2005 NISSAN NAVARA check engine

AT-106
DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)
Diagnostic Procedure
ECS00FY7
1.CHECK INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine)
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Start engine.
4. Read the value of “VHCL/S SE-A/T” while driving.
Check the value changes according to driving speed.
OK or NG
OK >> GO TO 6.
NG >> GO TO 2.
2.CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer toAT- 1 6 4 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.DETECT MALFUNCTIONING ITEM
Check the following.
lA/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
Item name Condition Display value
VHCL/S SE-A/T During drivingApproximately matches the
speedometer reading.
SCIA2148E

DTC P0725 ENGINE SPEED SIGNAL
AT-109
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Diagnostic ProcedureECS00FYD
1.CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer toAT-80, "
SELF-DIAGNOSTIC RESULT MODE",AT-89, "Diagnostic Procedure
Without CONSULT-II".
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer toAT-91, "DTC U1000 CAN COMMUNICATION LINE".
NO >> GO TO 2.
2.CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. While monitoring engine speed, check for engine speed change
corresponding to wide-open throttle position signal.
OK or NG
OK >> GO TO 3.
NG >> Perform self-diagnosis for “ENGINE” with CONSULT-II. Refer toEC-62, "
SELF-DIAGNOSTIC
MODE".
3.CHECK DTC
PerformAT- 1 0 8 , "
DTC Confirmation Procedure".
OK or NG
OK >>INSPECTION END
NG >> GO TO 4.
4.CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer toAT- 1 6 4 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT".
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5.DETECT MALFUNCTIONING ITEM
Check the following.
lA/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace control valve with TCM. Refer toAT- 2 1 8 , "Control Valve With TCM and A/T Fluid Temper-
ature Sensor 2".
NG >> Repair or replace damaged parts.
Item name Condition Display value
ENGINE SPEED Engine runningClosely matches the tachome-
ter reading.
PCIA0041E

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-111
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4. If DTC is detected, go toAT- 111 , "Diagnostic Procedure".
Diagnostic ProcedureECS00FYJ
1.CHECK INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T”
with CONSULT-II.
3. Start engine.
4. Read the value of “TCC SOLENOID” while driving.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2.CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer toAT- 1 6 4 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.DETECT MALFUNCTIONING ITEM
Check the following.
lA/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace control valve with TCM. Refer toAT- 2 1 8 , "Control Valve With TCM and A/T Fluid Temper-
ature Sensor 2".
NG >> Repair or replace damaged parts.
4.CHECK DTC
PerformAT- 11 0 , "
DTC Confirmation Procedure".
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
Item name Condition Display value (Approx.)
TCC SOLENOID When performing lock-up 0.4 - 0.6 A
SCIA4793E

AT-112
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
PFP:31940
DescriptionECS00FYK
This malfunction is detected when A/T does not shift into 5th gear position or the torque converter clutch does
not lock-up as instructed by TCM. This is not only caused by electrical malfunction (circuits open or shorted)
but also by mechanical malfunction such as control valve sticking, improper solenoid valve operation, etc.
CONSULT-II Reference ValueECS00FYL
On Board Diagnosis LogicECS00FYM
Diagnostic trouble code “P0744 A/T TCC S/V FNCTN” with CONSULT-II or 3rd judgement flicker without
CONSULT-II is detected under the following conditions.
lWhen A/T cannot perform lock-up even if electrical circuit is good.
lWhen TCM detects as irregular by comparing difference value with slip rotation.
Possible CauseECS00FYN
lHarness or connectors
(The solenoid circuit is open or shorted.)
lTorque converter clutch solenoid valve
lHydraulic control circuit
DTC Confirmation ProcedureECS00FYO
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine and Select “TCC S/V FNCTN CHECK” of “DTC
WORK SUPPORT” mode for “A/T” with CONSULT-II and touch
“START”.
2. Accelerate vehicle to more than 80 km/h (50 MPH) and maintain
the following condition continuously until “TESTING” has turned
to “COMPLETE”. (It will take approximately 30 seconds after
“TESTING” shows.)
ACCELE POSI: More than 1.0/8 (at all times during step 4)
TCC SOLENOID: 0.4 - 0.6 A
SLCT LVR POSI: “D” position
[Reference speed: Constant speed of more than 80 km/h (50
MPH)]
GEAR: “5” position
–For shift schedule, refer toAT-52, "Vehicle Speed at Which Lock-up Occurs/Releases".
–If “TESTING” does not appear on CONSULT-II for a long time, select “SELF-DIAG RESULTS”. In
case a DTC other than P0744 is shown, refer to applicable “TROUBLE DIAGNOSIS FOR DTC”.
3. Make sure that “OK” is displayed. (If “NG” is displayed, refer toAT- 11 3 , "
Diagnostic Procedure".)
Refer to shift scheduleAT-52, "
Vehicle Speed at Which Lock-up Occurs/Releases".
Item name Condition Display value (Approx.)
TCC SOLENOID When performing lock-up 0.4 - 0.6 A
BCIA0031E

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
AT-113
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WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle and maintain the following conditions for at least 30 consecutive seconds.
Vehicle speed: 80 km/h (50 MPH) or more
Accelerator opening: More than 1.0/8
Selector lever position: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
–For shift schedule, refer toAT-52, "Vehicle Speed at Which Lock-up Occurs/Releases".
3. Perform self-diagnosis. Refer toAT-89, "
Diagnostic Procedure Without CONSULT-II".
4. If DTC is detected go toAT- 11 3 , "
Diagnostic Procedure".
Diagnostic ProcedureECS00FYP
1.CHECK INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T”
with CONSULT-II.
3. Start engine.
4. Read the value of “TCC SOLENOID” while driving.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2.CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer toAT- 1 6 4 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.DETECT MALFUNCTIONING ITEM
Check the following.
lA/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace control valve with TCM. Refer toAT- 2 1 8 , "Control Valve With TCM and A/T Fluid Temper-
ature Sensor 2".
NG >> Repair or replace damaged parts.
4.CHECK DTC
PerformAT- 11 2 , "
DTC Confirmation Procedure".
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
Item name Condition Display value (Approx.)
TCC SOLENOID When performing lock-up 0.4 - 0.6 A
SCIA4793E

DTC P0745 LINE PRESSURE SOLENOID VALVE
AT-115
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Diagnostic ProcedureECS00FYV
1.CHECK INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T”
with CONSULT-II.
3. Start engine.
4. Read the value of “LINE PRES SOL” while driving.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2.CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer toAT- 1 6 4 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.DETECT MALFUNCTIONING ITEM
Check the following.
lA/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace control valve with TCM. Refer toAT- 2 1 8 , "Control Valve With TCM and A/T Fluid Temper-
ature Sensor 2".
NG >> Repair or replace damaged parts.
4.CHECK DTC
PerformAT- 11 4 , "
DTC Confirmation Procedure".
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
Item name Condition Display value (Approx.)
LINE PRES SOL During driving 0.2 - 0.6 A
SCIA4793E

AT-116
DTC P1705 THROTTLE POSITION SENSOR
DTC P1705 THROTTLE POSITION SENSOR
PFP:22620
DescriptionECS00G43
The accelerator pedal position sensor sends a signal to ECM, and ECM sends signals to TCM with CAN com-
munication.
CONSULT-II Reference ValueECS00G44
On Board Diagnosis LogicECS00G45
Diagnostic trouble code “P1705 TP SEN/CIRC A/T” with CONSULT-II or 15th judgement flicker without CON-
SULT-II is detected when TCM does not receive the proper accelerator pedal position signals (input by CAN
communication) from ECM.
Possible CauseECS00G46
Harness or connectors
(The sensor circuit is open or shorted.)
DTC Confirmation ProcedureECS00G47
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Touch “START”.
4. Start engine and let it idle for 1 second.
5. If DTC is detected, go toAT- 11 6 , "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Start engine and let it idle for 1 second.
2. Perform self-diagnosis. Refer toAT-89, "
Diagnostic Procedure Without CONSULT-II".
3. If DTC is detected, go toAT- 11 6 , "
Diagnostic Procedure".
Diagnostic ProcedureECS00G48
1.CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer toAT-80, "
SELF-DIAGNOSTIC RESULT MODE",AT-89, "Diagnostic Procedure
Without CONSULT-II".
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer toAT-91, "DTC U1000 CAN COMMUNICATION LINE".
NO >> GO TO 2.
Item name Condition Display value
ACCELE POSIReleased accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8.0/8
BCIA0031E

DTC P1705 THROTTLE POSITION SENSOR
AT-117
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2.CHECK DTC WITH TCM
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Depress accelerator pedal and read the value of “ACCELE
POSI”.
4. Select “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-
II. Refer toAT-80, "
SELF-DIAGNOSTIC RESULT MODE".
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.CHECK DTC WITH ECM
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “ENGINE” with CON-
SULT-II. Refer toEC-59, "
CONSULT-II Function (ENGINE)".
OK or NG
OK >> GO TO 4.
NG >> Check the DTC detected item. Refer toEC-59, "
CON-
SULT-II Function (ENGINE)".
lIf CAN communication line is detected, go toAT- 9 1 ,
"DTC U1000 CAN COMMUNICATION LINE".
4.CHECK DTC
PerformAT- 11 6 , "
DTC Confirmation Procedure".
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
5.CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer toAT- 1 6 4 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT".
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6.DETECT MALFUNCTIONING ITEM
Check the following.
lA/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace control valve with TCM. Refer toAT- 2 1 8 , "Control Valve With TCM and A/T Fluid Temper-
ature Sensor 2".
NG >> Repair or replace damaged parts.
Item name Condition Display value
ACCELE POSIReleased accelerator pedal. 0.0/8
Fully depressed accelerator pedal. 8.0/8
PCIA0070E
BCIA0030E