2003 NISSAN X-TRAIL ECU

DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
AT-113
[EURO-OBD]
D
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2. Drive vehicle and check for an increase of “VHCL/S SE·MTR”
value increase.
If the check result is NG, go to AT- 11 5 , "
Diagnostic Procedure" .
If the check result is OK, go to following step.
3. Select “DATA MONITOR” mode for “ENGINE” with CONSULT-II.
4. Start engine and maintain the following conditions for at least 5
consecutive seconds.
VHCL SPEED SE: 30 km/h (19 MPH) or more
THRTL POS SEN: More than 1.2V
Selector lever: D position (OD ON)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
If the check result is NG, go to AT- 11 5 , "
Diagnostic Procedure" .
If the check result is OK, go to following step.
5. Maintain the following conditions for at least 5 consecutive seconds.
CMPS·RPM (REF): 3,500 rpm or more
THRTL POS SEN: More than 1.2V
Selector lever: D position (OD ON)
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
WITH GST
Follow the procedure “WITH CONSULT-II”.
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions for more than 5 sec-
onds.
Selector lever position: D position
Vehicle speed: 30 km/h (19 MPH) or more
Throttle position: greater than 1.0/8 of the full throttle posi-
tion
3. Perform self-diagnosis.
Refer to AT- 5 2 , "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT- 11 5 , "
Diagnostic Procedure" .
SCIA5358E
SAT014K
SCIA5591E

DTC P0725 ENGINE SPEED SIGNAL
AT-119
[EURO-OBD]
D
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DTC P0725 ENGINE SPEED SIGNALPFP:24825
DescriptionECS004R7
The engine speed signal is sent from the ECM to the TCM.
On Board Diagnosis LogicECS00CTP
Possible CauseECS00CTQ
Check the following items.

Harness or connector (The sensor circuit is open or shorted.)
DTC Confirmation ProcedureECS00CTR
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and
wait at least 5 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
2. Start engine and maintain the following conditions for at least 10
consecutive seconds.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: More than 1.2V
Selector lever: D position (OD ON)
3. If the check result is NG, go to AT- 1 2 2 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Diagnostic trouble code Malfunction is detected when... Check item (Possible cause)
: ENGINE SPEED SIG
TCM does not receive the proper voltage
signal from ECM.

Harness or connectors
(The sensor circuit is open or shorted.)
: P0725
SAT014K
SCIA5358E

AT-148
[EURO-OBD]
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVEPFP:31940
DescriptionECS004RQ
The torque converter clutch solenoid valve is activated, with the gear
in “D
4 ”, by the TCM in response to signals sent from the vehicle
speed and throttle position sensors. Lock-up piston operation will
then be controlled.
Lock-up operation, however, is prohibited when A/T fluid tempera-
ture is too low.
When the accelerator pedal is depressed (less than 2/8) in lock-up
condition, the engine speed should not change abruptly. If there is a
big jump in engine speed, there is no lock-up.
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
On Board Diagnosis LogicECS00CU4
Possible CauseECS00CU5
Check the following items.

Torque converter clutch solenoid valve

Harness or connector
(The solenoid circuit is open or shorted.)
DTC Confirmation ProcedureECS00CU6
CAUTION:

Always drive vehicle at a safe speed.

If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait
at least 10 seconds before continuing.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and
wait at least 5 seconds before conducting 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 “DATA MONITOR” mode for “A/T” with CONSULT-II and
wait at least 1 second.
3. Start engine and maintain the following conditions for at least 5
consecutive seconds.
VHCL SPEED SE: 80 km/h (50 MPH) or more
THROTTLE POSI: 0.5/8 - 1.0/8
Selector lever: D position (OD ON)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
4. If the check result is NG go to AT- 1 5 1 , "
Diagnostic Procedure" .
SCIA0718E
Monitor item Condition Specification
Torque converter clutch solenoid valve
dutyLock-up OFF
↓
Lock-up ONApproximately 4%
↓
Approximately 94%
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: T/C CLUTCH SOL/V
TCM detects an improper voltage drop
when it tries to operate the solenoid valve.

Harness or connectors
(The solenoid circuit is open or shorted.)

T/C clutch solenoid valve
: P0740
SAT014K

AT-174
[EURO-OBD]
DTC P1705 ACCELERATOR PEDAL POSITION (APP) SENSOR

3. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
4. Start engine and maintain the following conditions for at least 3
consecutive seconds. Then release accelerator pedal com-
pletely.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: Approximately 3V or less
Selector lever: D position (OD ON)
If the check result is NG, go to AT- 1 7 6 , "
Diagnostic Procedure" .
If the check result is OK, go to following step.
5. Maintain the following conditions for at least 3 consecutive sec-
onds. Then release accelerator pedal completely.
VHCL SPEED SE: 10 km/h (6 MPH) or more
Accelerator pedal: Wide open throttle
Selector lever: D position (OD ON)
WITH GST
Follow the procedure “WITH CONSULT-II”.
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions for more than 3 sec-
onds.
Selector lever position: D position
Vehicle speed: 10km/h (6MPH) or more
Throttle position: greater than 4.0/8 of the full throttle posi-
tion
3. Perform self-diagnosis.
Refer to AT- 5 2 , "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT- 1 7 6 , "
Diagnostic Procedure" .
SCIA5358E
SCIA5593E

VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
AT-333
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT

2. Drive vehicle and check for an increase of “VHCL/S SE·MTR” value.
If the check result is NG, go to AT- 3 3 5 , "
Diagnostic Procedure" .
If the check result is OK, go to following step.
3. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
4. Start engine and maintain the following conditions for at least 5
consecutive seconds.
VHCL SPEED SE: 30 km/h (19 MPH) or more
THRTL POS SEN: More than 1.2V
SLCT LVR POSI: D position
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
If the check result is NG, go to AT- 3 3 5 , "
Diagnostic Procedure" .
If the check result is OK, go to following step.
5. Maintain the following conditions for at least 5 consecutive sec-
onds.
ENGINE SPEED: 3,500 rpm or more
THRTL POS SEN: More than 1.2V
SLCT LVR POSI: D position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions for more than 5 sec-
onds.
Selector lever position: D position
Vehicle speed: 30 km/h (19 MPH) or more
Throttle position: greater than 1.0/8 of the full throttle posi-
tion
3. Perform self-diagnosis.
Refer to AT- 2 4 6 , "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT- 3 3 5 , "
Diagnostic Procedure" .
SCIA5358E
SAT014K
SCIA5591E

AT-346
[ALL]
ACCELE RATOR PEDAL POSITION (APP) SENSOR

4. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
5. Touch “SELECTION FROM MENU”
6. Touch “VHCL SPEED SE” and “THRTL POS SEN”.
Touch “START”.
7. Start engine and maintain the following conditions for at least 3
consecutive seconds. Then release accelerator pedal com-
pletely.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: Approximately 3V or less
SLCT LVR POSI: D position
If the check result is NG, go to AT- 3 4 8 , "
Diagnostic Procedure" .
If the check result is OK, go to following step.
8. Maintain the following conditions for at least 3 consecutive seconds. Then release accelerator pedal com-
pletely.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THROTTLE POSI: 8.0/8
SLCT LVR POSI: D position
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions for more than 3 seconds.
Selector lever position: D position
Vehicle speed: 10 km/h (6 MPH) or more
Throttle position: greater than 4.0/8 of the full throttle position
3. Perform self-diagnosis.
Refer to AT- 5 2 , "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT- 3 4 8 , "
Diagnostic Procedure" .
SCIA5358E
SAT014K
SCIA5593E

AT-368
[ALL]
TORQUE CONVERTER CLUTCH SOLENOID VALVE

TORQUE CONVERTER CLUTCH SOLENOID VALVEPFP:31940
DescriptionECS004U4
The torque converter clutch solenoid valve is activated, with the gear
in “D
4 ”, by the TCM in response to signals sent from the vehicle
speed and throttle position sensors. Lock-up piston operation will
then be controlled.
Lock-up operation, however, is prohibited when A/T fluid tempera-
ture is too low.
When the accelerator pedal is depressed (less than 2/8) in lock-up
condition, the engine speed should not change abruptly. If there is a
big jump in engine speed, there is no lock-up.
CONSULT-II Reference ValueECS00CSV
Remarks: Specification data are reference values.
On Board Diagnosis LogicECS00CSW
Possible CauseECS00CW8
Check the following items.

Torque converter clutch solenoid valve.

Harness or connector.
(The solenoid circuit is open or shorted.)
DTC Confirmation ProcedureECS00CSX
CAUTION:

Always drive vehicle at a safe speed.

If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait
at least 10 seconds before continuing.
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 “DATA MONITOR” mode for “A/T” with CONSULT-II and
wait at least 1 second.
3. Start engine and maintain the following condition for at least 5
consecutive seconds.
VHCL SPEED SE: 80 km/h (50 MPH) or more
THROTTLE POSI: 0.5/8 - 1.0/8
SLCT LVR POSI: D position
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
4. If the check result is NG, go to AT- 3 7 1 , "
Diagnostic Procedure" .
SCIA0718E
Monitor item Condition Specification
Torque converter clutch solenoid valve
dutyLock-up OFF
↓
Lock-up ONApproximately 4%
↓
Approximately 94%
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: T/C CLUTCH SOL/V
TCM detects an improper voltage drop
when it tries to operate the solenoid valve.

Harness or connectors
(The solenoid circuit is open or shorted.)

T/C clutch solenoid valve
: 7th judgement flicker
SAT014K

AT-382
[ALL]
ENGINE SPEED SIGNAL

ENGINE SPEED SIGNALPFP:24825
DescriptionECS004UC
The engine speed signal is sent from the ECM to the TCM.
CONSULT-II Reference ValueECS00CT2
Remarks: Specification data are reference values.
On Board Diagnosis LogicECS00CT3
DTC Confirmation ProcedureECS00CT4
CAUTION:

Always drive vehicle at a safe speed.

If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait
at least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
2. Start engine and maintain the following conditions for at least 10
consecutive seconds.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: More than 1.2V
SLCT LVR POSI: D position
3. If the check result is NG, go to AT- 3 8 4 , "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions for more than 10 seconds.
Selector lever position: D position
Vehicle speed: higher than 10 km/h (6 MPH)
Throttle position: greater than 1.0/8 of the full throttle position
3. Perform self-diagnosis.
Refer to AT- 5 2 , "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT- 3 8 4 , "
Diagnostic Procedure" .
Monitor item Condition Display value
ENGINE SPEED (rpm) Engine running Approximately matches the tachometer
reading.
Diagnostic trouble code Malfunction is detected when... Check item (Possible cause)
: ENGINE SPEED SIG
TCM does not receive the proper voltage
signal from ECM.

Harness or connectors
(The sensor circuit is open or shorted.)
: 9th judgement flicker
SAT014K
SCIA5599E