check engine NISSAN ALMERA 2001 Manual PDF

SAT014K
SAT971J
SAT021J
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NJAT0291S04CAUTION:
+Always drive vehicle at a safe speed.
+If conducting this ªDTC CONFIRMATION PROCEDUREº
again, always turn ignition switch ªOFFº and wait at least
5 seconds before continuing.
+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.
TESTING CONDITION:
Always drive vehicle on a level road to improve the accuracy
of test.
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-II
1) Start engine and select ªDATA MONITORº mode for ªA/Tº with
CONSULT-II.
2) Make sure that output voltage of A/T fluid temperature sensor
is within the range below.
FLUID TEMP SEN: 0.4 - 1.5V
If out of range, drive the vehicle to decrease the voltage (warm
up the fluid) or stop engine to increase the voltage (cool down
the fluid).
3) Select ª4TH GR FNCTN P0734º of ªDTC WORK SUPPORTº
mode for ªA/Tº with CONSULT-II and touch ªSTARTº.
4) Accelerate vehicle to 45 to 55 km/h (28 to 34 MPH) under the
following condition and release the accelerator pedal com-
pletely.
THROTTLE POSI: Less than 5.5/8 (at all times during step
4)
Selector lever: D position (OD ªONº)
+Check that ªGEARº shows ª3º after releasing pedal.
5) Depress accelerator pedal steadily with 1.0/8 - 2.0/8 of
ªTHROTTLE POSIº from a speed of 45 to 55 km/h (28 to 34
MPH) until ªTESTINGº has turned to ªSTOP VEHICLEº or
ªCOMPLETEDº. (It will take approximately 3 seconds.)
If the check result NG appears on CONSULT-II screen, go to
ªDIAGNOSTIC PROCEDUREº, AT-228.
If ªSTOP VEHICLEº appears on CONSULT-II screen, go to
following step.
+Check that ªGEARº shows ª4º when depressing accelera-
tor pedal with 1.0/8 - 2.0/8 of ªTHROTTLE POSIº.
+If ªTESTINGº does not appear on CONSULT-II for a long
time, select ªSELF-DIAGNOSISº for ªENGINEº. In case a
1st trip DTC other than P0734 is shown, refer to applicable
ªTROUBLE DIAGNOSIS FOR DTCº.
6) Stop vehicle.
7) Follow the instruction displayed. (Check for normal shifting
referring to the table below.)
DTC P0734 A/T 4TH GEAR FUNCTIONEURO-OBD
Description (Cont'd)
AT-225

SAT322GC
DescriptionNJAT0295The torque converter clutch solenoid valve is activated, with the
gear in ªD
4º, by the TCM in response to signals sent from the
vehicle speed and throttle position sensors. Lock-up piston opera-
tion 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
NJAT0295S01Remarks: 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 VALUENJAT0295S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement
standard
3 GY/RTorque converter
clutch solenoid
valve
When A/T performs lock-up. 8 - 15V
When A/T does not perform lock-
up.1V or less
ON BOARD DIAGNOSIS LOGICNJAT0295S03
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
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE
EURO-OBD
Description
AT-233

Diagnostic ProcedureNJAT0297
1 CHECK VALVE RESISTANCE
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 5 and ground.
Resistance:
5-20W
SAT889JB
OK or NG
OK©GO TO 2.
NG©1. Remove oil pan. Refer to AT-351.
2. Check the following items:
+Torque converter clutch solenoid valve
Refer to ªComponent Inspectionº, AT-238.
+Harness of terminal cord assembly for short or open
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE
EURO-OBD
Diagnostic Procedure
AT-236

SAT322GC
DescriptionNJAT0299The line pressure solenoid valve regulates the oil pump discharge
pressure to suit the driving condition in response to a signal sent
from the TCM.
The line pressure duty cycle value is not consistent when the
closed throttle position switch is ªONº. To confirm the line
pressure duty cycle at low pressure, the accelerator (throttle)
should be open until the closed throttle position switch is
ªOFFº.
CONSULT-II REFERENCE VALUE IN DATA MONITOR
MODE
NJAT0299S01Remarks: Specification data are reference values.
Monitor item Condition Specification
Line pressure solenoid valve dutySmall throttle opening
(Low line pressure)
¯
Large throttle opening
(High line pressure)Approximately 24%
¯
Approximately 95%
NOTE:
The line pressure duty cycle value is not consistent when the closed throttle position switch is ªONº. To confirm the line pressure duty
cycle at low pressure, the accelerator (throttle) should be open until the closed throttle position switch is ªOFFº.
TCM TERMINALS AND REFERENCE VALUENJAT0299S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard
1 R/WLine pressure
solenoid valve
When releasing accelerator pedal
after warming up engine.1.5 - 2.5V
When depressing accelerator pedal
fully after warming up engine.0.5V or less
2 P/BLine pressure
solenoid valve
(with dropping
resistor)When releasing accelerator pedal
after warming up engine.5 - 14V
When depressing accelerator pedal
fully after warming up engine.0.5V or less
ON BOARD DIAGNOSIS LOGICNJAT0299S03
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: L/PRESS SOL/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.)
+Line pressure solenoid valve
: P0745
DTC P0745 LINE PRESSURE SOLENOID VALVEEURO-OBD
Description
AT-239

Diagnostic ProcedureNJAT0301
1 CHECK VALVE RESISTANCE
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 4 and ground.
Resistance:
2.5-5W
SAT895JB
OK or NG
OK©GO TO 2.
NG©1. Remove control valve assembly. Refer to AT-351.
2. Check the following items:
+Line pressure solenoid valve
Refer to ªComponent Inspectionº, AT-245.
+Harness of terminal cord assembly for short or open
DTC P0745 LINE PRESSURE SOLENOID VALVEEURO-OBD
Diagnostic Procedure
AT-242

Diagnostic ProcedureNJAT0305
1 CHECK VALVE RESISTANCE
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 2 and ground.
Resistance:
20-30W
SAT900JB
OK or NG
OK©GO TO 2.
NG©1. Remove control valve assembly. Refer to AT-351.
2. Check the following items:
+Shift solenoid valve A
Refer to ªComponent Inspectionº, AT-251.
+Harness of terminal cord assembly for short or open
DTC P0750 SHIFT SOLENOID VALVE AEURO-OBD
Diagnostic Procedure
AT-249

Diagnostic ProcedureNJAT0309
1 CHECK VALVE RESISTANCE
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 1 and ground.
Resistance:
5-20W
SAT904JB
OK or NG
OK©GO TO 2.
NG©1. Remove control valve assembly. Refer to AT-351.
2. Check the following items:
+Shift solenoid valve B
Refer to ªComponent Inspectionº, AT-257.
+Harness of terminal cord assembly for short or open
DTC P0755 SHIFT SOLENOID VALVE BEURO-OBD
Diagnostic Procedure
AT-255

ON BOARD DIAGNOSIS LOGICNJAT0311S03
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: TP SEN/CIRC A/T
TCM receives an excessively low or high
voltage from the sensor.+Harness or connectors
(The sensor circuit is open or shorted.)
+Throttle position sensor
+Throttle position switch
: P1705
SAT014K
SAT971J
SAT014K
SAT020K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NJAT0311S04CAUTION:
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) Apply vacuum to the throttle opener, then check the following.
Refer to steps from 1 to 5 of ªPreparationº, ªTCM SELF-DIAG-
NOSTIC PROCEDURE (No Tools)º, AT-63.
2) Turn ignition switch ªONº and select ªDATA MONITORº mode
for ªA/Tº with CONSULT-II.
3) Check the following.
Accelerator pedal
conditionTHRTL POS SEN CLOSED THL/SW W/O THRL/P´SW
Fully released Less than 4.7V ON OFF
Partially
depressed0.1 - 4.6V OFF OFF
Fully depressed 1.9 - 4.6V OFF ON
If the check result is NG, go to ªDIAGNOSTIC PROCEDUREº,
AT-263.
If the check result is OK, go to following step.
4) Turn ignition switch ªONº and select ªDATA MONITORº mode
for ªENGINEº with CONSULT-II.
5) 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 ªONº)
If the check result is NG, go to ªDIAGNOSTIC PROCEDUREº,
AT-263.
If the check result is OK, go to following step.
6) Maintain the following conditions for at least 3 consecutive
seconds. 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 ªONº)
DTC P1705 THROTTLE POSITION SENSOREURO-OBD
Description (Cont'd)
AT-259

Diagnostic ProcedureNJAT0313
1 CHECK DTC WITH ECM
Perform diagnostic test mode II (self-diagnostic results) for engine control.
Refer to EC-74, ªMalfunction Indicator Lamp (MIL)º.
OK or NG
OK (With CONSULT-II)©GO TO 2.
OK (Without CONSULT-
II)©GO TO 3.
NG©Check throttle position sensor circuit for engine control. Refer to EC-207, ªDTC P0120
THROTTLE POSITION SENSORº.
2 CHECK INPUT SIGNAL (WITH CONSULT-II)
With CONSULT-II
1. Apply vacuum to the throttle opener then check the following. Refer from step 1 to 5 of ªPreparationº, ªTCM SELF-DI-
AGNOSTIC PROCEDURE (No Tools)º, AT-63.
2. Turn ignition switch to ªONº position.
(Do not start engine.)
3. Select ªECU INPUT SIGNALSº in ªDATA MONITORº mode for ªA/Tº with CONSULT-II.
SAT014K
4. Read out the value of ªTHRTL POS SENº.
Voltage:
Fully-closed throttle:
Approximately 0.5V
Fully-open throttle:
Approximately 4V
SAT614J
OK or NG
OK©GO TO 4.
NG©Check harness for short or open between ECM and TCM regarding throttle position sen-
sor circuit. (Main harness)
DTC P1705 THROTTLE POSITION SENSOREURO-OBD
Diagnostic Procedure
AT-263

3 CHECK INPUT SIGNAL (WITHOUT CONSULT-II)
Without CONSULT-II
1. Apply vacuum to the throttle opener then check the following. Refer to steps 1 to 5 of ªPreparationº, ªTCM SELF-DIAG-
NOSTIC PROCEDURE (No Tools)º, AT-63.
2. Turn ignition switch to ªONº position.
(Do not start engine.)
3. Check voltage between TCM terminals 41 and 42 while accelerator pedal is depressed slowly.
Voltage:
Fully-closed throttle valve:
Approximately 0.5V
Fully-open throttle valve:
Approximately 4V
(Voltage rises gradually in response to throttle position)
SAT453J
OK or NG
OK©GO TO 5.
NG©Check harness for short or open between ECM and TCM regarding throttle position sen-
sor circuit. (Main harness)
DTC P1705 THROTTLE POSITION SENSOREURO-OBD
Diagnostic Procedure (Cont'd)
AT-264