last erasing
operation.
Display Items List
X: Applicable, —: Not applicable
BCIA0031E
Items (CONSULT-II
screen terms)Malfunction is detected when...TCM self-diagnosis
Reference page
DTC
CAN COMM CIRCUIT
lWhen a malfunction is detected in CAN communications U1000AT- 9 1
STARTER RELAY/
CIRC
lIf this signal is ON other than in “P” or “N” position, this is
judged to be a malfunction.
(And if it is OFF in “P” or “N” position, this too is judged to
be a malfunction.)P0615AT- 9 4
TCMlTCM is malfunctioning. P0700AT- 9 8
PNP SW/CIRC
lPNP switch 1-4 signals input with impossible pattern
l“P” position is detected from “N” position without any other
position being detected in between.P0705AT- 9 9
VEH SPD SEN/CIR AT
lSignal from vehicle speed sensor A/T (Revolution sensor)
not input due to cut line or the like
lUnexpected signal input during running
lAfter ignition switch is turned ON, unexpected signal input
from vehicle speed sensor MTR before the vehicle starts
movingP0720AT- 1 0 3
ENGINE SPEED SIGlTCM does not receive the CAN communication signal from
the ECM.P0725AT- 1 0 8
TCC SOLENOID/CIRClNormal voltage not applied to solenoid due to cut line,
short, or the likeP0740AT- 11 0
A/T TCC S/V FNCTN
lA/T cannot perform lock-up even if electrical circuit is good.
lTCM detects as irregular by comparing difference value
with slip rotation.P0744AT- 11 2
L/PRESS SOL/CIRC
lNormal voltage not applied to solenoid due to cut line,
short, or the like
lTCM detects as irregular by comparing target value with
monitor value.P0745AT- 11 4
TP SEN/CIRC A/TlTCM does not receive the proper accelerator pedal posi-
tion signals (input by CAN communication) from ECM.P1705AT- 11 6
ATF TEMP SEN/CIRClDuring running, the ATF temperature sensor signal voltage
is excessively high or lowP1710AT- 11 8
TURBINE REV S/CIRC
lTCM does not receive the proper voltage signal from the
sensor.
lTCM detects an irregularity only at position of 4th gear for
turbine revolution sensor 2.P1716AT- 1 2 3