check engine NISSAN ALMERA TINO 2001 Service Owner's Manual

3 CHECK INPUT SIGNAL OF CVT FLUID TEMPERATURE SENSOR (Without CONSULT-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 47 and ground while warming up CVT.
Voltage:
Cold [20ÉC (68ÉF)]®Hot [80ÉC (176ÉF)]:
Approximately 1.5V®0.5V
SAT420JB
3. Turn ignition switch to ªOFFº position.
4. Disconnect TCM harness connector.
5. Check continuity between terminal 42 and ground.
Continuity should exist.
SAT421J
If OK, check harness for short to ground and short to power.
OK or NG
OK©GO TO 4.
NG©Check the following item:
+Harness for short to ground or short to power or open between TCM, ECM and termi-
nal cord assembly (Main harness)
+Ground circuit for ECM
Refer to EC section (ªTROUBLE DIAGNOSIS FOR POWER SUPPLYº).
4 CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-74.
OK or NG
OK©INSPECTION END
NG©1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness con-
nector.
DTC P0710 CVT FLUID TEMPERATURE
SENSOR CIRCUIT
EURO-OBD
Diagnostic Procedure (Cont'd)
AT-78

DescriptionNLAT0220The primary speed sensor detects the primary pulley revolution
speed sends a signal to the ECM.
TCM TERMINALS AND REFERENCE VALUENLAT0220S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard (Approx.)
38 G/YPrimary speed
sensorWhen driving [L position, 20 km/h (12 MPH)], the pulse measure-
ment by using the pulse measurement function of CONSULT-II.
+CONSULT-II cable connected to data link connector.
+This inspection cannot be measured by circuit tester.900 Hz
ON BOARD DIAGNOSIS LOGICNLAT0220S02
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: PRI SPEED SIG/CIRC
TCM does not receive the proper voltage
signal from the sensor.+Harness or connectors
(The sensor circuit is open or shorted.)
+Primary speed sensor
: P0715
: MIL Code No. 0715
SAT250K
SAT252K
SAT255K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NLAT0220S03CAUTION:
+Always drive vehicle at a safe speed.
+Be careful not to rev engine into the red zone on the
tachometer.
NOTE:
If ªDIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DUREº has been previously conducted, always turn ignition
switch ªOFFº 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 ªONº and select ªDATA MONITORº mode
for ªENGINEº with CONSULT-II.
2) Start engine and maintain the following conditions for at least
5 consecutive seconds.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: More than 1.3V
Selector lever: D position
ENG SPEED: 450 rpm or more
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 ªDiagnostic Procedureº, AT-82.
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P0715 PRIMARY SPEED SENSOREURO-OBD
Description
AT-79

Diagnostic ProcedureNLAT0222
1 CHECK PRIMARY SPEED SENSOR
Refer to ªComponent Inspectionº, AT-83.
OK or NG
OK (With CONSULT-II)©GO TO 2.
OK (Without CONSULT-
II)©GO TO 3.
NG©Repair or replace primary speed sensor.
2 CHECK INPUT SIGNAL (With CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select ªTCM INPUT SIGNALSº in ªDATA MONITORº mode for ªCVTº with CONSULT-II.
3. Read out the value of ªI/P PULLY SPDº while driving.
Check the value changes according to driving speed. (Almost same value as engine speed)
OK or NG
OK©GO TO 3.
NG©Check the following items:
+Harness for short or open between TCM, ECM and primary speed sensor (Main har-
ness)
+Ground circuit for ECM
Refer to EC section (ªTROUBLE DIAGNOSIS FOR POWER SUPPLYº).
3 CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-79.
OK or NG
OK©INSPECTION END
NG©1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness con-
nector.
DTC P0715 PRIMARY SPEED SENSOREURO-OBD
Diagnostic Procedure
AT-82

DescriptionNLAT0038The vehicle speed sensor CVT (secondary speed sensor) detects
the revolution of the idler gear parking pawl lock gear and emits a
pulse signal. The pulse signal is sent to the TCM which converts it
into vehicle speed.
TCM TERMINALS AND REFERENCE VALUENLAT0038S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard (Approx.)
29 G/RSecondary speed
sensorWhen driving [D position, 20 km/h (12 MPH)], the pulse measure-
ment by using the pulse measurement function of CONSULT-II.
+CONSULT-II cable connected to data link connector.
+This inspection cannot be measured by circuit testelr.600 Hz
42 BThrottle position
sensor
(Ground)
ÐÐ
ON BOARD DIAGNOSIS LOGICNLAT0038S02
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: VEH SPD SEN/CIR AT
TCM does not receive the proper voltage
signal from the sensor.+Harness or connectors
(The sensor circuit is open or shorted.)
+Secondary speed sensor
: P0720
: MI Code No. 0720
SAT250K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NLAT0038S03CAUTION:
+Always drive vehicle at a safe speed.
+Be careful not to rev engine into the red zone on the
tachometer.
NOTE:
If ªDIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DUREº has been previously conducted, always turn ignition
switch ªOFFº and wait at least 5 seconds before conducting
the next test.
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
DTC P0720 VEHICLE SPEED SENSOR
(SECONDARY SPEED SENSOR)
EURO-OBD
Description
AT-84

SAT252K
SAT255K
With CONSULT-II
1) Turn ignition switch ªONº and select ªDATA MONITORº mode
for ªENGINEº with CONSULT-II.
2) Start engine and maintain the following conditions for at least
12 consecutive seconds.
THRTL POS SEN: More than 1.3V
Selector lever: 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 ªDIAGNOSTIC PROCEDUREº,
AT-88.
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P0720 VEHICLE SPEED SENSOR
(SECONDARY SPEED SENSOR)
EURO-OBD
Description (Cont'd)
AT-85

Diagnostic ProcedureNLAT0039
1 CHECK SECONDARY SPEED SENSOR
Refer to ªComponent Inspectionº, AT-89.
OK or NG
OK (With CONSULT-II)©GO TO 2.
OK (Without CONSULT-
II)©GO TO 3.
NG©Repair or replace secondary speed sensor.
2 CHECK INPUT SIGNAL (With CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select ªTCM INPUT SIGNALSº in ªDATA MONITORº mode for ªCVTº with CONSULT-II.
3. Read out the value of ªVHCL/S SE´A/Tº while driving.
Check the value changes according to driving speed.
OK or NG
OK©GO TO 3.
NG©Check the following items:
+Harness for short or open between TCM, ECM and secondary speed sensor (Main
harness)
+Ground circuit for ECM
Refer to EC section (ªTROUBLE DIAGNOSIS FOR POWER SUPPLYº).
3 CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-84.
OK or NG
OK©INSPECTION END
NG©1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness con-
nector.
DTC P0720 VEHICLE SPEED SENSOR
(SECONDARY SPEED SENSOR)
EURO-OBD
Diagnostic Procedure
AT-88

DescriptionNLAT0041The engine speed signal is sent from the ECM to the TCM.
TCM TERMINALS AND REFERENCE VALUENLAT0041S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard (Approx.)
39 L/OREngine speed sig-
nal
When engine runs at idle speed. 0.5 - 1.5V
ON BOARD DIAGNOSIS LOGICNLAT0041S02
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
: MI Code No. 0725
SAT250K
SAT255K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NLAT0041S03CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If ªDIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DUREº has been previously conducted, always turn ignition
switch ªOFFº 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 ªONº and select ªDATA MONITORº mode
for ªENGINEº 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 1.3V
Selector lever: D position
If the check result is ªNGº, go to ªDiagnostic Procedureº, AT-92
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P0725 ENGINE SPEED SIGNALEURO-OBD
Description
AT-90

Diagnostic ProcedureNLAT0042
1 CHECK DTC WITH ECM
Perform diagnostic test mode II (self-diag results) for engine control. Check ignition signal circuit condition.
OK or NG
OK (With CONSULT-II)©GO TO 2.
OK (Without CONSULT-
II)©GO TO 3.
NG©Check ignition signal circuit for engine control. Refer to EC section (IGNITION SIGNAL).
2 CHECK INPUT SIGNAL (With CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select ªTCM INPUT SIGNALSº in ªDATA MONITORº mode for ªCVTº with CONSULT-II.
3. Read out the value of ªENGINE SPEEDº.
Check engine speed changes according to throttle position.
OK or NG
OK©GO TO 4.
NG©Check the following items:
+Harness for short or open between TCM and ECM
+Resistor and ignition coil
Refer to EC section (IGNITION SIGNAL).
3 CHECK INPUT SIGNAL (Without CONSULT-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 39 and ground.
Voltage (Idle speed):
0.5 - 1.5V
SAT424JA
OK or NG
OK©GO TO 4.
NG©Check the following items:
+Harness for short or open between TCM and ECM
+Resistor and ignition coil
Refer to EC section (IGNITION SIGNAL).
DTC P0725 ENGINE SPEED SIGNALEURO-OBD
Diagnostic Procedure
AT-92

4 CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-90.
OK or NG
OK©INSPECTION END
NG©1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness con-
nector.
DTC P0725 ENGINE SPEED SIGNALEURO-OBD
Diagnostic Procedure (Cont'd)
AT-93

DescriptionNLAT0055The torque converter clutch solenoid valve is activated 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 CVT 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
NLAT0055S01Remarks: Specification data are reference values.
Monitor item Condition Specification
Torque converter clutch solenoid valve
dutyLock-up ªOFFº
¯
Lock-up ªONºApproximately 4%
¯
Approximately 94%
TCM TERMINALS AND REFERENCE VALUENLAT0055S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard (Approx.)
3 GY/RTorque converter
clutch solenoid
valve
When CVT performs lock-up. 12.0V
When CVT does not perform lock-
up.0V
ON BOARD DIAGNOSIS LOGICNLAT0055S03
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: TCC SOLENOID/CIRC
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
: MI Code No. 0740
SAT250K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NLAT0055S04NOTE:
If ªDIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DUREº has been previously conducted, always turn ignition
switch ªOFFº and wait at least 5 seconds before conducting
the next test.
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE
EURO-OBD
Description
AT-94