2001 NISSAN ALMERA TINO engine

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

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

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

Diagnostic ProcedureNLAT0253
1 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.
SAT250K
3. Read out the value of ªVEHICLE SPEEDº while driving.
Check the value changes according to driving speed.
SAT236K
OK or NG
OK©GO TO 3.
NG©GO TO 2.
2 CHECK SECONDARY SPEED SENSOR (With CONSULT-II)
With CONSULT-II
1. Start engine.
MTBL0550
+Harness for short or open between TCM and secondary speed sensor (Main harness)
OK or NG
OK©GO TO 3.
NG©Repair or replace damaged parts.
VEHICLE SPEED SENSOR CVT
(SECONDARY SPEED SENSOR)
EXCEPT FOR EURO-OBD
Diagnostic Procedure
AT-130

SAT250K
SAT807HA
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURENLAT0254S03After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-IINLAT0254S03011) 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 and vehicle speed higher than 20
km/h (12 MPH).
Without CONSULT-IINLAT0254S03021) Start engine.
2) Drive vehicle under the following conditions:
Selector lever in ªDº position and vehicle speed higher than 20
km/h (12 MPH).
3) Perform self-diagnosis.
Refer to ªSELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II)º, AT-35.
PRIMARY SPEED SENSOREXCEPT FOR EURO-OBD
Description (Cont'd)
AT-133