NISSAN ALMERA TINO 2001 Service Repair Manual

SAT250K
SAT252K
SAT255K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NLAT0232S04CAUTION:
+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 ªCVTº with CONSULT-II.
2) Make sure that output voltage of line temperature sensor is
within the range below.
FLUID TEMP SEN: 0.5 - 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 ªDATA MONITORº mode for ªENGINEº with CONSULT-
II.
4) 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: 1.3V
Selector lever: D position
ENG SPEED: 450 rpm or more
If the check result is NG, go to ªDiagnostic Procedureº, AT-123.
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P1791 LINE PRESSURE SENSOREURO-OBD
Description (Cont'd)
AT-120

Wiring Diagram Ð AT Ð LPSNLAT0233MODELS WITH ECM IN ENGINE COMPARTMENTNLAT0233S01
YAT183
DTC P1791 LINE PRESSURE SENSOREURO-OBD
Wiring Diagram Ð AT Ð LPS
AT-121

MODELS WITH ECM IN CABINNLAT0233S02
YAT218
DTC P1791 LINE PRESSURE SENSOREURO-OBD
Wiring Diagram Ð AT Ð LPS (Cont'd)
AT-122

Diagnostic ProcedureNLAT0234
1 CHECK PRESSURE SENSOR
Refer to ªComponent Inspectionº, AT-124.
OK or NG
OK (With CONSULT-II)©GO TO 2.
OK (Without CONSULT-
II)©GO TO 3.
NG©Repair or replace pressure 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 ªLINE PRES SENº while driving.
+Throttle valve fully closed (PL Duty: 4%): Approx. 1.0V
+Throttle valve fully depressed (PL Duty: 94%): Approx. 4.0V
OK or NG
OK©GO TO 4.
NG©Check the following items:
+Harness for short or open between TCM, ECM and line pressure sensor (Main har-
ness)
+Ground circuit for ECM
Refer to EC section (ªTROUBLE DIAGNOSIS FOR POWER SUPPLYº).
3 CHECK INPUT SIGNAL (Without CONSULT-II)
Without CONSULT-II
Refer to ªComponent Inspectionº, AT-124.
OK or NG
OK©GO TO 4.
NG©Check the following items:
+Harness for short or open between TCM, ECM and line pressure sensor (Main har-
ness).
+Ground circuit for ECM
Refer to EC section (ªTROUBLE DIAGNOSIS FOR POWER SUPPLYº).
4 CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-120.
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 P1791 LINE PRESSURE SENSOREURO-OBD
Diagnostic Procedure
AT-123

SAT265K
Component Inspection=NLAT0235LINE PRESSURE SENSORNLAT0235S01+Start engine.
+Check voltage between terminals 1 and 6, 6 and 10.
Terminal No. Voltage
1 6 Approx. 0.5 - 4.5V
10 6 Approx. 4.5 - 5.5V
DTC P1791 LINE PRESSURE SENSOREURO-OBD
Component Inspection
AT-124

DescriptionNLAT0249ªCVT SAFE FUNCTIONº is function to protect CVT.
ON BOARD DIAGNOSIS LOGICNLAT0249S01
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: CVT SAFE FUNCTION
TCM is malfunctioning TCM
: 10th judgement flicker
SAT250K
SAT252K
SAT270K
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NLAT0249S02With CONSULT-II
1) Turn ignition switch ªONº and select ªDATA MONITORº mode
for CVT with CONSULT-II.
2) Start engine.
3) Run engine for at least 2 seconds at idle speed.
Without CONSULT-II
1) Start engine.
2) Perform self-diagnosis. Refer to TCM Self-diagnostic Proce-
dure (No Tools), AT-28 Ð EURO-OBD/AT-35, Except for
EURO-OBD.
Diagnostic ProcedureNLAT0250
1 CHECK INPUT SIGNAL (With CONSULT-II)
1. Turn ignition switch to ªONº and select ªSELF-DIAG RESULTSº mode for CVT with CONSULT-II.
2. Touch ªERASEº.
Perform ªDIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDUREº above.
Is the ªCVT SAFE FUNCTIONº displayed again?
OK©Replace TCM.
NG©INSPECTION END
CVT SAFE FUNCTION
Description
AT-125

DescriptionNLAT0251The 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 VALUENLAT0251S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard (Approx.)
29 G/RSecondary speed
sensor
When moving at 20 km/h (12 MPH),
use the CONSULT-II pulse fre-
quency measuring function.*1
CAUTION:
Connect the diagnosis data link
cable to the vehicle diagnosis
connector.
*1: A circuit tester cannot be used
to test this item.600 Hz
42 BThrottle position
sensor
(Ground)
ÐÐ
ON BOARD DIAGNOSIS LOGICNLAT0251S02
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: O/P PULLY SPD SIG
TCM does not receive the proper voltage
signal from the sensor.+Harness or connectors
(The sensor circuit is open or shorted.)
+Revolution sensor
: 1st judgement flicker
VEHICLE SPEED SENSOR CVT
(SECONDARY SPEED SENSOR)
EXCEPT FOR EURO-OBD
Description
AT-126

SAT250K
SAT806HB
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURENLAT0251S03After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-IINLAT0251S03011) Start engine.
2) Select ªSELF-DIAG RESULTSº mode for CVT with CONSULT-
II.
3) Drive vehicle under the following conditions:
Selector lever in ªDº position, vehicle speed higher than 30
km/h (19 MPH), throttle opening greater than 1/8 of the full
throttle position and driving for more than 5 seconds.
Without CONSULT-IINLAT0251S03021) Start engine.
2) Drive vehicle under the following conditions:
Selector lever in ªDº position, vehicle speed higher than 30
km/h (19 MPH), throttle opening greater than 1/8 of the full
throttle position and driving for more than 5 seconds.
3) Perform self-diagnosis.
Refer to ªSELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II)º, AT-35.
VEHICLE SPEED SENSOR CVT
(SECONDARY SPEED SENSOR)
EXCEPT FOR EURO-OBD
Description (Cont'd)
AT-127

Wiring Diagram Ð AT Ð VSSA/TNLAT0252MODELS WITH ECM IN ENGINE COMPARTMENTNLAT0252S01
YAT177
VEHICLE SPEED SENSOR CVT
(SECONDARY SPEED SENSOR)
EXCEPT FOR EURO-OBD
Wiring Diagram Ð AT Ð VSSA/T
AT-128

MODELS WITH ECM IN CABINNLAT0252S02
YAT216
VEHICLE SPEED SENSOR CVT
(SECONDARY SPEED SENSOR)
EXCEPT FOR EURO-OBD
Wiring Diagram Ð AT Ð VSSA/T (Cont'd)
AT-129